Replaced SAXException with IOException for enum xml writers

nx01-popcorn-mm-jdbc/src/main/java/org/eobjects/metamodel/doc/DocModelWriterTable.java

@@ -52,7 +52,6 @@ import org.x4o.o2o.tdoc.dom.ApiDocIndexItem;
 import org.x4o.o2o.tdoc.dom.ApiDocNode;
 import org.x4o.o2o.tdoc.dom.ApiDocNodeBody;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 public class DocModelWriterTable {
 	
@@ -101,7 +100,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.DESCRIPTION_LINKS,targetClasses={Table.class})
-	public void writeTableDescription(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeTableDescription(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		
@@ -145,7 +144,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.DESCRIPTION_NODE,targetClasses={Table.class})
-	public void writeTableSqlView(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeTableSqlView(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		
@@ -168,7 +167,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={Table.class},nodeBodyOrders={3},contentGroup="Columns",contentGroupType="summary")
-	public void writeTableSummary(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeTableSummary(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		if (TableType.VIEW.equals(table.getType())) {
@@ -184,7 +183,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={Table.class},nodeBodyOrders={1},contentGroup="Primary Key",contentGroupType="summary")
-	public void writeTablePKSummary(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeTablePKSummary(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		DBTable tableDB = getDBTable(event);
@@ -230,7 +229,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={Table.class},nodeBodyOrders={2},contentGroup="Indexes",contentGroupType="summary")
-	public void writeTableIDXSummary(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeTableIDXSummary(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		DBTable tableDB = getDBTable(event);
@@ -271,7 +270,7 @@ public class DocModelWriterTable {
 		}
 	}
 	
-	private void writeSqlBlock(ApiDocContentWriter writer,String sql) throws SAXException {
+	private void writeSqlBlock(ApiDocContentWriter writer,String sql) throws IOException {
 		writer.printTagStart(Tag.div,ApiDocContentCss.block);
 		writer.printTagStart(Tag.pre);
 		writer.printCharacters(sql);
@@ -280,7 +279,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.DETAIL,targetClasses={Table.class},nodeBodyOrders={1},contentGroup="Indexes",contentGroupType="overview")
-	public void writeTableDetailIndex(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeTableDetailIndex(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		//Table table  = (Table)event.getEventObject().getUserData();
 		DBTable tableDB = getDBTable(event);
@@ -346,7 +345,7 @@ public class DocModelWriterTable {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.DETAIL,targetClasses={Table.class},nodeBodyOrders={2},contentGroup="Columns",contentGroupType="overview")
-	public void writeTableDetail(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeTableDetail(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		Table table  = (Table)event.getEventObject().getUserData();
 		DBTable tableDB = getDBTable(event);

nx01-warp-manifestor/src/main/java/love/distributedrebirth/nx01/warp/manifestor/scopic/iomf5/ScopicManifest5ContentWriter.java

@@ -27,9 +27,10 @@ w * Copyright ©Δ∞ 仙上主天
 
 package love.distributedrebirth.nx01.warp.manifestor.scopic.iomf5;
 
+import java.io.IOException;
+
 import org.x4o.o2o.io.sax3.ContentWriter;
 import org.x4o.o2o.io.sax3.ContentWriterTagWrapper;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 import love.distributedrebirth.nx01.warp.manifestor.manifest.WarpManifestX0TheVersion;
@@ -58,7 +59,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 	public void strobeManifestStart() {
 		try {
 			writer.startDocument();
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}
@@ -72,7 +73,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute ("", ScopicManifest5FrameTag.MANIFEST_VERSION, "", "", WarpManifestX0TheVersion.VERSION_5_0.getQName());
 			writer.printTagStart(ScopicManifest5FrameTag.MANIFEST, atts);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}
@@ -95,7 +96,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 			atts.addAttribute ("", ScopicManifest5FrameTag.SECTION_NAME, "", "", sectionName);
 			writer.printTagStart(ScopicManifest5FrameTag.SECTION, atts);
 			openSection = true;
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}
@@ -110,7 +111,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 	public void strobeRemarkContent(String remark) {
 		try {
 			writer.printComment(remark);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}
@@ -125,7 +126,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 			}
 			writer.printTagEnd(ScopicManifest5FrameTag.MANIFEST);
 			writer.endDocument();
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}
@@ -140,7 +141,7 @@ public class ScopicManifest5ContentWriter implements ScopicManifestContent<Strin
 			writer.printTagStart(ScopicManifest5FrameTag.ATTRIBUTE, atts);
 			writer.printCharacters(value);
 			writer.printTagEnd(ScopicManifest5FrameTag.ATTRIBUTE);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ScopicManifestException(e);
 		}
 	}

nx01-x4o-driver/src/main/java/org/x4o/xml/eld/doc/EldDocWriter.java

@@ -144,8 +144,6 @@ public class EldDocWriter {
 			ApiDocGenerator writer = new ApiDocGenerator();
 			ApiDoc doc = buildLanguageDoc();
 			writer.write(doc, basePath);
-		} catch (SAXException e) {
-			throw new ElementException(e);
 		} catch (IOException e) {
 			throw new ElementException(e);
 		}

nx01-x4o-driver/src/main/java/org/x4o/xml/eld/doc/EldDocWriterElementClass.java

@@ -42,7 +42,6 @@ import org.x4o.xml.element.ElementConfigurator;
 import org.x4o.xml.element.ElementNamespace;
 import org.x4o.xml.lang.X4OLanguage;
 import org.x4o.xml.lang.X4OLanguageModule;
-import org.xml.sax.SAXException;
 
 /**
  * EldDocWriterElementClass writer all content parts for the ElementClass.
@@ -66,17 +65,17 @@ public class EldDocWriterElementClass implements ApiDocContentPrinter {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={ElementClass.class},nodeBodyOrders={1},contentGroup="element",contentGroupType="summary")
-	public void writeElementX4OSummary(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeElementX4OSummary(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		printApiTableBean(event, "Element", "class","id","description");
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={ElementClass.class},nodeBodyOrders={2},contentGroup="attribute",contentGroupType="summary")
-	public void writeElementClassAttribute(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeElementClassAttribute(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		printApiTable(event,"Element Class Attribute Summary",ElementClassAttribute.class);
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={ElementClass.class},nodeBodyOrders={3},contentGroup="configurator",contentGroupType="summary")
-	public void writeElementConfigurator(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeElementConfigurator(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		printApiTable(event,"Element Configurator Summary",ElementConfigurator.class);
 	}
 	
@@ -99,7 +98,7 @@ public class EldDocWriterElementClass implements ApiDocContentPrinter {
 	*/
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.SUMMARY,targetClasses={ElementClass.class},nodeBodyOrders={10},contentGroup="bean",contentGroupType="summary")
-	public void writeElementObjectPropertiesSummary(ApiDocWriteEvent<ApiDocNode> event) throws SAXException, IOException {
+	public void writeElementObjectPropertiesSummary(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ElementClass ec  = (ElementClass)event.getEventObject().getUserData();
 		Class<?> beanClass = ec.getObjectClass();
 		if (beanClass==null) {
@@ -109,7 +108,7 @@ public class EldDocWriterElementClass implements ApiDocContentPrinter {
 	}
 	
 	@ApiDocNodeWriterMethod(nodeBody=ApiDocNodeBody.DESCRIPTION_LINKS,targetClasses={ElementClass.class})
-	public void writeElementRelationLinks(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeElementRelationLinks(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		ElementClass ec  = (ElementClass)event.getEventObject().getUserData();
 		ElementNamespace ns = (ElementNamespace)event.getEventObject().getParent().getUserData();

nx01-x4o-driver/src/main/java/org/x4o/xml/eld/doc/EldDocXTreePageWriter.java

@@ -22,6 +22,7 @@
  */
 package org.x4o.xml.eld.doc;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
@@ -41,7 +42,6 @@ import org.x4o.xml.element.ElementInterface;
 import org.x4o.xml.element.ElementNamespace;
 import org.x4o.xml.lang.X4OLanguage;
 import org.x4o.xml.lang.X4OLanguageModule;
-import org.xml.sax.SAXException;
 
 /**
  * EldDocXTreePageWriter for dom overview of tree but as seperate page.
@@ -56,7 +56,7 @@ public class EldDocXTreePageWriter extends DefaultPageWriterTree implements ApiD
 	}
 	
 	// TODO: rm this old tree code;
-	private void walkTree(TreeNode node,ApiDocContentWriter writer,String pathPrefix) throws SAXException {
+	private void walkTree(TreeNode node,ApiDocContentWriter writer,String pathPrefix) throws IOException {
 		String href = toElementUri(pathPrefix,node.module,node.namespace,node.elementClass);
 		
 		writer.printTagStart(Tag.ul);
@@ -78,7 +78,7 @@ public class EldDocXTreePageWriter extends DefaultPageWriterTree implements ApiD
 	 * @see org.x4o.o2o.tdoc.DefaultPageWriterTree#writePageContent(org.x4o.o2o.tdoc.dom.ApiDocWriteEvent)
 	 */
 	@Override
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 		//selectRootNode(e.getDoc()); // create
 		ApiDoc doc = e.getDoc();
 		X4OLanguage language = (X4OLanguage)doc.getRootNode().getUserData();
@@ -130,12 +130,12 @@ public class EldDocXTreePageWriter extends DefaultPageWriterTree implements ApiD
 	protected ApiDocNode selectRootNode(ApiDoc doc) {
 		try {
 			return createXTree(doc);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new IllegalStateException("Could not create XTree for: "+doc.getName()+" error: "+e.getMessage(),e);
 		}
 	}
 	
-	private ApiDocNode createXTree(ApiDoc doc) throws SAXException {
+	private ApiDocNode createXTree(ApiDoc doc) throws IOException {
 		
 		X4OLanguage language = (X4OLanguage)doc.getRootNode().getUserData();
 		ApiDocNode root = new ApiDocNode(language,"root","Root","Language root");
@@ -165,7 +165,7 @@ public class EldDocXTreePageWriter extends DefaultPageWriterTree implements ApiD
 		return root;
 	}
 	
