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Posted to notifications@groovy.apache.org by "Paul King (JIRA)" <ji...@apache.org> on 2019/02/21 06:19:02 UTC
[jira] [Closed] (GROOVY-8959) NPE in StaticVerifier
[ https://issues.apache.org/jira/browse/GROOVY-8959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul King closed GROOVY-8959.
-----------------------------
> NPE in StaticVerifier
> ---------------------
>
> Key: GROOVY-8959
> URL: https://issues.apache.org/jira/browse/GROOVY-8959
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
> Affects Versions: 2.4.16, 2.5.5
> Reporter: Eric Milles
> Assignee: Paul King
> Priority: Major
> Fix For: 2.5.6, 3.0.0-alpha-5
>
>
> I don't have the exact code that created this error, but the fix seems pretty simple.
> {code:java}
> // excerpt from StaticVerifier.visitConstructorOrMethod
> public void visitVariableExpression(VariableExpression ve) {
> if (exceptions.contains(ve.getName())) return;
> /* GRECLIPSE edit -- VariableExpression.isInStaticContext is null safe
> Variable av = ve.getAccessedVariable();
> if (av instanceof DynamicVariable || !av.isInStaticContext()) { // this is line 96
> */
> if (ve.getAccessedVariable() instanceof DynamicVariable || !ve.isInStaticContext()) {
> // GRECLIPSE end
> addVariableError(ve);
> }
> }
> {code}
> {code}
> java.lang.NullPointerException
> at org.codehaus.groovy.control.StaticVerifier$1.visitVariableExpression(StaticVerifier.java:96)
> at org.codehaus.groovy.ast.expr.VariableExpression.visit(VariableExpression.java:72)
> at org.codehaus.groovy.ast.CodeVisitorSupport.visitPropertyExpression(CodeVisitorSupport.java:302)
> at org.codehaus.groovy.ast.expr.PropertyExpression.visit(PropertyExpression.java:57)
> at org.codehaus.groovy.control.StaticVerifier.visitConstructorOrMethod(StaticVerifier.java:91)
> at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructor(ClassCodeVisitorSupport.java:162)
> at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1210)
> at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:54)
> at org.codehaus.groovy.control.StaticVerifier.visitClass(StaticVerifier.java:54)
> at org.codehaus.groovy.control.CompilationUnit$13.call(CompilationUnit.java:241)
> at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1143)
> ... 20 more
> {code}
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