crash javac 1.8.0_60-ea by compiling the following code: 

public class Main { 
    public enum MyListener { 
        INSTANCE; 
    } 
    public static class AbstractImpl { 
        private final MyListener listener; 
        AbstractImpl(MyListener listener) 
                throws NullPointerException { 
            this.listener = listener; 
        } 
    } 

    public static final class DefaultImpl extends AbstractImpl { 

        private DefaultImpl() { 
            super(MyListener::INSTANCE); 
        } 
    } 

    public static void main(String[] args) { 
    } 
} 

The stack-trace is: 

An exception has occurred in the compiler (1.8.0_60-ea). Please file a bug at 
the Java Bug Database (http://bugreport.java.com/bugreport/) after checking 
the database for duplicates. Include your program and the following 
diagnostic in your report.  Thank you. 
java.lang.NullPointerException 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitIdent(Flow.java:2403) 
at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2011) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.tree.TreeScanner.visitReference(TreeScanner.java:268) 
at com.sun.tools.javac.tree.JCTree$JCMemberReference.accept(JCTree.java:1973) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExpr(Flow.java:1635) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExprs(Flow.java:1647) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitApply(Flow.java:2259) 
at 
com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:175) 
at 
com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296) 

at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitBlock(Flow.java:1883) 
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at 
com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitMethodDef(Flow.java:1811) 
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1749) 
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1722) 
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693) 
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49) 
at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2446) 
at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2429) 
at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:211) 
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1327) 
at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1296) 
at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901) 
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860) 
at com.sun.tools.javac.main.Main.compile(Main.java:523) 
at com.sun.tools.javac.main.Main.compile(Main.java:381) 
at com.sun.tools.javac.main.Main.compile(Main.java:370) 
at com.sun.tools.javac.main.Main.compile(Main.java:361) 
at com.sun.tools.javac.Main.compile(Main.java:74) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j 
ava:43) 
at java.lang.reflect.Method.invoke(Method.java:497) 
at 
org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompile 
r.java:554) 
at 
org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:16 
1) 
at 
org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java 
:605) 
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128) 
at 
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPlug 
inManager.java:134) 
at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208 
) 
at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153 
) 
at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145 
) 
at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(Lifecy 
cleModuleBuilder.java:116) 
at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(Lifecy 
cleModuleBuilder.java:80) 
at 
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuild 
er.build(SingleThreadedBuilder.java:51) 
at 
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter. 
java:128) 
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) 
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) 
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) 
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862) 
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286) 
at org.apache.maven.cli.MavenCli.main(MavenCli.java:197) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j 
ava:43) 
at java.lang.reflect.Method.invoke(Method.java:497) 
at 
org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java 
:289) 
at 
org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) 
at 
org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.ja 
va:415) 
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)