-	private void walkTree(TreeNode node,String pathPrefix) throws SAXException {
+	private void walkTree(TreeNode node,String pathPrefix) throws IOException {
 		//String href = toElementUri(pathPrefix,node.module,node.namespace,node.elementClass);
 		List<TreeNode> childs = findChilderen(node);
 		for (TreeNode child:childs) {

nx01-x4o-driver/src/main/java/org/x4o/xml/eld/xsd/EldXsdWriter.java

@@ -140,7 +140,7 @@ public class EldXsdWriter {
 		}
 	}
 	
-	private void generateSchema(String namespaceUri,ContentWriterXsd xsdWriter) throws SAXException {
+	private void generateSchema(String namespaceUri,ContentWriterXsd xsdWriter) throws IOException {
 		ElementNamespace ns = language.findElementNamespace(namespaceUri);
 		if (ns==null) {
 			throw new NullPointerException("Could not find namespace: "+namespaceUri);

nx01-x4o-driver/src/main/java/org/x4o/xml/eld/xsd/EldXsdWriterElement.java

@@ -22,6 +22,7 @@
  */
 package	org.x4o.xml.eld.xsd;
 
+import java.io.IOException;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Collections;
@@ -148,7 +149,7 @@ public class EldXsdWriterElement {
 	
 	private static final String COMMENT_FORMAT = "%1$-20s %2$s";
 	
-	private void prologWriteGenerator() throws SAXException {
+	private void prologWriteGenerator() throws IOException {
 		if (propertyConfig.getPropertyBoolean(EldXsdWriter.PROLOG_SEPERATOR_ENABLE)) {
 			xsdWriter.printComment(propertyConfig.getPropertyString(EldXsdWriter.PROLOG_SEPERATOR_LINE));
 		}
@@ -171,7 +172,7 @@ public class EldXsdWriterElement {
 		xsdWriter.printComment(b.toString());
 	}
 	
-	private void prologWriteNSMeta(ElementNamespace ns) throws SAXException {
+	private void prologWriteNSMeta(ElementNamespace ns) throws IOException {
 		String chEnter = propertyConfig.getPropertyString(ContentWriterXml.OUTPUT_CHAR_NEWLINE);
 		String chTab = propertyConfig.getPropertyString(ContentWriterXml.OUTPUT_CHAR_TAB);
 		if (propertyConfig.getPropertyBoolean(EldXsdWriter.PROLOG_XMLNS_INFO_ENABLE)) {
@@ -204,7 +205,7 @@ public class EldXsdWriterElement {
 		}
 	}
 	
-	public void startSchema(ElementNamespace ns) throws SAXException {
+	public void startSchema(ElementNamespace ns) throws IOException {
 		
 		xsdWriter.startDocument();
 		
@@ -213,7 +214,11 @@ public class EldXsdWriterElement {
 		
 		for (String uri:namespaces.keySet()) {
 			String prefix = namespaces.get(uri);
+			try {
 				xsdWriter.getContentWriterWrapped().startPrefixMapping(prefix, uri);
+			} catch (SAXException e) {
+				throw new IOException(e);
+			}
 		}
 		
 		AttributesImpl atts = new AttributesImpl();
@@ -234,13 +239,17 @@ public class EldXsdWriterElement {
 		writeNamespaceAttributes(ns);
 	}
 	
-	public void endSchema() throws SAXException {
+	public void endSchema() throws IOException {
 		xsdWriter.printTagEnd(Tag.schema);
+		try {
 			xsdWriter.getContentWriterWrapped().ignorableWhitespace(XMLConstants.CHAR_NEWLINE);
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 		xsdWriter.endDocument();
 	}
 	
-	private void writeNamespaceAttributes(ElementNamespace ns) throws SAXException {
+	private void writeNamespaceAttributes(ElementNamespace ns) throws IOException {
 		for (ElementNamespaceAttribute eah:ns.getElementNamespaceAttributes()) {
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute ("", "name", "", "", eah.getAttributeName());
@@ -249,7 +258,7 @@ public class EldXsdWriterElement {
 		}
 	}
 	
-	public void writeElementClass(ElementClass ec,ElementNamespace nsWrite) throws SAXException {
+	public void writeElementClass(ElementClass ec,ElementNamespace nsWrite) throws IOException {
 		
 		AttributesImpl atts = new AttributesImpl();
 		if (nsWrite.getLanguageRoot()!=null && nsWrite.getLanguageRoot()) {
@@ -314,7 +323,11 @@ public class EldXsdWriterElement {
 		
 		if (ec.getAutoAttributes()!=null && ec.getAutoAttributes()==false) {
 			// oke, reverse this if and rm whitespace.
+			try {
 				xsdWriter.getContentWriterWrapped().ignorableWhitespace(' ');
+			} catch (SAXException e) {
+				throw new IOException(e);
+			}
 			
 		} else {
 			
@@ -374,7 +387,7 @@ public class EldXsdWriterElement {
 		}
 	}
 	
-	private void writeElementClassNamespaces(ElementClass ecWrite,ElementNamespace nsWrite,ElementNamespace ns) throws SAXException {
+	private void writeElementClassNamespaces(ElementClass ecWrite,ElementNamespace nsWrite,ElementNamespace ns) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		List<String> refElements = new ArrayList<String>(20);
 		for (ElementClass checkClass:ns.getElementClasses()) {
@@ -428,7 +441,7 @@ public class EldXsdWriterElement {
 	}
 	
 	
-	public void writeElement(ElementClass ec,ElementNamespace nsWrite) throws SAXException {
+	public void writeElement(ElementClass ec,ElementNamespace nsWrite) throws IOException {
 		if (nsWrite.getLanguageRoot()!=null && nsWrite.getLanguageRoot()) {
 			return; // is done in writeElementClass
 		}
@@ -440,13 +453,13 @@ public class EldXsdWriterElement {
 		xsdWriter.printTagEnd(Tag.element);
 	}
 	
-	private void writeElementAttribute(ElementMetaBase base,AttributesImpl atts) throws SAXException {
+	private void writeElementAttribute(ElementMetaBase base,AttributesImpl atts) throws IOException {
 		xsdWriter.printTagStart(Tag.attribute,atts);
 		writeElementMetaBase(base);
 		xsdWriter.printTagEnd(Tag.attribute);
 	}
 	
-	private void  writeElementMetaBase(ElementMetaBase base) throws SAXException {
+	private void  writeElementMetaBase(ElementMetaBase base) throws IOException {
 		if (base==null) {
 			return;
 		}

nx01-x4o-driver/src/main/java/org/x4o/xml/io/AbstractX4OConnectionDebug.java

@@ -80,7 +80,11 @@ public abstract class AbstractX4OConnectionDebug implements X4OConnection {
 		
 		// debug language
 		if (languageSession.hasX4ODebugWriter()) {
+			try {
 				languageSession.getX4ODebugWriter().debugConnectionStart(languageSession, this);
+			} catch (IOException e) {
+				throw new SAXException(e);
+			}
 			
 			// Add debug phases for all phases
 			for (String key:languageSession.getLanguage().getPhaseManager().getPhaseKeys()) {

nx01-x4o-driver/src/main/java/org/x4o/xml/io/X4OContentParser.java

@@ -171,7 +171,7 @@ public class X4OContentParser {
 		}
 	}
 	
-	private void debugMessage(String type,String key,Object value,X4OLanguageSession languageSession) throws SAXException {
+	private void debugMessage(String type,String key,Object value,X4OLanguageSession languageSession) throws IOException {
 		if (languageSession.hasX4ODebugWriter()) {
 			languageSession.getX4ODebugWriter().debugSAXMessage(type,key,""+value);
 		}

nx01-x4o-driver/src/main/java/org/x4o/xml/io/X4ODebugWriter.java

@@ -22,6 +22,7 @@
  */
 package	org.x4o.xml.io;
 
+import java.io.IOException;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -150,7 +151,7 @@ public class X4ODebugWriter {
 					atts.addAttribute("", "language","","", elementLanguage.getLanguage().getLanguageName());
 				}
 				contentWriter.printTagStart (Tag.executePhase, atts);
-			} catch (SAXException e) {
+			} catch (IOException e) {
 				throw new X4OPhaseException(phase,e);
 			}
 		}
@@ -165,7 +166,7 @@ public class X4ODebugWriter {
 				contentWriter.printTagStartEnd(Tag.executePhaseDone, atts);
 				
 				contentWriter.printTagEnd (Tag.executePhase);
-			} catch (SAXException e) {
+			} catch (IOException e) {
 				throw new X4OPhaseException(phase,e);
 			}
 		}
@@ -184,7 +185,7 @@ public class X4ODebugWriter {
 		return buf.toString();
 	}
 	
-	public void debugConnectionStart(X4OLanguageSession languageSession,X4OConnection ec) throws SAXException {
+	public void debugConnectionStart(X4OLanguageSession languageSession,X4OConnection ec) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "language", "", "", languageSession.getLanguage().getLanguageName());
 		atts.addAttribute("", "languageVersion", "", "", languageSession.getLanguage().getLanguageVersion());
@@ -221,7 +222,7 @@ public class X4ODebugWriter {
 	}
 	
 	
-	public void debugConnectionEnd() throws SAXException {
+	public void debugConnectionEnd() throws IOException {
 		contentWriter.printTagEnd(Tag.X4OConnection);
 	}
 	
@@ -246,12 +247,12 @@ public class X4ODebugWriter {
 			debugLanguageDefaultClass("defaultElementNamespaceAttributeComparator",conf.getDefaultElementNamespaceAttributeComparator());
 			
 			contentWriter.printTagEnd(Tag.X4OLanguageDefaultClasses);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
 	
-	private void debugLanguageDefaultClass(String name,Class<?> clazz) throws SAXException {
+	private void debugLanguageDefaultClass(String name,Class<?> clazz) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "name", "", "", name);
 		atts.addAttribute("", "className", "", "", clazz.getName());
@@ -267,7 +268,7 @@ public class X4ODebugWriter {
 				debugPhase(phase2);
 			}
 			contentWriter.printTagEnd(Tag.phaseOrder);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			// fall back...
 			if (phase==null) {
 				if (phases.isEmpty()) {
@@ -297,7 +298,7 @@ public class X4ODebugWriter {
 				contentWriter.printTagCharacters(Tag.X4OPhaseDependency, dep);
 			}
 			contentWriter.printTagEnd(Tag.phase);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new X4OPhaseException(phase,e);
 		}
 	}
@@ -378,7 +379,7 @@ public class X4ODebugWriter {
 			}
 			
 			contentWriter.printTagEnd(Tag.ElementLanguageModules);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
@@ -439,7 +440,7 @@ public class X4ODebugWriter {
 			contentWriter.printTagStart(Tag.element, atts);
 			// FIXME put elementObject herer ?
 			contentWriter.printTagEnd(Tag.element);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
@@ -462,15 +463,15 @@ public class X4ODebugWriter {
 		return buff;
 	}
 	
