FULL PRODUCT VERSION :


ADDITIONAL OS VERSION INFORMATION :
Mac OS 10.10.3

A DESCRIPTION OF THE PROBLEM :
Information:Using javac 1.8.0_25 to compile java sources
Information:java: An exception has occurred in the compiler (1.8.0_25). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
Information:java: at com.sun.tools.javac.code.Symbol.isSubClass(Symbol.java:447)
Information:java: at com.sun.tools.javac.code.Symbol.isMemberOf(Symbol.java:456)
Information:java: at com.sun.tools.javac.code.Symbol$MethodSymbol.overrides(Symbol.java:1469)
Information:java: at com.sun.tools.javac.code.Types$ImplementationCache.implementationInternal(Types.java:2671)
Information:java: at com.sun.tools.javac.code.Types$ImplementationCache.get(Types.java:2653)
Information:java: at com.sun.tools.javac.code.Types.implementation(Types.java:2682)
Information:java: at com.sun.tools.javac.code.Symbol$MethodSymbol.implementation(Symbol.java:1529)
Information:java: at com.sun.tools.javac.code.Symbol$MethodSymbol.implementation(Symbol.java:1518)
Information:java: at com.sun.tools.javac.comp.Resolve.notOverriddenIn(Resolve.java:416)
Information:java: at com.sun.tools.javac.comp.Resolve.isAccessible(Resolve.java:402)
Information:java: at com.sun.tools.javac.comp.Resolve.isAccessible(Resolve.java:362)
Information:java: at com.sun.tools.javac.comp.Resolve.selectBest(Resolve.java:1448)
Information:java: at com.sun.tools.javac.comp.Resolve.findMethodInScope(Resolve.java:1618)
Information:java: at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1710)
Information:java: at com.sun.tools.javac.comp.Resolve.findMethod(Resolve.java:1662)
Information:java: at com.sun.tools.javac.comp.DeferredAttr$DeferredChecker$2.lookup(DeferredAttr.java:1325)
Information:java: at com.sun.tools.javac.comp.Resolve.lookupMethod(Resolve.java:3325)
Information:java: at com.sun.tools.javac.comp.Resolve.lookupMethod(Resolve.java:3310)
Information:java: at com.sun.tools.javac.comp.DeferredAttr$DeferredChecker.quicklyResolveMethod(DeferredAttr.java:1333)
Information:java: at com.sun.tools.javac.comp.DeferredAttr$DeferredChecker.visitApply(DeferredAttr.java:1223)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
Information:java: at com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
Information:java: at com.sun.tools.javac.comp.DeferredAttr$FilterScanner.scan(DeferredAttr.java:901)
Information:java: at com.sun.tools.javac.comp.DeferredAttr.isDeferred(DeferredAttr.java:1088)
Information:java: at com.sun.tools.javac.comp.Attr.attribArgs(Attr.java:701)
Information:java: at com.sun.tools.javac.comp.Attr.visitApply(Attr.java:1834)
Information:java: at com.sun.tools.javac.comp.Attr.attribTree(Attr.java:607)
Information:java: at com.sun.tools.javac.comp.Attr.visitTypeCast(Attr.java:3125)
Information:java: at com.sun.tools.javac.tree.JCTree$JCTypeCast.accept(JCTree.java:1814)
Information:java: at com.sun.tools.javac.comp.Attr.visitReturn(Attr.java:1704)
Information:java: at com.sun.tools.javac.tree.JCTree$JCReturn.accept(JCTree.java:1384)
Information:java: at com.sun.tools.javac.comp.Attr.attribStat(Attr.java:676)
Information:java: at com.sun.tools.javac.comp.Attr.attribStats(Attr.java:692)
Information:java: at com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1142)
Information:java: at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
Information:java: at com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1035)
Information:java: at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
Information:java: at com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:4342)
Information:java: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4252)
Information:java: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4201)
Information:java: at com.sun.tools.javac.comp.Attr.attribClass(Attr.java:4181)
Information:java: at com.sun.tools.javac.comp.Attr.attrib(Attr.java:4156)
Information:java: at com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1248)
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:382)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:296)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:204)
Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:176)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1196)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:877)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:945)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:840)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:663)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:370)
Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:191)
Information:java: at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:137)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:293)
Information:java: at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:124)
Information:java: at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler$1.run(BuildMain.java:242)
Information:java: at org.jetbrains.jps.service.impl.SharedThreadPoolImpl$1.run(SharedThreadPoolImpl.java:41)
Information:java: at java.util.concurrent.Executors$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 'confluence'
Information:Modules "confluence-rest-client", "confluence-upgrade", "confluence", "confluence-bucket" were fully rebuilt due to project configuration/dependencies changes
Information:3/07/15 3:47 PM - Compilation completed with 1 error and 124 warnings in 21s 513ms
Error:java: java.lang.AssertionError: isSubClass T


REPRODUCIBILITY :
This bug can be reproduced always.