Hi! I am currently running a GAE application using Maven and the maven-
gae-plugin. I wanted to start using the Eclipse Plugin, since I read
that launching de GAE Development Server using the plugin lugin allows
changes to JSPs and static files to be reflected on the app without
the need to restart.
I still cannot make the plugin work with my standard maven directory
structure. Setting the WAR directory to "src/main/webapp" and trying
to run/debug the application thows the following output:
Exception in thread "main" java.lang.AbstractMethodError:
org.apache.xerces.dom.DocumentImpl.getXmlStandalone()Z
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.setDocumentInfo(DOM2TO.java:
373)
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:
127)
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:
94)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:
662)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:
708)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:
313)
at java.util.prefs.XmlSupport.writeDoc(XmlSupport.java:259)
at java.util.prefs.XmlSupport.exportMap(XmlSupport.java:338)
at java.util.prefs.FileSystemPreferences
$8.run(FileSystemPreferences.java:607)
at java.security.AccessController.doPrivileged(Native Method)
at
java.util.prefs.FileSystemPreferences.writeBackCache(FileSystemPreferences.java:
600)
at
java.util.prefs.FileSystemPreferences.syncSpiPrivileged(FileSystemPreferences.java:
784)
at java.util.prefs.FileSystemPreferences.access
$2300(FileSystemPreferences.java:33)
at java.util.prefs.FileSystemPreferences
$13.run(FileSystemPreferences.java:754)
at java.security.AccessController.doPrivileged(Native Method)
at
java.util.prefs.FileSystemPreferences.syncSpi(FileSystemPreferences.java:
752)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1317)
at java.util.prefs.AbstractPreferences.sync(AbstractPreferences.java:
1308)
at
java.util.prefs.FileSystemPreferences.sync(FileSystemPreferences.java:
731)
at
java.util.prefs.FileSystemPreferences.flush(FileSystemPreferences.java:
807)
at
com.google.appengine.tools.info.UpdateCheck.maybePrintNagScreen(UpdateCheck.java:
136)
at com.google.appengine.tools.development.DevAppServerMain
$StartAction.apply(DevAppServerMain.java:150)
at com.google.appengine.tools.util.Parser
$ParseResult.applyArgs(Parser.java:48)
at
com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:
113)
at
com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:
89)
Exception in thread "Thread-2" java.lang.AbstractMethodError:
org.apache.xerces.dom.DocumentImpl.getXmlStandalone()Z
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.setDocumentInfo(DOM2TO.java:
373)
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:
127)
at
com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:
94)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:
662)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:
708)
at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:
313)
at java.util.prefs.XmlSupport.writeDoc(XmlSupport.java:259)
at java.util.prefs.XmlSupport.exportMap(XmlSupport.java:338)
at java.util.prefs.FileSystemPreferences
$8.run(FileSystemPreferences.java:607)
at java.security.AccessController.doPrivileged(Native Method)
at
java.util.prefs.FileSystemPreferences.writeBackCache(FileSystemPreferences.java:
600)
at
java.util.prefs.FileSystemPreferences.syncSpiPrivileged(FileSystemPreferences.java:
784)
at java.util.prefs.FileSystemPreferences.access
$2300(FileSystemPreferences.java:33)
at java.util.prefs.FileSystemPreferences
$13.run(FileSystemPreferences.java:754)
at java.security.AccessController.doPrivileged(Native Method)
at
java.util.prefs.FileSystemPreferences.syncSpi(FileSystemPreferences.java:
752)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1317)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1322)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1322)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1322)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1322)
at java.util.prefs.AbstractPreferences.sync2(AbstractPreferences.java:
1322)
at java.util.prefs.AbstractPreferences.sync(AbstractPreferences.java:
1308)
at
java.util.prefs.FileSystemPreferences.sync(FileSystemPreferences.java:
731)
at
java.util.prefs.FileSystemPreferences.flush(FileSystemPreferences.java:
807)
at
java.util.prefs.FileSystemPreferences.syncWorld(FileSystemPreferences.java:
451)
at java.util.prefs.FileSystemPreferences.access
$1200(FileSystemPreferences.java:33)
at java.util.prefs.FileSystemPreferences
$5$1.run(FileSystemPreferences.java:429)
Any clue on what the problem could be? Thanks.
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