-	public void debugSAXConfigStart() throws SAXException {
+	public void debugSAXConfigStart() throws IOException {
 		contentWriter.printTagStart(Tag.SAXConfig);
 	}
 	
-	public void debugSAXConfigEnd() throws SAXException {
+	public void debugSAXConfigEnd() throws IOException {
 		contentWriter.printTagEnd(Tag.SAXConfig);
 	}
 	
-	public void debugSAXMessage(String type,String key,String value) throws SAXException {
+	public void debugSAXMessage(String type,String key,String value) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "key", "", "", key);
 		//atts.addAttribute("", "value", "", "", value);
@@ -487,7 +488,7 @@ public class X4ODebugWriter {
 			contentWriter.printTagStart(Tag.message, atts);
 			contentWriter.printCharacters(message);
 			contentWriter.printTagEnd(Tag.message);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
@@ -503,7 +504,7 @@ public class X4ODebugWriter {
 			contentWriter.printTagStart(Tag.runElementConfigurator, atts);
 			debugElement(element);
 			contentWriter.printTagEnd(Tag.runElementConfigurator);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
@@ -521,12 +522,12 @@ public class X4ODebugWriter {
 			contentWriter.printTagStart(Tag.doBind, atts);
 			debugElement(element);
 			contentWriter.printTagEnd(Tag.doBind);
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new ElementException(e);
 		}
 	}
 	
-	private void debugElementClass(ElementClass elementClass) throws SAXException {
+	private void debugElementClass(ElementClass elementClass) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "id", "", "", elementClass.getId());
 		atts.addAttribute("", "autoAttributes", "", "", ""+elementClass.getAutoAttributes());
@@ -545,7 +546,7 @@ public class X4ODebugWriter {
 		contentWriter.printTagEnd(Tag.elementClass);
 	}
 	
-	private void debugElementClassBase(ElementClassBase elementClassBase) throws SAXException {
+	private void debugElementClassBase(ElementClassBase elementClassBase) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "description", "", "", elementClassBase.getDescription());
 		atts.addAttribute("", "className", "", "", elementClassBase.getClass().getName());
@@ -555,7 +556,7 @@ public class X4ODebugWriter {
 		contentWriter.printTagEnd(Tag.elementClassBase);
 	}
 	
-	private void debugElementConfigurator(List<ElementConfigurator> elementConfigurators) throws SAXException {
+	private void debugElementConfigurator(List<ElementConfigurator> elementConfigurators) throws IOException {
 		for (ElementConfigurator elementConfigurator:elementConfigurators) {
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute("", "description", "", "", elementConfigurator.getDescription());
@@ -564,7 +565,7 @@ public class X4ODebugWriter {
 		}
 	}
 	
-	private void debugElementConfiguratorGlobal(List<ElementConfiguratorGlobal> elementConfigurators) throws SAXException {
+	private void debugElementConfiguratorGlobal(List<ElementConfiguratorGlobal> elementConfigurators) throws IOException {
 		for (ElementConfiguratorGlobal elementConfigurator:elementConfigurators) {
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute("", "description", "", "", elementConfigurator.getDescription());
@@ -573,7 +574,7 @@ public class X4ODebugWriter {
 		}
 	}
 	
-	private void debugElementClassAttributes(Collection<ElementClassAttribute> elementClassAttributes) throws SAXException {
+	private void debugElementClassAttributes(Collection<ElementClassAttribute> elementClassAttributes) throws IOException {
 		for (ElementClassAttribute elementClassAttribute:elementClassAttributes) {
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute("", "id", "", "", elementClassAttribute.getId());
@@ -597,7 +598,7 @@ public class X4ODebugWriter {
 		}	
 	}
 	
-	private void debugObjectConverter(ObjectConverter objectConverter) throws SAXException {
+	private void debugObjectConverter(ObjectConverter objectConverter) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "objectClassTo", "", "", objectConverter.getObjectClassTo().getName());
 		atts.addAttribute("", "objectClassBack", "", "", objectConverter.getObjectClassBack().getName());
@@ -609,7 +610,7 @@ public class X4ODebugWriter {
 		contentWriter.printTagEnd(Tag.objectConverter);
 	}
 	
-	private void debugElementBindingHandler(List<ElementBindingHandler> elementBindingHandlers) throws SAXException {
+	private void debugElementBindingHandler(List<ElementBindingHandler> elementBindingHandlers) throws IOException {
 		for (ElementBindingHandler bind:elementBindingHandlers) {
 			AttributesImpl atts = new AttributesImpl();
 			atts.addAttribute("", "className", "", "", bind.getClass().getName());
@@ -649,9 +650,10 @@ public class X4ODebugWriter {
 						contentWriter.getContentWriterWrapped().endPrefixMapping(prefix);
 					}
 					contentWriter.printTagEnd(Tag.printElementTree);
-					
 				} catch (SAXException e) {
 					throw new X4OPhaseException(phase,e);
+				} catch (IOException e) {
+					throw new X4OPhaseException(phase,e);
 				}
 			}
 			
@@ -668,9 +670,9 @@ public class X4ODebugWriter {
 				return null;
 			}
 			
-			private void printXML(Element element) throws SAXException {
+			private void printXML(Element element) throws SAXException, IOException {
 				if (element==null) {
-					throw new SAXException("Can't print debug xml of null element.");
+					throw new IOException("Can't print debug xml of null element.");
 				}
 				ContentWriter handler = getContentWriter();
 				if (element.getElementType().equals(Element.ElementType.comment)) {
@@ -682,7 +684,7 @@ public class X4ODebugWriter {
 					return;
 				}
 				if (element.getElementClass()==null) {
-					throw new SAXException("Element without ElementClass is not valid: "+element+" obj: "+element.getElementObject());
+					throw new IOException("Element without ElementClass is not valid: "+element+" obj: "+element.getElementObject());
 				}
 				
 				AttributesImpl atts = new AttributesImpl();

nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/FCDocPageWriterCakeTower.java

@@ -32,7 +32,6 @@ import org.x4o.o2o.tdoc.ApiDocContentWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocPage;
 import org.x4o.o2o.tdoc.dom.ApiDocPageWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 /**
@@ -48,7 +47,7 @@ public class FCDocPageWriterCakeTower implements ApiDocPageWriter {
 	}
 	
 	@Override
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException, IOException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 		ApiDocContentWriter writer = e.getWriter();
 		try (Closeable content = writer.docPageContent()) {
 			try (Closeable table = writer.docTable("Cake Splices", null, ApiDocContentCss.overviewSummary)) {
@@ -60,7 +59,7 @@ public class FCDocPageWriterCakeTower implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writeCake(ApiDocWriteEvent<ApiDocPage> e, FourCornerDotCake slice) throws SAXException, IOException {
+	private void writeCake(ApiDocWriteEvent<ApiDocPage> e, FourCornerDotCake slice) throws IOException {
 		String rootId = e.getDoc().getRootNode().getId();
 		ApiDocContentWriter writer = e.getWriter();
 		try (Closeable tableRow = writer.docTableRow()) {
@@ -77,22 +76,20 @@ public class FCDocPageWriterCakeTower implements ApiDocPageWriter {
 			}
 			writer.printTagEnd(Tag.td);
 			
-			writer.printTagStart(Tag.td, ApiDocContentCss.colOne);
+			try (Closeable td = writer.printTag(Tag.td, ApiDocContentCss.colOne)) {
 				writer.printCharacters(String.format("0x%06X", slice.getStart()));
-			writer.printTagEnd(Tag.td);
+			}
-			
+			try (Closeable td = writer.printTag(Tag.td, ApiDocContentCss.colOne)) {
-			writer.printTagStart(Tag.td, ApiDocContentCss.colLast);
 				writer.printCharacters(String.format("0x%06X", slice.getStop()));
-			writer.printTagEnd(Tag.td);
+			}
-			
+			try (Closeable td = writer.printTag(Tag.td, ApiDocContentCss.colOne)) {
-			writer.printTagStart(Tag.td, ApiDocContentCss.colLast);
 				writer.printCharacters(String.format("%d", slice.getLength()));
-			writer.printTagEnd(Tag.td);
+			}
 		}
 	}
 	
-	private void writeTableBoxHeader(ApiDocContentWriter writer, String[] headers) throws SAXException {
+	private void writeTableBoxHeader(ApiDocContentWriter writer, String[] headers) throws IOException {
-		writer.printTagStart(Tag.tr);
+		try (Closeable td = writer.printTag(Tag.tr)) {
 			AttributesImpl atts;
 			for (int i = 0; i < headers.length; i++) {
 				atts = new AttributesImpl();
@@ -104,10 +101,10 @@ public class FCDocPageWriterCakeTower implements ApiDocPageWriter {
 					atts.addAttribute ("", "class", "", "", ApiDocContentCss.colLast.name());
 				}
 				atts.addAttribute ("", "scope", "", "", "col");
-			writer.printTagStart(Tag.th, atts);
+				try (Closeable th = writer.printTag(Tag.th, atts)) {
 					writer.printCharacters(headers[i]);
-			writer.printTagEnd(Tag.th);
+				}
-		}
+			}
-		writer.printTagEnd(Tag.tr);
+		}
 	}
 }

nx01-x4o-fc18/src/test/java/org/x4o/fc18/cake2/fcdoc/FCDocPageWriterMuffin.java

@@ -44,7 +44,6 @@ import org.x4o.o2o.tdoc.ApiDocContentWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocPage;
 import org.x4o.o2o.tdoc.dom.ApiDocPageWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 /**
@@ -62,7 +61,7 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 	// TODO: make all symbols href links
 	
