Hi
I'm getting an AssertionError when calling toNextSelection on a cursor. The
code is in a custom tag used on a JSP, and works happily for the rest of the
application. However, on one instance, we get the AssertionError.
My code does the following:
XmlCursor cursor = xmlObject.newCursor();
try {
cursor.selectPath(XmlBeanUtils.getNamespaceDeclaration() +
"descendant-or-self::" + xPath);
if (cursor.toNextSelection()) {
....
}
} finally {
cursor.dispose();
}
The application is running on Weblogic 9.2 using XmlBeans 2.3.0
The top of the error stack is as follows: (I can't post a full stack due to
network security reasons so I have to type this by hand)
java.lang.AssertionError
at org.apache.xmlbeans.impl.store.Cur.moveTo(Cur.java:442)
at org.apache.xmlbeans.impl.store.Cur.next(Cur.java:1479)
at org.apache.xmlbeans.impl.store.Cursor._toNextToken(Cursor.java:373)
at
org.apache.xmlbeans.impl.store.TokenIteratorImpl._fetchNext(TokenIteratorImpl.java:155)
at
org.apache.xmlbeans.impl.store.TokenIteratorImpl.fetchNext(TokenIteratorImpl.java:99)
at
weblogic.xml.query.iterators.GenericIterator.hasNext(GenericIterator.java:134)
...
at
org.apache.xmlbeans.impl.store.XqrlImpl$XqrlPathEngine.nextToken(XqrlImpl.java:124)
at
org.apache.xmlbeans.impl.store.XqrlImpl$XqrlPathEngine.next(XqrlImpl.java:142)
...
at
org.apache.xmlbeans.impl.store.Cursor.toNextSelection(Cursor.java:2670)
As a workaround, we can call toNextSelection, catch the AssertionError, and
then call toNextSelection again which then works.
>From initial inspection, it appears that the Cursor is not in the correct
state (REGISTERED or EMBEDDED) but is instead POOLED.
>From debugging, it starts in the correct state, and after numerous passes of
line 442, the state eventually goes to POOLED and hence the AssertionError
is thrown.
I'm guessing this is a bug internal to XmlBeans?
Any ideas much appreciated!
Thanks, Paul
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