The following forum message was posted by fmalzer at 
http://sourceforge.net/projects/pydev/forums/forum/293649/topic/4412596:

Hello,
I have problems when Pydev analyse existing Jhython code:

Error checking for valid tokens (imports) 
java.lang.NullPointerException
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.markRea
d(AbstractScopeAnalyzerVisitor.java:1041)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.visitAt
tribute(AbstractScopeAnalyzerVisitor.java:583)
        at 
org.python.pydev.parser.jython.ast.Attribute.accept(Attribute.java:61)
        at org.python.pydev.parser.jython.ast.Call.traverse(Call.java:97)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.travers
e(AbstractScopeAnalyzerVisitor.java:187)
        at 
com.python.pydev.analysis.visitors.OccurrencesVisitor.traverse(OccurrencesVi
sitor.java:233)
        at 
org.python.pydev.parser.jython.ast.VisitorBase.visitCall(VisitorBase.java:26
6)
        at 
com.python.pydev.analysis.visitors.OccurrencesVisitor.visitCall(OccurrencesV
isitor.java:197)
        at org.python.pydev.parser.jython.ast.Call.accept(Call.java:92)
        at org.python.pydev.parser.jython.ast.Expr.traverse(Expr.java:55)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.travers
e(AbstractScopeAnalyzerVisitor.java:187)
        at 
com.python.pydev.analysis.visitors.OccurrencesVisitor.traverse(OccurrencesVi
sitor.java:233)
        at 
org.python.pydev.parser.jython.ast.VisitorBase.visitExpr(VisitorBase.java:16
4)
        at org.python.pydev.parser.jython.ast.Expr.accept(Expr.java:50)
        at org.python.pydev.parser.jython.ast.For.traverse(For.java:90)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.travers
e(AbstractScopeAnalyzerVisitor.java:187)
        at 
com.python.pydev.analysis.visitors.OccurrencesVisitor.traverse(OccurrencesVi
sitor.java:233)
        at 
org.python.pydev.parser.jython.ast.VisitorBase.visitFor(VisitorBase.java:86)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.visitFo
r(AbstractScopeAnalyzerVisitor.java:685)
        at org.python.pydev.parser.jython.ast.For.accept(For.java:77)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.visitFu
nctionDef(AbstractScopeAnalyzerVisitor.java:338)
        at 
org.python.pydev.parser.jython.ast.FunctionDef.accept(FunctionDef.java:92)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.visitCl
assDef(AbstractScopeAnalyzerVisitor.java:221)
        at org.python.pydev.parser.jython.ast.ClassDef.accept(ClassDef.java:120)
        at org.python.pydev.parser.jython.ast.Module.traverse(Module.java:66)
        at 
com.python.pydev.analysis.scopeanalysis.AbstractScopeAnalyzerVisitor.travers
e(AbstractScopeAnalyzerVisitor.java:187)
        at 
com.python.pydev.analysis.visitors.OccurrencesVisitor.traverse(OccurrencesVi
sitor.java:233)
        at 
org.python.pydev.parser.jython.ast.VisitorBase.visitModule(VisitorBase.java:
8)
        at org.python.pydev.parser.jython.ast.Module.accept(Module.java:59)
        at 
com.python.pydev.analysis.OccurrencesAnalyzer.analyzeDocument(OccurrencesAna
lyzer.java:56)
        at 
com.python.pydev.analysis.OccurrencesAnalyzer.analyzeDocument(OccurrencesAna
lyzer.java:44)
        at 
com.python.pydev.analysis.builder.AnalysisBuilderRunnable.doAnalysis(Analysi
sBuilderRunnable.java:241)
        at 
com.python.pydev.analysis.builder.AbstractAnalysisBuilderRunnable.run(Abstra
ctAnalysisBuilderRunnable.java:157)
        at 
org.python.pydev.core.concurrency.RunnableAsJobsPoolThread$1.run(RunnableAsJ
obsPoolThread.java:103)
        at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Does anyone know what goes wrong?

:-Q ferry malzer 

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