 	@Override
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException, IOException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 		ApiDocContentWriter writer = e.getWriter();
 		try (Closeable content = writer.docPageContent()) {
 			try (Closeable table = writer.docTable(FourCornerDotCake.FC_CDC1604_P6.nameSpec(), null, ApiDocContentCss.overviewSummary)) {
@@ -165,7 +164,7 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writePIN(ApiDocContentWriter writer) throws SAXException, IOException {
+	private void writePIN(ApiDocContentWriter writer) throws IOException {
 		for (int t = 0; t < 27; t++) {
 			try (Closeable tableRow = writer.docTableRow()) {
 				String prefixNCR = String.format("T%03d", t + 1);
@@ -205,7 +204,7 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writePIE(ApiDocContentWriter writer, FourCornerDotCake slice) throws IOException, SAXException {
+	private void writePIE(ApiDocContentWriter writer, FourCornerDotCake slice) throws IOException {
 		try (Closeable tableRow = writer.docTableRow()) {
 			String prefixHex = String.format("0x%06X", slice.getStart());
 			writer.printTagStart(Tag.td, ApiDocContentCss.colFirst);
@@ -240,7 +239,7 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writeP7x(ApiDocContentWriter writer, FourCornerDotCake slice, Function<Integer, Integer> conv) throws SAXException, IOException {
+	private void writeP7x(ApiDocContentWriter writer, FourCornerDotCake slice, Function<Integer, Integer> conv) throws IOException {
 		String prefixHex = String.format("0x%06X", slice.getStart());
 		try (Closeable tableRow = writer.docTableRow()) {
 			writer.printTagStart(Tag.td, ApiDocContentCss.colFirst);
@@ -268,7 +267,7 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writeCDC(ApiDocContentWriter writer, int off) throws SAXException, IOException {
+	private void writeCDC(ApiDocContentWriter writer, int off) throws IOException {
 		String prefixHex = String.format("0x%05X0", off >> 4);
 		try (Closeable tableRow = writer.docTableRow()) {
 			writer.printTagStart(Tag.td, ApiDocContentCss.colOne);
@@ -304,11 +303,11 @@ public class FCDocPageWriterMuffin implements ApiDocPageWriter {
 		}
 	}
 	
-	private void writeTableBoxHeader(ApiDocContentWriter writer, int num) throws SAXException {
+	private void writeTableBoxHeader(ApiDocContentWriter writer, int num) throws IOException {
 		writeTableBoxHeader(writer, num, false);
 	}
 	
-	private void writeTableBoxHeader(ApiDocContentWriter writer, int num, boolean colFirst) throws SAXException {
+	private void writeTableBoxHeader(ApiDocContentWriter writer, int num, boolean colFirst) throws IOException {
 		writer.printTagStart(Tag.tr);
 		AttributesImpl atts;
 		if (colFirst) {

nx01-x4o-o2o/src/main/java/org/x4o/o2o/io/ContentWriterHtml.java

@@ -22,6 +22,8 @@
  */
 package	org.x4o.o2o.io;
 
+import java.io.Closeable;
+import java.io.IOException;
 import java.io.Writer;
 import java.util.Calendar;
 
@@ -48,11 +50,15 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		return getContentWriterWrapped().getPropertyConfig();
 	}
 	
-	public void printDocType(DocType doc) throws SAXException {
+	public void printDocType(DocType doc) throws IOException {
+		try {
 			getContentWriterWrapped().startDTD(doc.getName(), doc.getPublicId(), doc.getSystemId());
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
-	public void printHtmlStart(String language) throws SAXException {
+	public void printHtmlStart(String language) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		if (language!=null) {
 			atts.addAttribute("", "lang", "", "", language);
@@ -60,20 +66,20 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagStart(Tag.html,atts);
 	}
 	
-	public void printHtmlEnd() throws SAXException {
+	public void printHtmlEnd() throws IOException {
 		printTagEnd(Tag.html);
 	}
 	
-	public void printHeadMetaDate() throws SAXException {
+	public void printHeadMetaDate() throws IOException {
 		Calendar cal = Calendar.getInstance();
 		printHeadMeta("date",cal.get(Calendar.YEAR)+"-"+(cal.get(Calendar.MONTH)+1)+"-"+cal.get(Calendar.DAY_OF_MONTH));
 	}
 	
-	public void printHeadTitle(String title) throws SAXException {
+	public void printHeadTitle(String title) throws IOException {
 		printTagCharacters(Tag.title,title);
 	}
 
-	public void printHeadMetaContentType() throws SAXException {
+	public void printHeadMetaContentType() throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "http-equiv", "", "", "Content-Type");
 		atts.addAttribute("", "content", "", "", "text/html");
@@ -81,14 +87,14 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagStartEnd(Tag.meta, atts);
 	}
 	
-	public void printHeadMeta(String name,String content) throws SAXException {
+	public void printHeadMeta(String name,String content) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "name", "", "", name);
 		atts.addAttribute("", "content", "", "", content);
 		printTagStartEnd(Tag.meta, atts);
 	}
 	
-	public void printHeadLinkCss(String cssUrl) throws SAXException {
+	public void printHeadLinkCss(String cssUrl) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "rel", "", "", "stylesheet");
 		atts.addAttribute("", "type", "", "", "text/css");
@@ -97,7 +103,7 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagStartEnd(Tag.link, atts);
 	}
 	
-	public void printScriptInline(String script) throws SAXException {
+	public void printScriptInline(String script) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "type", "", "", "text/javascript");
 		printTagStart(Tag.script,atts);
@@ -105,11 +111,11 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(Tag.script);
 	}
 	
-	public void printScriptNoDiv() throws SAXException {
+	public void printScriptNoDiv() throws IOException {
 		printScriptNoDiv(null);
 	}
 	
-	public void printScriptNoDiv(String text) throws SAXException {
+	public void printScriptNoDiv(String text) throws IOException {
 		if (text==null) {
 			text = "JavaScript is disabled on your browser.";
 		}
@@ -118,7 +124,7 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(Tag.noscript);
 	}
 
-	public void printHrefNamed(String name) throws SAXException {
+	public void printHrefNamed(String name) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "name", "", "", name);
 		printTagStart(Tag.a,atts);
@@ -126,7 +132,7 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(Tag.a);
 	}
 	
-	public void printHrefTarget(String href,String title,String target) throws SAXException {
+	public void printHrefTarget(String href,String title,String target) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "href", "", "", href);
 		atts.addAttribute("", "target", "", "", target);
@@ -135,15 +141,15 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(Tag.a);
 	}
 	
-	public void printHref(String href,String title) throws SAXException {
+	public void printHref(String href,String title) throws IOException {
 		printHref(href,title,title);
 	}
 	
-	public void printHref(String href,String title,String text) throws SAXException {
+	public void printHref(String href,String title,String text) throws IOException {
 		printHref(href,title,text,null);
 	}
 	
-	public void printHref(String href,String title,String text,String spanClass) throws SAXException {
+	public void printHref(String href,String title,String text,String spanClass) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "href", "", "", href);
 		if (title!=null) {
@@ -164,11 +170,11 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(Tag.a);
 	}
 	
-	public void printTagCharacters(Tag tag,String text,String tagClass) throws SAXException {
+	public void printTagCharacters(Tag tag,String text,String tagClass) throws IOException {
 		printTagCharacters(tag,text,tagClass,null);
 	}
 	
-	public void printTagCharacters(Tag tag,String text,String tagClass,String tagId) throws SAXException {
+	public void printTagCharacters(Tag tag,String text,String tagClass,String tagId) throws IOException {
 		printTagStart(tag,tagClass,tagId,null);
 		if (text==null) {
 			text = " ";
@@ -177,24 +183,44 @@ public class ContentWriterHtml extends ContentWriterTagWrapper<ContentWriterHtml
 		printTagEnd(tag);
 	}
 
+	public Closeable printTag(Tag tag, String tagClass) throws IOException {
+		return printTag(tag,tagClass,null,null);
+	}
 	
-	public void printTagStart(Tag tag,String tagClass) throws SAXException {
+	public Closeable printTag(Tag tag, Enum<?> tagClassEnum) throws IOException {
+		return printTag(tag,tagClassEnum,null);
+	}
+	
+	public Closeable printTag(Tag tag, Enum<?> tagClassEnum, String tagId) throws IOException {
+		return printTag(tag,tagClassEnum,tagId,null);
+	}
+	
+	public Closeable printTag(Tag tag, Enum<?> tagClassEnum, String tagId, String typeId) throws IOException {
+		return printTag(tag,tagClassEnum.name(),tagId,typeId);
+	}
+	
+	public Closeable printTag(Tag tag, String tagClass, String tagId, String typeId) throws IOException {
+		printTagStart(tag,tagClass,tagId,typeId);
+		return wrapClosable(() -> printTagEnd(tag));
+	}
+	
+	public void printTagStart(Tag tag, String tagClass) throws IOException {
 		printTagStart(tag,tagClass,null,null);
 	}
 	
-	public void printTagStart(Tag tag,Enum<?> tagClassEnum) throws SAXException {
+	public void printTagStart(Tag tag, Enum<?> tagClassEnum) throws IOException {
 		printTagStart(tag,tagClassEnum,null);
 	}
 	
-	public void printTagStart(Tag tag,Enum<?> tagClassEnum,String tagId) throws SAXException {
+	public void printTagStart(Tag tag, Enum<?> tagClassEnum, String tagId) throws IOException {
 		printTagStart(tag,tagClassEnum,tagId,null);
 	}
 	
-	public void printTagStart(Tag tag,Enum<?> tagClassEnum,String tagId,String typeId) throws SAXException {
+	public void printTagStart(Tag tag, Enum<?> tagClassEnum, String tagId, String typeId) throws IOException {
 		printTagStart(tag,tagClassEnum.name(),tagId,typeId);
 	}
 	
-	public void printTagStart(Tag tag,String tagClass,String tagId,String typeId) throws SAXException {
+	public void printTagStart(Tag tag, String tagClass, String tagId, String typeId) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		if (tagId!=null && tagId.length()>0) {
 			atts.addAttribute("", "id", "", "", tagId);

nx01-x4o-o2o/src/main/java/org/x4o/o2o/io/ContentWriterXsd.java

@@ -22,13 +22,13 @@
  */
 package	org.x4o.o2o.io;
 
