[Xmlunit-general] Strange XMLUnit error

[Erwin C. <erw...@am...>]

Hi, I hope someone can help me.  I keep getting this error when I try to do
an assertXMLEqual.

java.lang.NoSuchMethodError
     at
org.apache.crimson.tree.AttributeSet.createAttributeSet2(AttributeSet.java:174)
     at
org.apache.crimson.tree.XmlDocumentBuilderNS.startElement(XmlDocumentBuilderNS.java:90)
     at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1488)
     at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)
     at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)
     at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)
     at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)
     at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)
     at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)
     at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:500)
     at org.apache.crimson.parser.Parser2.parse(Parser2.java:305)
     at
org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442)
     at
org.apache.crimson.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:185)
     at org.custommonkey.xmlunit.XMLUnit.buildDocument(Unknown Source)
     at org.custommonkey.xmlunit.Diff.<init>(Unknown Source)
     at org.custommonkey.xmlunit.Diff.<init>(Unknown Source)
     at org.custommonkey.xmlunit.XMLTestCase.compareXML(Unknown Source)
     at org.custommonkey.xmlunit.XMLTestCase.assertXMLEqual(Unknown Source)
     at
com.ams.acquiline.junittest.vendortest.VendorQueryTest.testVendorQuery(VendorQueryTest.java:85)

Any ideas?  Thanks a lot!

-Erwin