An unhandled exception was thrown by the Error Prone static analysis plugin

[victornoel]

Description of the problem / feature request:

An unhandled exception was thrown by the Error Prone static analysis plugin:

[ERROR]      error-prone version: 2.3.3
[ERROR]      BugPattern: TypeParameterUnusedInFormals
[ERROR]      Stack Trace:
[ERROR]      java.lang.NoSuchFieldError: bound
[ERROR]   	at com.google.errorprone.bugpatterns.TypeParameterUnusedInFormals.matchMethod(TypeParameterUnusedInFormals.java:71)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.processMatchers(ErrorProneScanner.java:433)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:725)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitMethod(ErrorProneScanner.java:150)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:908)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
[ERROR]   	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:71)
[ERROR]   	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:45)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.visitClass(TreeScanner.java:188)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:535)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitClass(ErrorProneScanner.java:150)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:818)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:82)
[ERROR]   	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:71)
[ERROR]   	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:45)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.scan(TreeScanner.java:106)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:114)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreeScanner.visitCompilationUnit(TreeScanner.java:145)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:546)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScanner.visitCompilationUnit(ErrorProneScanner.java:150)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:601)
[ERROR]   	at jdk.compiler/com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:56)
[ERROR]   	at com.google.errorprone.scanner.Scanner.scan(Scanner.java:55)
[ERROR]   	at com.google.errorprone.scanner.ErrorProneScannerTransformer.apply(ErrorProneScannerTransformer.java:43)
[ERROR]   	at com.google.errorprone.ErrorProneAnalyzer.finished(ErrorProneAnalyzer.java:151)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.api.MultiTaskListener.finished(MultiTaskListener.java:132)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1423)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1370)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:965)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:104)
[ERROR]   	at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:147)
[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:126)
[ERROR]   	at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:174)
[ERROR]   	at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1134)
[ERROR]   	at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:187)
[ERROR]   	at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:137)
[ERROR]   	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:210)
[ERROR]   	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:156)
[ERROR]   	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
[ERROR]   	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:117)
[ERROR]   	at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
[ERROR]   	at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:56)
[ERROR]   	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
[ERROR]   	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:305)
[ERROR]   	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:192)
[ERROR]   	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:105)
[ERROR]   	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:957)
[ERROR]   	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:289)
[ERROR]   	at org.apache.maven.cli.MavenCli.main(MavenCli.java:193)
[ERROR]   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[ERROR]   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[ERROR]   	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[ERROR]   	at java.base/java.lang.reflect.Method.invoke(Method.java:567)
[ERROR]   	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:282)
[ERROR]   	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:225)
[ERROR]   	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406)
[ERROR]   	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:347)

Bugs: what's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

This is using eclipse collection as a dependency.

public interface Features {

    <X extends Enum<X>> X value(Class<X> feature);

    Features with(Enum<?>... feature);

    @Override
    String toString();

    public static final class Of implements Features {

        private MapIterable<Class<? extends Enum<?>>, Enum<?>> values;

        public Of(Enum<?>... values) {
            this(Lists.immutable.of(values));
        }

        public Of(RichIterable<Enum<?>> values) {
            this.values = values.toMap(Enum::getDeclaringClass, Functions.identity());
        }

        @Override
        @SuppressWarnings("unchecked")
        public <X extends Enum<X>> X value(Class<X> feature) {
            return (X) values.get(feature);
        }

        @Override
        @SuppressWarnings("unchecked")
        public Features with(Enum<?>... feature) {
            return new Of(LazyIterate.concatenate(values.valuesView(), Lists.immutable.of(feature)));
        }

        @Override
        public String toString() {
            return values.keyValuesView().collect(p -> p.getOne().getSimpleName() + "=" + p.getTwo()).toString();
        }
    }
}

What version of Error Prone are you using?

error-prone version: 2.3.3, OpenJDK 13

[tbroyer]

This is #1106 and has been fixed in 1af9dbc so will be in 2.3.5 (or whatever will be the next version)

[victornoel]

thx @tbroyer