+import java.io.IOException;
 import java.io.Writer;
 
 import org.x4o.o2o.PropertyConfig;
 import org.x4o.o2o.io.sax3.ContentWriterTagWrapper;
 import org.x4o.o2o.io.sax3.ContentWriterXml;
 import org.x4o.o2o.io.sax3.XMLConstants;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 /**
@@ -47,14 +47,14 @@ public class ContentWriterXsd extends ContentWriterTagWrapper<ContentWriterXsd.T
 		return getContentWriterWrapped().getPropertyConfig();
 	}
 	
-	public void printXsdImport(String namespace,String schemaLocation) throws SAXException {
+	public void printXsdImport(String namespace,String schemaLocation) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute ("", "namespace", "", "", namespace);
 		atts.addAttribute ("", "schemaLocation", "", "", schemaLocation);
 		printTagStartEnd(Tag._import, atts);
 	}
 	
-	public void printXsdDocumentation(String description) throws SAXException {
+	public void printXsdDocumentation(String description) throws IOException {
 		if (description==null) {
 			return;
 		}
@@ -67,7 +67,7 @@ public class ContentWriterXsd extends ContentWriterTagWrapper<ContentWriterXsd.T
 		printTagEnd(Tag.annotation);
 	}
 	
-	public void printXsdElementAttribute(String name,String type,String description) throws SAXException {
+	public void printXsdElementAttribute(String name,String type,String description) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute ("", "name", "", "", name);
 		atts.addAttribute ("", "type", "", "", type);

nx01-x4o-o2o/src/main/java/org/x4o/o2o/io/sax3/ContentCloseable.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2004-2014, Willem Cazander
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted provided
+ * that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this list of conditions and the
+ *   following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
+ *   the following disclaimer in the documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package	org.x4o.o2o.io.sax3;
+
+import java.io.IOException;
+
+
+/**
+ * Functional closable callback for indenting api flow.
+ * 
+ * @author Willem Cazander
+ * @version 1.0 Jan 17, 2025
+ */
+@FunctionalInterface
+public interface ContentCloseable {
+	
+	void closeTag() throws IOException;
+}

nx01-x4o-o2o/src/main/java/org/x4o/o2o/io/sax3/ContentWriterTag.java

@@ -22,8 +22,9 @@
  */
 package	org.x4o.o2o.io.sax3;
 
+import java.io.IOException;
+
 import org.xml.sax.Attributes;
-import org.xml.sax.SAXException;
 
 /**
  * ContentWriterTag writes enum tags as xml.
@@ -35,23 +36,23 @@ public interface ContentWriterTag<TAG extends Enum<?>> {
 	
 	String getTagNamespaceUri();
 	
-	void startDocument() throws SAXException;
+	void startDocument() throws IOException;
 	
-	void endDocument() throws SAXException;
+	void endDocument() throws IOException;
 	
-	void printTagStartEnd(TAG tag) throws SAXException;
+	void printTagStartEnd(TAG tag) throws IOException;
 	
-	void printTagStartEnd(TAG tag,Attributes atts) throws SAXException;
+	void printTagStartEnd(TAG tag,Attributes atts) throws IOException;
 	
-	void printTagStart(TAG tag) throws SAXException;
+	void printTagStart(TAG tag) throws IOException;
 	
-	void printTagStart(TAG tag,Attributes atts) throws SAXException;
+	void printTagStart(TAG tag,Attributes atts) throws IOException;
 	
-	void printTagEnd(TAG tag) throws SAXException;
+	void printTagEnd(TAG tag) throws IOException;
 	
-	void printTagCharacters(TAG tag,String text) throws SAXException;
+	void printTagCharacters(TAG tag,String text) throws IOException;
 	
-	void printCharacters(String text) throws SAXException;
+	void printCharacters(String text) throws IOException;
 	
-	void printComment(String text) throws SAXException;
+	void printComment(String text) throws IOException;
 }

nx01-x4o-o2o/src/main/java/org/x4o/o2o/io/sax3/ContentWriterTagWrapper.java

@@ -22,6 +22,9 @@
  */
 package	org.x4o.o2o.io.sax3;
 
+import java.io.Closeable;
+import java.io.IOException;
+
 import org.xml.sax.Attributes;
 import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
@@ -66,35 +69,60 @@ public class ContentWriterTagWrapper<TAG extends Enum<?>,TAG_WRITER extends Cont
 		return tagNamespaceUri;
 	}
 	
-	public void startDocument() throws SAXException {
+	public void startDocument() throws IOException {
+		try {
 			contentWriter.startDocument();
 			contentWriter.startPrefixMapping(tagNamespacePrefix, getTagNamespaceUri());
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
-	public void endDocument() throws SAXException {
+	public void endDocument() throws IOException {
+		try {
 			contentWriter.endDocument();
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
-	public void printTagStartEnd(TAG tag, Attributes atts) throws SAXException {
+	public Closeable printTag(TAG tag) throws IOException {
+		return printTag(tag, EMPTY_ATTRIBUTES);
+	}
+	
+	public Closeable printTag(TAG tag, Attributes atts) throws IOException {
+		printTagStart(tag,atts);
+		return wrapClosable(() -> printTagEnd(tag));
+	}
+	
+	public void printTagStartEnd(TAG tag, Attributes atts) throws IOException {
 		printTagStart(tag,atts);
 		printTagEnd(tag);
 	}
 	
-	public void printTagStartEnd(TAG tag) throws SAXException {
+	public void printTagStartEnd(TAG tag) throws IOException {
 		printTagStart(tag);
 		printTagEnd(tag);
 	}
 	
-	public void printTagStart(TAG tag) throws SAXException {
+	public void printTagStart(TAG tag) throws IOException {
 		printTagStart(tag,EMPTY_ATTRIBUTES);
 	}
 	
-	public void printTagStart(TAG tag, Attributes atts) throws SAXException {
+	public void printTagStart(TAG tag, Attributes atts) throws IOException {
+		try {
 			contentWriter.startElement (getTagNamespaceUri(), toTagString(tag), "", atts);
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
-	public void printTagEnd(TAG tag) throws SAXException {
+	public void printTagEnd(TAG tag) throws IOException {
+		try {
 			contentWriter.endElement (getTagNamespaceUri(),toTagString(tag) , "");
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
 	private String toTagString(TAG tag) {
@@ -106,7 +134,7 @@ public class ContentWriterTagWrapper<TAG extends Enum<?>,TAG_WRITER extends Cont
 		return result;
 	}
 	
-	public void printTagCharacters(TAG tag, String text) throws SAXException {
+	public void printTagCharacters(TAG tag, String text) throws IOException {
 		printTagStart(tag);
 		if (text==null) {
 			text = " ";
@@ -115,11 +143,29 @@ public class ContentWriterTagWrapper<TAG extends Enum<?>,TAG_WRITER extends Cont
 		printTagEnd(tag);
 	}
 	
-	public void printCharacters(String text) throws SAXException {
+	public void printCharacters(String text) throws IOException {
+		try {
 			contentWriter.characters(text);
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
 	}
 	
-	public void printComment(String text) throws SAXException {
+	public void printComment(String text) throws IOException {
+		try {
 			contentWriter.comment(text);
+		} catch (SAXException e) {
+			throw new IOException(e);
+		}
+	}
+	
+	protected Closeable wrapClosable(ContentCloseable end) {
+		return new Closeable() {
+			
+			@Override
+			public void close() throws IOException {
+				end.closeTag();
+			}
+		};
 	}
 }

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/ApiDocContentPrinter.java

@@ -33,7 +33,6 @@ import org.x4o.o2o.tdoc.dom.ApiDocNavLink;
 import org.x4o.o2o.tdoc.dom.ApiDocNode;
 import org.x4o.o2o.tdoc.dom.ApiDocRemoteClass;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 /**
  * AbstractApiDocNodeWriter has some handy writer method for printing api doc html stuctures.
@@ -59,7 +58,7 @@ public interface ApiDocContentPrinter {
 		link.setHref(null);
 	}
 	
-	default void printApiTable(ApiDocWriteEvent<ApiDocNode> event,String name,Class<?> interfaceClass) throws SAXException, IOException {
+	default void printApiTable(ApiDocWriteEvent<ApiDocNode> event,String name,Class<?> interfaceClass) throws IOException {
 		printApiTable(
 				event.getEventObject(),
 				filterUserDataClassType(event.getEventObject(),interfaceClass),
@@ -68,7 +67,7 @@ public interface ApiDocContentPrinter {
 		);
 	}
 	
-	default void printApiTable(ApiDocNode parent,List<ApiDocNode> nodes,ApiDocContentWriter writer,String name) throws SAXException, IOException {
+	default void printApiTable(ApiDocNode parent,List<ApiDocNode> nodes,ApiDocContentWriter writer,String name) throws IOException {
 		if (nodes.isEmpty()) {
 			return;
 		}
@@ -94,19 +93,19 @@ public interface ApiDocContentPrinter {
 		return result;
 	}
 	
-	default void printApiTableBean(ApiDocWriteEvent<ApiDocNode> event,String name,String...skipProperties) throws SAXException, IOException {
+	default void printApiTableBean(ApiDocWriteEvent<ApiDocNode> event,String name,String...skipProperties) throws IOException {
 		printApiTableBean(event.getDoc(), event.getWriter(), event.getEventObject().getUserData(), name, skipProperties);
 	}
 	
-	default void printApiTableBean(ApiDoc doc,ApiDocContentWriter writer,Object bean,String name,String...skipProperties) throws SAXException, IOException {
+	default void printApiTableBean(ApiDoc doc,ApiDocContentWriter writer,Object bean,String name,String...skipProperties) throws IOException {
 		printApiTableBeanClass(doc, writer, bean, bean.getClass(), name, skipProperties);
 	}
 	
-	default void printApiTableBeanClass(ApiDocWriteEvent<ApiDocNode> event,Class<?> beanClass,String name,String...skipProperties) throws SAXException, IOException {
+	default void printApiTableBeanClass(ApiDocWriteEvent<ApiDocNode> event,Class<?> beanClass,String name,String...skipProperties) throws IOException {
 		printApiTableBeanClass(event.getDoc(), event.getWriter(), null,beanClass, name, skipProperties);
 	}
 	
