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NPE with StatementSwitchToExpressionSwitch on JDK21EA

Open delanym opened this issue 2 years ago • 1 comments 

[ERROR]      error-prone version: 2.20.0                                                                                     
[ERROR]      BugPattern: StatementSwitchToExpressionSwitch                                                                   
[ERROR]      Stack Trace:                                                                                                    
[ERROR]      java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "com.google.errorprone.util.ASTHelpers.getSymbol(com.sun.source.tree.Tree)" is null
[ERROR]         at com.google.errorprone.bugpatterns.StatementSwitchToExpressionSwitch.analyzeCaseForAssignmentSwitch(StatementSwitchToExpressionSwitch.java:435)
[ERROR]         at com.google.errorprone.bugpatterns.StatementSwitchToExpressionSwitch.analyzeSwitchTree(StatementSwitchToExpressionSwitch.java:255)
[ERROR]         at com.google.errorprone.bugpatterns.StatementSwitchToExpressionSwitch.matchSwitch(StatementSwitchToExpressionSwitch.java:151)
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:449)
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitSwitch(ErrorProneScanner.java:823)    
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitSwitch(ErrorProneScanner.java:150)
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCSwitch.accept(JCTree.java:1309)   
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)         
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                                     
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                                     
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)       
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)               
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)                      
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:520)                
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:150)       
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1104)              
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)                   
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                       
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                            
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)           
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitForLoop(TreeScanner.java:321)            
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitForLoop(ErrorProneScanner.java:640)
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitForLoop(ErrorProneScanner.java:150)
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCForLoop.accept(JCTree.java:1212)                     
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)                  
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                                             
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                                            
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)                                                                                                                                                        
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)                               
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)         
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:520)     
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitBlock(ErrorProneScanner.java:150)
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1104)    
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)   
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                                         
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                                          
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)                         
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitMethod(TreeScanner.java:224)                         
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:740)                                                                                                                                                                                                               
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:150)
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:948)            
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)                                                           
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                                                                              
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                                                                              
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)            
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)        
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)                                                         
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:203)         
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:548)    
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:150)                                                   
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:855)     
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:92)                                                           
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:74)                                                                                                                                                                            
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:48)                                                                                                                                                                                                                                                                                        
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)                                                                                         
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:119)                                                         
[ERROR]         at jdk.compiler/com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:152)                                                  
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:560)                                                                
[ERROR]         at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:150)                                         
[ERROR]         at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:623)                                                   
[ERROR]         at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:66)                                                                                  
[ERROR]         at com.google.errorprone.scanner.Scanner.scan(Scanner.java:58)                                                                              
[ERROR]         at com.google.errorprone.scanner.ErrorProneScannerTransformer.apply(ErrorProneScannerTransformer.java:43)                                                          
[ERROR]         at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:156)                                                                                                                                                                                                                        
[ERROR]         at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:133)                                                                     
[ERROR]         at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1435)                                                                                 
[ERROR]         at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1382)                                                                                 
[ERROR]         at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:971)                                                                                                                                                                                                                                                                                                                              
[ERROR]         at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)                                                                                                    
[ERROR]         at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.invocationHelper(JavacTaskImpl.java:152)                                                                                                   
[ERROR]         at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:100)                                                                               
[ERROR]         at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:94)                                                                                  
[ERROR]         at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:136)                                                                                           
[ERROR]         at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:183)                                                                         
[ERROR]         at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1140)                                                                   
[ERROR]         at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:193)                                                                                                                  
[ERROR]         at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:126)                                                               
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:328)                                                                                                            
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:316)                                                                                                                                                                                                                                                                  
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)                                                                                                               
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:174)                                                                                                               
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.access$000(MojoExecutor.java:75)     
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor$1.run(MojoExecutor.java:162)         
[ERROR]         at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute(DefaultMojosExecutionStrategy.java:39)
[ERROR]         at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:159)                                                                                                               
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:105)                                                                                      
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:73)
[ERROR]         at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:53)                                                                          
[ERROR]         at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:118)                                                                                                       
[ERROR]         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:261)                        
[ERROR]         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:173)                                                                                                                                
[ERROR]         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:101)                          
[ERROR]         at org.apache.maven.cli.MavenCli.execute(MavenCli.java:906)                                                                                                                                                                                                                                                                                                                                                       
[ERROR]         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:283)
[ERROR]         at org.apache.maven.cli.MavenCli.main(MavenCli.java:206)
[ERROR]         at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
[ERROR]         at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:283)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:226)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:407)
[ERROR]         at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:348)

delanym avatar Sep 18 '23 05:09 delanym

Thanks for the report. Do you have a minimal, self-contained example that reproduces the crash?

cushon avatar Sep 18 '23 15:09 cushon

No longer applicable

delanym avatar May 07 '24 06:05 delanym