FULL PRODUCT VERSION :


ADDITIONAL OS VERSION INFORMATION :
10.10.5 (14F1509

A DESCRIPTION OF THE PROBLEM :
Information:Using javac 1.8.0_66 to compile java sources
Information:java: An exception has occurred in the compiler (1.8.0_66). 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.
Information:java: java.lang.NullPointerException
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitIdent(Flow.java:2403)
Information:java: at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2011)
Information:java: at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
Information:java: at com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:404)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scan(Flow.java:1382)
Information:java: at com.sun.tools.javac.tree.TreeScanner.visitReference(TreeScanner.java:268)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMemberReference.accept(JCTree.java:1973)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExpr(Flow.java:1635)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.scanExprs(Flow.java:1647)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitApply(Flow.java:2259)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
Information:java: at com.sun.tools.javac.tree.TreeScanner.visitExec(TreeScanner.java:175)
Information:java: at com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1296)
Information:java: at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitBlock(Flow.java:1883)
Information:java: at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitMethodDef(Flow.java:1811)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1749)
Information:java: at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:693)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.visitClassDef(Flow.java:1722)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2446)
Information:java: at com.sun.tools.javac.comp.Flow$AssignAnalyzer.analyzeTree(Flow.java:2429)
Information:java: at com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:211)
Information:java: at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1327)
Information:java: at com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1296)
Information:java: at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
Information:java: at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
Information:java: at com.sun.tools.javac.main.Main.compile(Main.java:523)
Information:java: at com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:129)
Information:java: at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:138)
Information:java: at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:168)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:385)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:286)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:194)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:166)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1230)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:904)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:976)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:870)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:695)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:386)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:193)
Information:java: at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:137)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:294)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:125)
Information:java: at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$1.run(BuildMain.java:232)
Information:java: at org.jetbrains.jps.service.impl.SharedThreadPoolImpl$1.run(SharedThreadPoolImpl.java:42)
Information:java: at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
Information:java: at java.util.concurrent.FutureTask.run(FutureTask.java:266)
Information:java: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
Information:java: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
Information:java: at java.lang.Thread.run(Thread.java:745)
Information:java: Errors occurred while compiling module 'DevLiveWeb'
Information:1/5/16, 12:39 PM - Compilation completed with 1 error and 41 warnings in 5s 395ms
Error:java: Compilation failed: internal java compiler error

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Sometimes happens when I switch Git branches, I do a rebuild in Intelij 15.0 Build #IU-143.381 which uses javac 1.8.0_66, problem goes away if i restart my laptop


REPRODUCIBILITY :
This bug can be reproduced occasionally.