-	private void printApiTableBeanClass(ApiDoc doc,ApiDocContentWriter writer,Object bean,Class<?> beanClass,String name,String...skipProperties) throws SAXException, IOException {
+	private void printApiTableBeanClass(ApiDoc doc,ApiDocContentWriter writer,Object bean,Class<?> beanClass,String name,String...skipProperties) throws IOException {
 		writer.docTableStart(name+" Properties", name+" properties overview.",ApiDocContentCss.overviewSummary);
 		writer.docTableHeader("Name", "Value");
 		for (Method m:beanClass.getMethods()) {
@@ -156,7 +155,7 @@ public interface ApiDocContentPrinter {
 		writer.docTableEnd();
 	}
 	
-	private String printValue(ApiDoc doc,ApiDocContentWriter writer,Object value) throws SAXException {
+	private String printValue(ApiDoc doc,ApiDocContentWriter writer,Object value) throws IOException {
 		if (value==null) {
 			return "null";
 		}

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/ApiDocContentWriter.java

@@ -29,7 +29,6 @@ import java.util.Date;
 import java.util.List;
 
 import org.x4o.o2o.io.ContentWriterHtml;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 /**
@@ -46,11 +45,11 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		super(out,encoding);
 	}
 	
-	public void docCommentGenerated() throws SAXException {
+	public void docCommentGenerated() throws IOException {
 		printComment("Generated by "+ApiDocContentWriter.class.getSimpleName()+" on "+new Date());
 	}
 	
-	public void docHtmlStart(String title,List<String> keywords,String pathPrefix) throws SAXException {
+	public void docHtmlStart(String title,List<String> keywords,String pathPrefix) throws IOException {
 		printDocType(DocType.HTML_4_TRANSITIONAL);
 		printComment("NewPage");
 		printHtmlStart("en");
@@ -79,7 +78,7 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printScriptNoDiv();
 	}
 	
-	public void docHtmlEnd(String copyright,String statsJS) throws SAXException {
+	public void docHtmlEnd(String copyright,String statsJS) throws IOException {
 		printTagStart(Tag.p,ApiDocContentCss.legalCopy);
 			printTagStart(Tag.small);
 			printCharacters(copyright);
@@ -92,7 +91,7 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printHtmlEnd();
 	}
 	
-	public void docNavBarAbout(String about) throws SAXException {
+	public void docNavBarAbout(String about) throws IOException {
 		printTagStart(Tag.div,ApiDocContentCss.aboutLanguage); // Print about language
 		printTagStart(Tag.em);
 		printTagStart(Tag.strong);
@@ -109,7 +108,7 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagEnd(Tag.div); 
 	}
 	
-	public void docPagePackageTitle(String title,String summary) throws SAXException {
+	public void docPagePackageTitle(String title,String summary) throws IOException {
 		printTagStart(Tag.div,ApiDocContentCss.header);
 			printTagCharacters(Tag.h1, title,"title");
 			printTagStart(Tag.div,ApiDocContentCss.docSummary);
@@ -122,14 +121,14 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagEnd(Tag.div);
 	}
 	
-	public void docPagePackageDescription(String title,String summary,String description) throws SAXException {
+	public void docPagePackageDescription(String title,String summary,String description) throws IOException {
 		printHrefNamed("package_description");
 		printTagCharacters(Tag.h2, title);
 		printTagCharacters(Tag.div, summary,ApiDocContentCss.block.name());
 		printCharacters(description);
 	}
 	
-	public void docPageClassStart(String title,String subTitle,Tag titleTag) throws SAXException {
+	public void docPageClassStart(String title,String subTitle,Tag titleTag) throws IOException {
 		printComment("======== START OF CLASS DATA ========");
 		printTagStart(Tag.div,ApiDocContentCss.header);
 		if (subTitle!=null) {
@@ -141,24 +140,24 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagEnd(Tag.div);
 	}
 	
-	public void docPageClassEnd() throws SAXException {
+	public void docPageClassEnd() throws IOException {
 		printComment("======== END OF CLASS DATA ========");
 	}
 	
-	public Closeable docPageContent() throws SAXException {
+	public Closeable docPageContent() throws IOException {
 		docPageContentStart();
-		return printAutoClosable(() -> docPageContentEnd());
+		return wrapClosable(() -> docPageContentEnd());
 	}
 	
-	public void docPageContentStart() throws SAXException {
+	public void docPageContentStart() throws IOException {
 		printTagStart(Tag.div,ApiDocContentCss.contentContainer);
 	}
 	
-	public void docPageContentEnd() throws SAXException {
+	public void docPageContentEnd() throws IOException {
 		printTagEnd(Tag.div);
 	}
 	
-	public void docPageBlockStart(String title,String namedLink,String comment) throws SAXException {
+	public void docPageBlockStart(String title,String namedLink,String comment) throws IOException {
 		if (comment!=null) {
 			printComment(comment);
 		}
@@ -167,27 +166,27 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagCharacters(Tag.h3, title);
 	}
 	
-	public void docPageBlockStart() throws SAXException {
+	public void docPageBlockStart() throws IOException {
 		printTagStart(Tag.ul,ApiDocContentCss.blockList);
 		printTagStart(Tag.li,ApiDocContentCss.blockList);
 	}
 	
-	public void docPageBlockEnd() throws SAXException {
+	public void docPageBlockEnd() throws IOException {
 		printTagEnd(Tag.li);
 		printTagEnd(Tag.ul);
 	}
 	
-	public void docPageBlockNext() throws SAXException {
+	public void docPageBlockNext() throws IOException {
 		printTagEnd(Tag.li);
 		printTagStart(Tag.li,ApiDocContentCss.blockList);
 	}
 	
-	public Closeable docTable(String tableTitle, String tableDescription, ApiDocContentCss tableCss) throws SAXException {
+	public Closeable docTable(String tableTitle, String tableDescription, ApiDocContentCss tableCss) throws IOException {
 		docTableStart(tableTitle, tableDescription, tableCss);
-		return printAutoClosable(() -> docTableEnd());
+		return wrapClosable(() -> docTableEnd());
 	}
 	
-	public void docTableStart(String tableTitle, String tableDescription, ApiDocContentCss tableCss) throws SAXException {
+	public void docTableStart(String tableTitle, String tableDescription, ApiDocContentCss tableCss) throws IOException {
 		isRowAlt = false;
 		AttributesImpl atts = new AttributesImpl();
 		if (tableCss != null) {
@@ -207,11 +206,11 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagEnd(Tag.caption);
 	}
 	
-	public void docTableEnd() throws SAXException {
+	public void docTableEnd() throws IOException {
 		printTagEnd(Tag.table);
 	}
 	
-	public void docTableHeader(String titleFirst,String titleLast) throws SAXException {
+	public void docTableHeader(String titleFirst,String titleLast) throws IOException {
 		printTagStart(Tag.tr);
 		AttributesImpl atts = new AttributesImpl();
 		if (titleLast==null) {
@@ -236,38 +235,38 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		printTagEnd(Tag.tr);
 	}
 	
-	public void docTableRowLink(String dataFirstHref,String dataFirst,String dataLast) throws SAXException, IOException {
+	public void docTableRowLink(String dataFirstHref,String dataFirst,String dataLast) throws IOException {
 		docTableRowHref(dataFirstHref,dataFirst,dataLast,null,false,false,false);
 	}
 	
-	public void docTableRow(String dataFirst,String dataLast) throws SAXException, IOException {
+	public void docTableRow(String dataFirst,String dataLast) throws IOException {
 		docTableRow(dataFirst,dataLast,null);
 	}
 	
-	public void docTableRow(String dataFirst,String dataLast,String dataBlock) throws SAXException, IOException {
+	public void docTableRow(String dataFirst,String dataLast,String dataBlock) throws IOException {
 		docTableRowHref(null,dataFirst,dataLast,dataBlock,false,false,false);
 	}
 	
-	public void docTableRowLastStart(String dataFirst,String dataFirstHref) throws SAXException, IOException {
+	public void docTableRowLastStart(String dataFirst,String dataFirstHref) throws IOException {
 		docTableRowHref(dataFirstHref,dataFirst,null,null,false,false,true);
 	}
 	
-	public void docTableRowLastEnd() throws SAXException {
+	public void docTableRowLastEnd() throws IOException {
 		printTagEnd(Tag.td);
 		printTagEnd(Tag.tr);
 	}
 	
-	public Closeable docTableRow() throws SAXException {
+	public Closeable docTableRow() throws IOException {
 		if (isRowAlt) {
 			printTagStart(Tag.tr,ApiDocContentCss.altColor);
 		} else {
 			printTagStart(Tag.tr,ApiDocContentCss.rowColor);
 		}
 		isRowAlt = !isRowAlt;
-		return printAutoClosable(() -> printTagEnd(Tag.tr));
+		return wrapClosable(() -> printTagEnd(Tag.tr));
 	}
 	
-	private void docTableRowHref(String dataFirstHref,String dataFirst,String dataLast,String dataBlock,boolean dataFirstCode,boolean dataLastCode,boolean skipLast) throws SAXException, IOException {
+	private void docTableRowHref(String dataFirstHref,String dataFirst,String dataLast,String dataBlock,boolean dataFirstCode,boolean dataLastCode,boolean skipLast) throws IOException {
 		Closeable tableRow = docTableRow();
 		if (dataLast==null) {
 			printTagStart(Tag.td,ApiDocContentCss.colOne);
@@ -359,24 +358,4 @@ public class ApiDocContentWriter extends ContentWriterHtml {
 		}
 		return prefix;
 	}
-	
-	/// TODO: move up to o2o writers
-	@FunctionalInterface
-	interface TagClose {
-		void closeTag() throws SAXException;
-	}
-	
-	private Closeable printAutoClosable(TagClose end) {
-		return new Closeable() {
-			
-			@Override
-			public void close() throws IOException {
-				try {
-					end.closeTag();
-				} catch (SAXException e) {
-					throw new IOException(e);
-				}
-			}
-		};
-	}
 }

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/ApiDocGenerator.java

@@ -76,7 +76,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 	 * @throws IOException	When file exception happens.
 	 * @throws SAXException when xml exception happens.
 	 */
-	public void write(ApiDoc doc,File basePath) throws IOException,SAXException {
+	public void write(ApiDoc doc,File basePath) throws IOException {
 		if (doc==null) {
 			throw new NullPointerException("Can't write with null ApiDoc.");
 		}
@@ -103,7 +103,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	private void writeNode(ApiDocNode node) throws SAXException, IOException {
+	private void writeNode(ApiDocNode node) throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(node.getUserData().getClass());
 		if (concept==null) {
 			concept = doc.findConceptChildByNode(node);
@@ -197,7 +197,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		return false;
 	}
 	
