java.lang.NullPointerException
   at org.netbeans.modules.web.el.ELTypeUtilities.getReturnTypeForGenericClass(ELTypeUtilities.java:227)
   at org.netbeans.modules.web.el.ELTypeUtilities.getReturnType(ELTypeUtilities.java:212)
   at org.netbeans.modules.web.el.ELTypeUtilities$TypeResolverVisitor.visit(ELTypeUtilities.java:909)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:222)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at org.netbeans.modules.web.el.ELTypeUtilities.resolveElement(ELTypeUtilities.java:192)
   at org.netbeans.modules.web.el.ELTypeUtilities.resolveElement(ELTypeUtilities.java:181)
   at org.netbeans.modules.web.el.hints.Identifiers$1.visit(Identifiers.java:120)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:222)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at com.sun.el.parser.SimpleNode.accept(SimpleNode.java:225)
   at org.netbeans.modules.web.el.hints.Identifiers.run(Identifiers.java:106)
   at org.netbeans.modules.web.el.hints.ELHintsProvider$1.run(ELHintsProvider.java:93)
   at org.netbeans.modules.web.el.hints.ELHintsProvider$1.run(ELHintsProvider.java:85)
   at org.netbeans.modules.java.source.parsing.MimeTask.run(MimeTask.java:83)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:593)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:382)
   at org.netbeans.modules.parsing.api.ParserManager$MimeTaskAction.run(ParserManager.java:365)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:203)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:336)
   at org.netbeans.api.java.source.JavaSource.runUserActionTaskImpl(JavaSource.java:422)
   at org.netbeans.api.java.source.JavaSource.runUserActionTask(JavaSource.java:414)
   at org.netbeans.modules.web.el.hints.ELHintsProvider.computeHints(ELHintsProvider.java:85)
   at org.netbeans.modules.csl.hints.infrastructure.HintsTask$1.run(HintsTask.java:138)
   at org.netbeans.modules.csl.hints.infrastructure.HintsTask$1.run(HintsTask.java:100)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:593)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:155)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:139)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:206)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:203)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:74)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:211)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:106)
   at org.netbeans.modules.csl.hints.infrastructure.HintsTask.run(HintsTask.java:93)
   at org.netbeans.modules.csl.hints.infrastructure.HintsTask.run(HintsTask.java:74)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:568)
   at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:744)
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
   at java.util.concurrent.FutureTask.run(FutureTask.java:262)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)