1. Download the DSML v2.0 service providers from http://java.sun.com/developer/earlyAccess/jndi/

2. Following the Echo example to get a snapshot of the tutorial.xml directory data; save it to another file, say echo.xml.

3. Replace tutorial.xml by echo.xml (i.e. cp echo.xml tutorial.xml).

4. Run the Echo example again, but it now throws exception:

javax.xml.transform.TransformerException: org.apache.crimson.tree.DomEx: NAMESPACE_ERR: Attempt to create or change an object in a way which is incorrect with regard to namespaces.
        at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:469)
        at com.sun.jndi.dsmlv2.util.DsmlIoUtil.readTree(DsmlIoUtil.java:93)
        at com.sun.jndi.dsmlv2.response.DsmlResponseCtxFactory.getInitialContext(DsmlResponseCtxFactory.java:78)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
        at javax.naming.InitialContext.init(InitialContext.java:219)
        at javax.naming.InitialContext.<init>(InitialContext.java:175)
        at Echo.main(Echo.java:17)
Caused by: org.apache.crimson.tree.DomEx: NAMESPACE_ERR: Attempt to create or change an object in a way which is incorrect with regard to namespaces.
        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:691)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java:337)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448) at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:452)
        ... 7 more
---------
org.apache.crimson.tree.DomEx: NAMESPACE_ERR: Attempt to create or change an object in a way which is incorrect with regard to namespaces.
        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:691)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java:337)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448) at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:452)
        at com.sun.jndi.dsmlv2.util.DsmlIoUtil.readTree(DsmlIoUtil.java:93)
        at com.sun.jndi.dsmlv2.response.DsmlResponseCtxFactory.getInitialContext(DsmlResponseCtxFactory.java:78)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
        at javax.naming.InitialContext.init(InitialContext.java:219)
        at javax.naming.InitialContext.<init>(InitialContext.java:175)
        at Echo.main(Echo.java:17)
---------
org.apache.crimson.tree.DomEx: NAMESPACE_ERR: Attempt to create or change an object in a way which is incorrect with regard to namespaces.
        at org.apache.crimson.tree.ElementNode2.checkArguments(ElementNode2.java:213)
        at org.apache.crimson.tree.XmlDocument.createElementNS(XmlDocument.java:844)
        at org.apache.xml.utils.DOMBuilder.startElement(DOMBuilder.java:306)
        at org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1020)
        at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1672)
        at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:667)
        at org.apache.crimson.parser.Parser2.parse(Parser2.java:337)
        at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:448) at org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:452)
        at com.sun.jndi.dsmlv2.util.DsmlIoUtil.readTree(DsmlIoUtil.java:93)
        at com.sun.jndi.dsmlv2.response.DsmlResponseCtxFactory.getInitialContext(DsmlResponseCtxFactory.java:78)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
        at javax.naming.InitialContext.init(InitialContext.java:219)
        at javax.naming.InitialContext.<init>(InitialContext.java:175)
        at Echo.main(Echo.java:17)
Exception in thread "main" javax.naming.ConfigurationException: DSML document missing; supply file in java.naming.provider.url property or supply DOM tree in com.sun.jndi.dsmlv2.batchResponse property.
        at com.sun.jndi.dsmlv2.response.DsmlResponseCtxFactory.getInitialContext(DsmlResponseCtxFactory.java:86)
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:662)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243)
        at javax.naming.InitialContext.init(InitialContext.java:219)
        at javax.naming.InitialContext.<init>(InitialContext.java:175)
        at Echo.main(Echo.java:17)

This is reproduced using JDK 1.4.2_09, but the exception could be different depending on which version of JAX* components (i.e. different versions of JDK) are used.