-	private void writeNodeTreePath(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	private void writeNodeTreePath(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		List<ApiDocNodeWriter> bodyWriterTreePath = findNodeBodyWriters(event.getEventObject(),ApiDocNodeBody.TREE_PATH);
 		if (bodyWriterTreePath.isEmpty()) {
 			defaultWriteTreePath(event.getEventObject(),event.getWriter());
@@ -208,11 +208,11 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	private void defaultWriteNodeDescription(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	private void defaultWriteNodeDescription(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		event.getWriter().printCharacters(event.getEventObject().getDescription());
 	}
 	
-	private void writeNodeDescription(ApiDocWriteEvent<ApiDocNode> event,boolean isPageMode) throws SAXException {
+	private void writeNodeDescription(ApiDocWriteEvent<ApiDocNode> event,boolean isPageMode) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		List<ApiDocNodeWriter> bodyWriterDescriptionLinks = findNodeBodyWriters(event.getEventObject(),ApiDocNodeBody.DESCRIPTION_LINKS);
 		List<ApiDocNodeWriter> bodyWriterDescriptionNode = findNodeBodyWriters(event.getEventObject(),ApiDocNodeBody.DESCRIPTION_NODE);
@@ -240,7 +240,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		writer.printTagEnd(Tag.div); // description
 	}
 	
-	private void writeNodeSummary(ApiDocWriteEvent<ApiDocNode> event,boolean isPageMode) throws SAXException, IOException {
+	private void writeNodeSummary(ApiDocWriteEvent<ApiDocNode> event,boolean isPageMode) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		List<ApiDocNodeWriter> bodyWriterSummary = findNodeBodyWriters(event.getEventObject(),ApiDocNodeBody.SUMMARY);
 		if (!isPageMode) {
@@ -267,7 +267,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	private void writeSubNavNamedHref(ApiDocWriteEvent<ApiDocNode> event,ApiDocNodeWriter writer) throws SAXException {
+	private void writeSubNavNamedHref(ApiDocWriteEvent<ApiDocNode> event,ApiDocNodeWriter writer) throws IOException {
 		String group = writer.getContentGroup();
 		String groupTypeKey = writer.getContentGroupType();
 		if (group==null | groupTypeKey==null) {
@@ -276,7 +276,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		event.getWriter().printHrefNamed(groupTypeKey+"_"+group);
 	}
 	
-	private void writeNodeDetails(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	private void writeNodeDetails(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		ApiDocContentWriter writer = event.getWriter();
 		List<ApiDocNodeWriter> bodyWriterDetail = findNodeBodyWriters(event.getEventObject(),ApiDocNodeBody.DETAIL);
 		if (bodyWriterDetail.isEmpty()) {
@@ -302,15 +302,11 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 
 	}
 	
-	protected void configNodeData(String prefixPath,File frame) throws SAXException {
+	protected void configNodeData(String prefixPath,File frame) throws IOException {
 		ApiDocNodeData conf = doc.getNodeData();
 		String framePath = null;
-		try {
 		String rootPath = new File(frame.getParentFile().getPath()+File.separatorChar+prefixPath).getCanonicalPath();
 		framePath = frame.getPath().substring(rootPath.length()+1);
-		} catch (IOException e) {
-			throw new SAXException(e);
-		}
 		conf.setPrefixPath(prefixPath);
 		conf.setFramePath(framePath);
 		
@@ -395,12 +391,12 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	public void defaultWriteSummary(ApiDocNode node,ApiDocContentWriter writer) throws SAXException, IOException {
+	public void defaultWriteSummary(ApiDocNode node,ApiDocContentWriter writer) throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(node.getUserData().getClass());
 		printApiTable(node, node.getNodes(), writer, concept.getName()+" Summary");
 	}
 	
-	public void defaultWriteTreePath(ApiDocNode node,ApiDocContentWriter writer) throws SAXException {
+	public void defaultWriteTreePath(ApiDocNode node,ApiDocContentWriter writer) throws IOException {
 		if (node.getParent()==null) {
 			return; // no tree for root
 		}
@@ -409,7 +405,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		defaultWriteTreePathWalker(rootPath.iterator(),writer,rootPath.size());
 	}
 	
-	private void defaultWriteTreePathWalker(Iterator<ApiDocNode> nodes,ApiDocContentWriter writer,int linkPrefixCount) throws SAXException {
+	private void defaultWriteTreePathWalker(Iterator<ApiDocNode> nodes,ApiDocContentWriter writer,int linkPrefixCount) throws IOException {
 		if (nodes.hasNext()==false) {
 			return;
 		} 
@@ -450,7 +446,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		result.add(node);
 	}
 	
-	private ApiDocContentWriter createContentWriter(File outputFile) throws SAXException {
+	private ApiDocContentWriter createContentWriter(File outputFile) throws IOException {
 		String encoding = XMLConstants.XML_DEFAULT_ENCODING;
 		try {
 			Writer out = new OutputStreamWriter(new FileOutputStream(outputFile), encoding);
@@ -459,11 +455,11 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 			result.getPropertyConfig().setProperty(ContentWriterXml.OUTPUT_CHAR_TAB, "  ");
 			return result;
 		} catch (UnsupportedEncodingException e) {
-			throw new SAXException(e);
+			throw new IOException(e);
 		} catch (SecurityException e) {
-			throw new SAXException(e);
+			throw new IOException(e);
 		} catch (FileNotFoundException e) {
-			throw new SAXException(e);
+			throw new IOException(e);
 		}
 	}
 	
@@ -611,7 +607,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		writeFileString(css,basePath,"resources","stylesheet.css");
 	}
 	
-	private void writeHeader(ApiDocContentWriter writer,String resourcePrefix,String title) throws SAXException {
+	private void writeHeader(ApiDocContentWriter writer,String resourcePrefix,String title) throws IOException {
 		writer.printTagStart(Tag.head);
 			writer.docCommentGenerated();
 			writer.printHeadMetaContentType();
@@ -633,7 +629,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 			"}\n";
 	
 	
-	public void writeIndex() throws SAXException {
+	public void writeIndex() throws IOException {
 		File outputFile = createOutputPathFile(basePath,"index.html");
 		ApiDocContentWriter writer = createContentWriter(outputFile);
 		try {
@@ -705,7 +701,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	public void writeOverviewFrame() throws SAXException {
+	public void writeOverviewFrame() throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(doc.getFrameNavConceptClass());
 		ApiDocConcept conceptParent = concept.getParent();
 		List<ApiDocNode> nodes = new ArrayList<ApiDocNode>(50);
@@ -753,7 +749,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	public void writeAllFrameNav(boolean isFrame) throws SAXException {
+	public void writeAllFrameNav(boolean isFrame) throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(doc.getFrameNavConceptClass());
 		if (isFrame) {
 			writeAllFrameNav("",true,null,"all"+concept.getId()+"-frame.html");
@@ -762,7 +758,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	private void writeAllFrameNavNode(ApiDocNode node) throws SAXException {
+	private void writeAllFrameNavNode(ApiDocNode node) throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(doc.getFrameNavConceptClass());
 		ApiDocConcept conceptParent = concept.getParent();
 		if (!conceptParent.getConceptClass().isAssignableFrom(node.getUserData().getClass())) {
@@ -778,7 +774,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		writeAllFrameNav(pathS,true,node,path.toArray(new String[]{}));
 	}
 	
-	private void writeAllFrameNav(String pathPrefix,boolean isFrame,ApiDocNode searchNode,String...fileName) throws SAXException {
+	private void writeAllFrameNav(String pathPrefix,boolean isFrame,ApiDocNode searchNode,String...fileName) throws IOException {
 		ApiDocConcept concept = doc.findConceptByClass(doc.getFrameNavConceptClass());
 		//ApiDocConcept conceptParent = concept.getParent();
 		List<ApiDocNode> nodes = new ArrayList<ApiDocNode>(50);
@@ -864,7 +860,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		}
 	}
 	
-	private void writePage(ApiDocPage page) throws SAXException, IOException {
+	private void writePage(ApiDocPage page) throws IOException {
 		File outputFile = createOutputPathFile(basePath,page.getId()+".html");
 		ApiDocContentWriter writer = createContentWriter(outputFile);
 		String pathPrefix = "";
@@ -979,7 +975,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		return outputFile;
 	}
 	
-	private void docNavBar(ApiDocContentWriter writer,boolean isTop,ApiDocConcept concept,ApiDocNode node) throws SAXException {
+	private void docNavBar(ApiDocContentWriter writer,boolean isTop,ApiDocConcept concept,ApiDocNode node) throws IOException {
 		ApiDocNodeData conf = doc.getNodeData();
 		String pathPrefix = conf.getPrefixPath();
 		String barComment = "TOP";
@@ -1125,7 +1121,7 @@ public class ApiDocGenerator implements ApiDocContentPrinter {
 		writer.printComment("========= END OF "+barComment+" NAVBAR =======");
 	}
 	
-	private void docNavBarListItemHref(ApiDocContentWriter writer,String href,String title,String text,String cssClass,String spanCss,String linkSpace) throws SAXException {
+	private void docNavBarListItemHref(ApiDocContentWriter writer,String href,String title,String text,String cssClass,String spanCss,String linkSpace) throws IOException {
 		writer.printTagStart(Tag.li,cssClass);
 		writer.printHref(href,title,text,spanCss);
 		writer.printCharacters(linkSpace);

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/ApiDocNodeWriterBean.java

@@ -22,6 +22,7 @@
  */
 package org.x4o.o2o.tdoc;
 
+import java.io.IOException;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
 import java.util.List;
@@ -31,7 +32,6 @@ import org.x4o.o2o.tdoc.dom.ApiDocNode;
 import org.x4o.o2o.tdoc.dom.ApiDocNodeBody;
 import org.x4o.o2o.tdoc.dom.ApiDocNodeWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 /**
  * ApiDocNodeWriterBean wraps the ApiDocNodeWriterEvent to a single method of a bean.
@@ -97,13 +97,13 @@ public class ApiDocNodeWriterBean implements ApiDocNodeWriter {
 		}
 	}
 	
