need help java lang

is there anything that can help me about java lang, like this ?
but my server all ON ..

=== AUTH ===
Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at com.goldhuman.xml.parser.startElement(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:533)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:878)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1693)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1242)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:176)
at com.goldhuman.xml.parser.parse(Unknown Source)
at com.goldhuman.xml.parser.parse(Unknown Source)
at authd.main(Unknown Source)
=== DONE! ===

how to solve a problem like this

I love it when people post things like this when it obviously tells you what is wrong... (usually in first line)

Code:

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Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file

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Update Java... the class file was built against a newer version of Java then you have.

Quote:

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Originally Posted by das7002

I love it when people post things like this when it obviously tells you what is wrong... (usually in first line)

Code:

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Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file

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Update Java... the class file was built against a newer version of Java then you have.

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xml pwAdmin mode if I still work if I update java ??
i am use jdk1.5.0_21 .

If you get the latest pwAdmin it should...

...there's nothing wrong with having two versions of java on your server. one for authd, one for pwAdmin. I use 1.5.0_21 for pwAdmin and 1.6.0_12 for authd...

just make sure u make it point to the correct path for every different java.

exactly :):