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jdk.incubator.foreign JDK module (/jdk/internal/foreign/abi/ProgrammableInvoker.java) causes NPE in ReachabilityFenceUsage #2641

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iignatev opened this issue Oct 20, 2021 · 0 comments · Fixed by #2744
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jdk.incubator.foreign JDK module (/jdk/internal/foreign/abi/ProgrammableInvoker.java) causes NPE in ReachabilityFenceUsage #2641

iignatev opened this issue Oct 20, 2021 · 0 comments · Fixed by #2744

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@iignatev
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/Users/iignatye/ws/jdk/open/src/jdk.incubator.foreign/share/classes/jdk/internal/foreign/abi/ProgrammableInvoker.java:337: error: An unhandled exception was thrown by the Error Prone static analysis plugin.
            Reference.reachabilityFence(address);
                                       ^
     Please report this at https://github.com/google/error-prone/issues/new and include the following:
  
     error-prone version: 2.9.0
     BugPattern: ReachabilityFenceUsage
     Stack Trace:
     java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "com.sun.source.tree.TryTree.getFinallyBlock()" is null
  	at com.google.errorprone.bugpatterns.ReachabilityFenceUsage.matchMethodInvocation(ReachabilityFenceUsage.java:53)
  	at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:450)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitMethodInvocation(ErrorProneScanner.java:747)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitMethodInvocation(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1813)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitExpressionStatement(TreeScanner.java:502)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitExpressionStatement(ErrorProneScanner.java:634)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitExpressionStatement(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1592)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:521)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1103)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitTry(TreeScanner.java:435)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitTry(ErrorProneScanner.java:846)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitTry(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCTry.accept(JCTree.java:1460)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:521)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1103)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:224)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:741)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:953)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:203)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:549)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)
  	at jdk.compiler.interim/com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:152)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:561)
  	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:151)
  	at jdk.compiler.interim/com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:614)
  	at jdk.compiler.interim/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:60)
  	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:58)
  	at com.google.errorprone.scanner.ErrorProneScannerTransformer.apply(ErrorProneScannerTransformer.java:43)
  	at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:152)
  	at jdk.compiler.interim/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
  	at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1394)
  	at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1341)
  	at jdk.compiler.interim/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:933)
  	at jdk.compiler.interim/com.sun.tools.javac.main.Main.compile(Main.java:317)
  	at jdk.compiler.interim/com.sun.tools.javac.main.Main.compile(Main.java:176)
  	at jdk.compiler.interim/com.sun.tools.javac.Main.compile(Main.java:64)
  	at jdk.compiler.interim/com.sun.tools.javac.Main.main(Main.java:50)
@copybara-service copybara-service bot mentioned this issue Dec 10, 2021
Merged
copybara-service bot pushed a commit that referenced this issue Dec 10, 2021
@sumitbhagwani
Fix NPE in ReachabilityFenceUsage
4b7ccd7 
Fixes #2641

PiperOrigin-RevId: 415451162
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Fix NPE in ReachabilityFenceUsage google/error-prone
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@iignatev