-	public void writeNodeContent(ApiDocWriteEvent<ApiDocNode> event) throws SAXException {
+	public void writeNodeContent(ApiDocWriteEvent<ApiDocNode> event) throws IOException {
 		Class<?> beanClass = getBean().getClass();
 		try {
 			Method methodBean = beanClass.getMethod(getMethod(), new Class[]{ApiDocWriteEvent.class});
 			methodBean.invoke(getBean(), new Object[]{event});
 		} catch (Exception e) {
-			throw new SAXException(e);
+			throw new IOException(e);
 		}
 	}
 	

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/ApiDocWriter.java

@@ -107,14 +107,10 @@ public class ApiDocWriter {
 	 * @throws ElementException	Is thrown when error is done.
 	 */
 	public void writeDocumentation() throws IOException {
-		try {
 		File basePath = propertyConfig.getPropertyFile(OUTPUT_PATH);
 		ApiDocGenerator writer = new ApiDocGenerator();
 		ApiDoc doc = buildLanguageDoc();
 		writer.write(doc, basePath);
-		} catch (SAXException e) {
-			throw new IOException(e);
-		}
 	}
 	
 	/**

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/DefaultPageWriterHelp.java

@@ -22,13 +22,14 @@
  */
 package org.x4o.o2o.tdoc;
 
+import java.io.IOException;
+
 import org.x4o.o2o.io.ContentWriterHtml.Tag;
 import org.x4o.o2o.tdoc.dom.ApiDoc;
 import org.x4o.o2o.tdoc.dom.ApiDocConcept;
 import org.x4o.o2o.tdoc.dom.ApiDocPage;
 import org.x4o.o2o.tdoc.dom.ApiDocPageWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 /**
  * DefaultPageWriterHelp creates the help page content.
@@ -42,7 +43,7 @@ public class DefaultPageWriterHelp implements ApiDocPageWriter {
 		return new ApiDocPage("doc-help","Help","This help file applies to the API documentation generated using the standard format.",new DefaultPageWriterHelp());
 	}
 	
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 		ApiDoc doc = e.getDoc();
 		//ApiDocPage page = e.getEvent();
 		ApiDocContentWriter writer = e.getWriter();

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/DefaultPageWriterIndexAll.java

@@ -22,11 +22,12 @@
  */
 package org.x4o.o2o.tdoc;
 
+import java.io.IOException;
+
 import org.x4o.o2o.io.ContentWriterHtml.Tag;
 import org.x4o.o2o.tdoc.dom.ApiDocPage;
 import org.x4o.o2o.tdoc.dom.ApiDocPageWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 /**
  * DefaultPageWriterIndexAll creates the index-all page content.
@@ -40,7 +41,7 @@ public class DefaultPageWriterIndexAll implements ApiDocPageWriter {
 		return new ApiDocPage("index-all","Index","Index of all api ketwords.",new DefaultPageWriterIndexAll());
 	}
 	
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 	//	ApiDoc doc = e.getDoc();
 	//	ApiDocPage page = e.getEvent();
 		ApiDocContentWriter writer = e.getWriter();

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/DefaultPageWriterTree.java

@@ -22,13 +22,14 @@
  */
 package org.x4o.o2o.tdoc;
 
+import java.io.IOException;
+
 import org.x4o.o2o.io.ContentWriterHtml.Tag;
 import org.x4o.o2o.tdoc.dom.ApiDoc;
 import org.x4o.o2o.tdoc.dom.ApiDocNode;
 import org.x4o.o2o.tdoc.dom.ApiDocPage;
 import org.x4o.o2o.tdoc.dom.ApiDocPageWriter;
 import org.x4o.o2o.tdoc.dom.ApiDocWriteEvent;
-import org.xml.sax.SAXException;
 
 /**
  * DefaultPageWriterTree creates the default tree overview page content.
@@ -50,7 +51,7 @@ public class DefaultPageWriterTree implements ApiDocPageWriter {
 		return rootNode;
 	}
 	
-	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException {
+	public void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException {
 		ApiDoc doc = e.getDoc();
 		ApiDocPage page = e.getEventObject();
 		ApiDocContentWriter writer = e.getWriter();
@@ -61,7 +62,7 @@ public class DefaultPageWriterTree implements ApiDocPageWriter {
 		writer.docPageContentEnd();
 	}
 	
-	private void writeTree(ApiDoc doc, ApiDocNode node,ApiDocContentWriter writer,String pathPrefix) throws SAXException {
+	private void writeTree(ApiDoc doc, ApiDocNode node,ApiDocContentWriter writer,String pathPrefix) throws IOException {
 		
 		for (Class<?> excludeClass:doc.getTreeNodeClassExcludes()) {
 			if (excludeClass.isAssignableFrom(node.getUserData().getClass())) {

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/dom/ApiDocNodeWriter.java

@@ -22,10 +22,9 @@
  */
 package org.x4o.o2o.tdoc.dom;
 
+import java.io.IOException;
 import java.util.List;
 
-import org.xml.sax.SAXException;
-
 /**
  * ApiDocNodeWriter are the parts from which the content body is created.
  * 
@@ -40,5 +39,5 @@ public interface ApiDocNodeWriter {
 	String getContentGroup();
 	String getContentGroupType();
 	
-	void writeNodeContent(ApiDocWriteEvent<ApiDocNode> e) throws SAXException;
+	void writeNodeContent(ApiDocWriteEvent<ApiDocNode> e) throws IOException;
 }

nx01-x4o-o2o/src/main/java/org/x4o/o2o/tdoc/dom/ApiDocPageWriter.java

@@ -24,8 +24,6 @@ package org.x4o.o2o.tdoc.dom;
 
 import java.io.IOException;
 
-import org.xml.sax.SAXException;
-
 /**
  * ApiDocPageWriter writes a page content part.
  * 
@@ -34,5 +32,5 @@ import org.xml.sax.SAXException;
  */
 public interface ApiDocPageWriter {
 	
-	void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws SAXException, IOException;
+	void writePageContent(ApiDocWriteEvent<ApiDocPage> e) throws IOException;
 }

nx01-zerofungus-server/src/main/java/love/distributedrebirth/nx01/zerofungus/server/web/WarpCorePlasmaInspectorServlet.java

@@ -35,7 +35,6 @@ import org.x4o.o2o.io.sax3.ContentWriter;
 import org.x4o.o2o.io.sax3.ContentWriterTagWrapper;
 import org.x4o.o2o.io.sax3.ContentWriterXml;
 import org.x4o.o2o.io.sax3.xdbx.XDBXWriterXml;
-import org.xml.sax.SAXException;
 import org.xml.sax.helpers.AttributesImpl;
 
 import jakarta.servlet.http.HttpServlet;
@@ -81,7 +80,7 @@ public class WarpCorePlasmaInspectorServlet extends HttpServlet {
 				atts.addAttribute("", "ᒡᒢᑊᒻᒻᓫᔿ", "", "", "𑀳𑁂𑀮𑀺𑀉𑁄𑀤𑁄𑀭𑁂𑀡𑀪𑀸𑀕");
 			}
 			if ("true".equalsIgnoreCase(request.getParameter("___error"))) {
-				throw new SAXException("Oops triggered a ___error");
+				throw new IOException("Oops triggered a ___error");
 			}
 			writer.printTagStart(Tag.reactor, atts);
 			for (WarpReactPlasma slot : slots) {
@@ -89,12 +88,12 @@ public class WarpCorePlasmaInspectorServlet extends HttpServlet {
 			}
 			writer.printTagEnd(Tag.reactor);
 			writer.endDocument();
-		} catch (SAXException e) {
+		} catch (IOException e) {
 			throw new IllegalStateException(e);
 		}
 	}
 
-	private void printSlotContract(ContentWriterInspector writer, WarpCorePlasmaIntermixChamber contract) throws SAXException {
+	private void printSlotContract(ContentWriterInspector writer, WarpCorePlasmaIntermixChamber contract) throws IOException {
 		AttributesImpl atts = new AttributesImpl();
 		atts.addAttribute("", "path", "", "", contract.getSlot().getSlotPath());
 		writer.printTagStart(Tag.slot, atts);
@@ -105,7 +104,7 @@ public class WarpCorePlasmaInspectorServlet extends HttpServlet {
 		writer.printTagEnd(Tag.slot);
 	}
 
-	private void printClaims(ContentWriterInspector writer, Tag tag, List<Class<?>> clazzes) throws SAXException {
+	private void printClaims(ContentWriterInspector writer, Tag tag, List<Class<?>> clazzes) throws IOException {
 		if (clazzes.isEmpty()) {
 			return;
 		}
@@ -119,7 +118,7 @@ public class WarpCorePlasmaInspectorServlet extends HttpServlet {
 		writer.printTagEnd(tag);
 	}
 
-	private void printRequireServices(ContentWriterInspector writer, List<Class<?>> clazzes) throws SAXException {
+	private void printRequireServices(ContentWriterInspector writer, List<Class<?>> clazzes) throws IOException {
 		if (clazzes.isEmpty()) {
 			return;
 		}
@@ -130,7 +129,7 @@ public class WarpCorePlasmaInspectorServlet extends HttpServlet {
 		writer.printTagEnd(Tag.requireServices);
 	}
 
-	private void printRequireSlots(ContentWriterInspector writer, List<WarpReactPlasma> slots) throws SAXException {
+	private void printRequireSlots(ContentWriterInspector writer, List<WarpReactPlasma> slots) throws IOException {
 		if (slots.isEmpty()) {
 			return;
 		}

src/site/wigiti/README-x4o.md

@@ -12,7 +12,7 @@ X4O is very old code from pre 1.5 non-generics nice object java.
 - Remove some features to ease "write" and SAX4 support
 - Move all XML uri's to oasis style thus replacing all internal http namespace locators
 - Add jaxb annotation support to define a x4o language and have XSD and documention tools
-- Remove SAXException and replace with IOException for auto close tag printer API support
+- (DONE) Remove SAXException and replace with IOException for auto close tag printer API support
 - Cleanup old todo/ideas from below
 
 ## OLD todo