A DESCRIPTION OF THE PROBLEM :
������������������ (1.8.0_181) ������������������������������������������������������������������ Bug Database (http://bugs.java.com) ������������������������������������������������, ������������������ Java Bug ������������������ (http://bugreport.java.com) ������������������ Java ������������������ Bug������������������������������������������������������������������������������������������������������������������������������������������
java.lang.NullPointerException
at com.sun.tools.javac.code.Types.removeWildcards(Types.java:601)
at com.sun.tools.javac.code.Types$DescriptorCache$FunctionDescriptor.getType(Types.java:362)
at com.sun.tools.javac.code.Types.findDescriptorType(Types.java:568)
at com.sun.tools.javac.code.Types.isFunctionalInterface(Types.java:585)
at com.sun.tools.javac.comp.DeferredAttr$CheckStuckPolicy.visitLambda(DeferredAttr.java:997)
at com.sun.tools.javac.comp.DeferredAttr$OverloadStuckPolicy.visitLambda(DeferredAttr.java:1080)
at com.sun.tools.javac.tree.JCTree$JCLambda.accept(JCTree.java:1624)
at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
at com.sun.tools.javac.comp.DeferredAttr$FilterScanner.scan(DeferredAttr.java:913)
at com.sun.tools.javac.comp.DeferredAttr$CheckStuckPolicy.<init>(DeferredAttr.java:980)
at com.sun.tools.javac.comp.DeferredAttr$OverloadStuckPolicy.<init>(DeferredAttr.java:1075)
at com.sun.tools.javac.comp.DeferredAttr$DeferredType.check(DeferredAttr.java:229)
at com.sun.tools.javac.comp.Resolve$MethodResultInfo.check(Resolve.java:1008)
at com.sun.tools.javac.comp.Resolve$4.checkArg(Resolve.java:835)
at com.sun.tools.javac.comp.Resolve$AbstractMethodCheck.argumentsAcceptable(Resolve.java:735)
at com.sun.tools.javac.comp.Resolve$4.argumentsAcceptable(Resolve.java:844)
at com.sun.tools.javac.comp.Resolve.rawInstantiate(Resolve.java:579)
at com.sun.tools.javac.comp.Resolve.selectBest(Resolve.java:1446)
at com.sun.tools.javac.comp.Resolve.findMethodInScope(Resolve.java:1633)
at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1704)
at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1677)
at com.sun.tools.javac.comp.Resolve$9.doLookup(Resolve.java:2436)
at com.sun.tools.javac.comp.Resolve$BasicLookupHelper.lookup(Resolve.java:3097)
at com.sun.tools.javac.comp.Resolve.lookupMethod(Resolve.java:3348)
at com.sun.tools.javac.comp.Resolve.resolveQualifiedMethod(Resolve.java:2433)
at com.sun.tools.javac.comp.Resolve.resolveQualifiedMethod(Resolve.java:2427)
at com.sun.tools.javac.comp.Attr.selectSym(Attr.java:3396)
at com.sun.tools.javac.comp.Attr.visitSelect(Attr.java:3278)
at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1897)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1825)
at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:625)
at com.sun.tools.javac.comp.Attr.visitExec(Attr.java:1593)
at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:645)
at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:661)
at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1124)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:645)
at com.sun.tools.javac.comp.Attr.visitForeachLoop(Attr.java:1189)
at com.sun.tools.javac.tree.JCTree$JCEnhancedForLoop.accept(JCTree.java:1035)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:645)
at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:661)
at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1124)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:645)
at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1013)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:576)
at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:645)
at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4364)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4272)
at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4201)
at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4176)
at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1248)
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.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:126)
at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:174)
at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:1075)
at org.apache.maven.plugin.compiler.CompilerMojo.execute(CompilerMojo.java:168)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
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(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.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:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
FREQUENCY : always