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UnsupportedClassVersionError
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klessou
n00b
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Joined: 02 Sep 2006
Posts: 40
PostPosted: Mon Oct 23, 2006 7:34 am    Post subject: UnsupportedClassVersionError Reply with quote
Hello,

I have got an UnsupportedClassVersionError but I don't found the package who are compiled whith an incompatible VM.

Code:

>>> Emerging (1 of 1) dev-java/xerces-2.7.1 to /
 * Xerces-J-src.2.7.1.tar.gz MD5 ;-) ...                                                                              [ ok ] *

[...]

Xerces-J-src.2.7.1.tar.gz ;-) ...                                                                         [ ok ] * Using Generation-1 System VM: blackdown-jdk-1.4.2
>>> Unpacking source...
>>> Unpacking Xerces-J-src.2.7.1.tar.gz to /var/tmp/portage/xerces-2.7.1/work
tar: Un bloc zéro solitaire repéré à 19079
 * Applying xerces-2.7.1-gentoo.patch ...                                                                             [ ok ] * Applying xerces-2.7.1-no_dom3.patch ...                                                                            [ ok ]>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/xerces-2.7.1/work/xerces-2_7_1 ...
Buildfile: build.xml

BUILD FAILED
java.lang.UnsupportedClassVersionError: org/apache/xerces/jaxp/SAXParserFactoryImpl (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:93)
        at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:174)
        at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:87)
        at org.apache.tools.ant.util.JAXPUtils.newParserFactory(JAXPUtils.java:114)
        at org.apache.tools.ant.util.JAXPUtils.getNSParserFactory(JAXPUtils.java:100)
        at org.apache.tools.ant.util.JAXPUtils.getNamespaceXMLReader(JAXPUtils.java:163)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:193)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:140)
        at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:91)
        at org.apache.tools.ant.Main.runBuild(Main.java:653)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)


(java-check-environnement is "good".)
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moocha
Watchman
Watchman


Joined: 21 Oct 2003
Posts: 5722
PostPosted: Mon Oct 23, 2006 9:03 am    Post subject: Reply with quote
https://forums.gentoo.org/viewtopic-t-498880-highlight-unsupported+class+error.html
Please search before you post.
_________________
Military Commissions Act of 2006: http://tinyurl.com/jrcto

"Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety."
-- attributed to Benjamin Franklin
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klessou
n00b
n00b


Joined: 02 Sep 2006
Posts: 40
PostPosted: Mon Oct 23, 2006 7:05 pm    Post subject: Reply with quote
Quote:
Please search before you post.

Sorry I searched before post, but I forgot to say that java-1.5-fixer don't work.

Code:
>>> Emerging (1 of 1) dev-java/servletapi-2.4-r2 to /
[...]

BUILD FAILED
java.lang.UnsupportedClassVersionError: org/apache/xerces/jaxp/SAXParserFactoryImpl (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:93)
        at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:174)
        at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:87)
        at org.apache.tools.ant.util.JAXPUtils.newParserFactory(JAXPUtils.java:114)
        at org.apache.tools.ant.util.JAXPUtils.getNSParserFactory(JAXPUtils.java:100)
        at org.apache.tools.ant.util.JAXPUtils.getNamespaceXMLReader(JAXPUtils.java:163)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:193)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:140)
        at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:91)
        at org.apache.tools.ant.Main.runBuild(Main.java:653)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
[...]

>>> Emerging (1 of 1) dev-java/xml-commons-external-1.3.02 to /
[...]

BUILD FAILED
java.lang.UnsupportedClassVersionError: org/apache/xerces/jaxp/SAXParserFactoryImpl (Unsupported major.minor version 49.0)
        at java.lang.ClassLoader.defineClass0(Native Method)
        at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:251)
        at java.net.URLClassLoader.access$100(URLClassLoader.java:55)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:194)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:187)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:289)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:274)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:282)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
        at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:93)
        at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:174)
        at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:87)
        at org.apache.tools.ant.util.JAXPUtils.newParserFactory(JAXPUtils.java:114)
        at org.apache.tools.ant.util.JAXPUtils.getNSParserFactory(JAXPUtils.java:100)
        at org.apache.tools.ant.util.JAXPUtils.getNamespaceXMLReader(JAXPUtils.java:163)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:193)
        at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:140)
        at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:91)
        at org.apache.tools.ant.Main.runBuild(Main.java:653)
        at org.apache.tools.ant.Main.startAnt(Main.java:187)
        at org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)
        at org.apache.tools.ant.launch.Launcher.main(Launcher.java:67)
[...]

 * Failed to fix =dev-java/xml-commons-external-1.3.02
 * Putting it in the queue for next run
 * Detected a repeat run. Something is probably wrong.
 * Aborting...
 * There was a problem fixing all the broken packages!
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klessou
n00b
n00b


Joined: 02 Sep 2006
Posts: 40
PostPosted: Wed Oct 25, 2006 8:56 pm    Post subject: Reply with quote
For information i found the solution :

Xerces was not installed but :
java-config -p xerces-2 result was :
/usr/share/xerces-2/lib/xercesSamples.jar:/usr/share/xerces-2/lib/xercesImpl.jar:/usr/share/xerces-2/lib/xml-apis.jar

After this, there is no UnsupportedClassVersionError :
Code:
rm /usr/share/xerces-2
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