Unable to generate Selenium tests because of Xerces error

[wraithmonster]

I am working on this tutorial, but getting stuck when trying to create Selenium tests.

~.web roo> selenium test --controller ~.web.PizzaOrderController
Created SRC_MAIN_WEBAPP/selenium
Created SRC_MAIN_WEBAPP/selenium/test-pizzaorder.xhtml
Created SRC_MAIN_WEBAPP/selenium/test-suite.xhtml
Undo create SRC_MAIN_WEBAPP/selenium/test-suite.xhtml
Undo create SRC_MAIN_WEBAPP/selenium/test-pizzaorder.xhtml
Undo create SRC_MAIN_WEBAPP/selenium
com.sun.org.apache.xerces.internal.dom.DeferredCommentImpl cannot be cast to org.w3c.dom.Element

A person at this forum suggested removing Xerces from the classpath because Java 6 has its own XML parser based on Xerces. However, I haven't come across a clear way to remove something from the classpath, only setting it (which I think would be tedious each time).

UPDATE

Here is the full trace with "development mode":

roo> development mode
Development mode set to true
roo> selenium test --controller ~.web.PizzaOrderController
Created SRC_MAIN_WEBAPP/selenium
Created SRC_MAIN_WEBAPP/selenium/test-pizzaorder.xhtml
Created SRC_MAIN_WEBAPP/selenium/test-suite.xhtml
Undo create SRC_MAIN_WEBAPP/selenium/test-suite.xhtml
Undo create SRC_MAIN_WEBAPP/selenium/test-pizzaorder.xhtml
Undo create SRC_MAIN_WEBAPP/selenium
com.sun.org.apache.xerces.internal.dom.DeferredCommentImpl cannot be cast to org.w3c.dom.Element
java.lang.ClassCastException: com.sun.org.apache.xerces.internal.dom.DeferredCommentImpl cannot be cast to org.w3c.dom.Element
    at org.springframework.roo.addon.web.menu.MenuOperationsImpl.addMenuItem(MenuOperationsImpl.java:88)
    at org.springframework.roo.addon.web.selenium.SeleniumOperationsImpl.manageTestSuite(SeleniumOperationsImpl.java:185)
    at org.springframework.roo.addon.web.selenium.SeleniumOperationsImpl.generateTest(SeleniumOperationsImpl.java:140)
    at org.springframework.roo.addon.web.selenium.SeleniumCommands.generateTest(SeleniumCommands.java:35)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.springframework.roo.support.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:191)
    at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy$1.callback(ProcessManagerHostedExecutionStrategy.java:34)
    at org.springframework.roo.process.manager.internal.DefaultProcessManager.doTransactionally(DefaultProcessManager.java:169)
    at org.springframework.roo.process.manager.internal.DefaultProcessManager.execute(DefaultProcessManager.java:132)
    at org.springframework.roo.process.manager.ProcessManagerHostedExecutionStrategy.execute(ProcessManagerHostedExecutionStrategy.java:32)
    at org.springframework.roo.shell.AbstractShell.executeCommand(AbstractShell.java:158)
    at org.springframework.roo.shell.jline.JLineShell.promptLoop(JLineShell.java:200)
    at org.springframework.roo.shell.jline.JLineShell.run(JLineShell.java:126)
    at java.lang.Thread.run(Thread.java:619)

Does anyone know of a clear way to remove jars from the classpath? Has anyone encountered this problem before and solved it another way?

This question is also posted at StackOverflow.

[Ben Alex]

Can you try this with Java 6? Also could you try typing "development mode" then hitting enter before executing the command, so we can see the exception in more depth?

[wraithmonster]

Can you try this with Java 6? Also could you try typing "development mode" then hitting enter before executing the command, so we can see the exception in more depth?

Done - please see UPDATE above.

[whyBish]

It depends where it was loaded from. In your roo.bat or roo.sh in the launch: section add a -verbose flag to the java call, this should show information about where the classes are getting loaded from. Perhaps you've just got something in the endorsed directory or similar...

[Ben Alex]

Can you type 'backup' and attach the resulting ZIP file here so we can try it on one of our machines? Thanks. We need to verify the XPath expression at MenuOperationsImpl.java:88 is actually selecting the correct node.