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Showing content from https://github.com/pmd/pmd/issues/534 below:

[java] NPE in MethodTypeResolution for static methods · Issue #534 · pmd/pmd · GitHub

There is an NPE in MethodTypeResolution in master branch that doesn't occur using latest release. Seems to happen for static methods.

@WinterGrascph could you please take a look?

Description:

Caused by: java.lang.NullPointerException
        at net.sourceforge.pmd.lang.java.typeresolution.MethodTypeResolution.isSubtypeable(MethodTypeResolution.java:488)
        at net.sourceforge.pmd.lang.java.typeresolution.MethodTypeResolution.isSubtypeable(MethodTypeResolution.java:479)
        at net.sourceforge.pmd.lang.java.typeresolution.MethodTypeResolution.selectMethodsFirstPhase(MethodTypeResolution.java:111)
        at net.sourceforge.pmd.lang.java.typeresolution.MethodTypeResolution.getBestMethodReturnType(MethodTypeResolution.java:228)
        at net.sourceforge.pmd.lang.java.typeresolution.ClassTypeResolver.visit(ClassTypeResolver.java:454)
        at net.sourceforge.pmd.lang.java.ast.ASTName.jjtAccept(ASTName.java:35)
        at net.sourceforge.pmd.lang.java.ast.AbstractJavaNode.childrenAccept(AbstractJavaNode.java:56)
        at net.sourceforge.pmd.lang.java.ast.JavaParserVisitorAdapter.visit(JavaParserVisitorAdapter.java:10)
        at net.sourceforge.pmd.lang.java.ast.JavaParserVisitorAdapter.visit(JavaParserVisitorAdapter.java:314)
        at net.sourceforge.pmd.lang.java.typeresolution.ClassTypeResolver.visit(ClassTypeResolver.java:998)
        at net.sourceforge.pmd.lang.java.ast.ASTPrimaryPrefix.jjtAccept(ASTPrimaryPrefix.java:42)
        at net.sourceforge.pmd.lang.java.typeresolution.ClassTypeResolver.visit(ClassTypeResolver.java:841)
        at net.sourceforge.pmd.lang.java.ast.ASTPrimaryExpression.jjtAccept(ASTPrimaryExpression.java:21)
        at net.sourceforge.pmd.lang.java.ast.AbstractJavaNode.childrenAccept(AbstractJavaNode.java:56)

Running PMD through: [CLI | Ant | Maven | Gradle | Designer | Other]
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