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When core classes are built for debug (-g flag) javah throws an unexpected java.lang.NullPointerException while working in jdk/make/java/nio: An exception has occurred in the compiler (1.7.0-tbell_2009_10_05.23.59.01_bootstrap). 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. java.lang.NullPointerException at com.sun.tools.javac.code.Symbol$MethodSymbol.params(Symbol.java:1226) at com.sun.tools.javac.code.Symbol$MethodSymbol.getParameters(Symbol.java:1252) at com.sun.tools.javac.code.Symbol$MethodSymbol.getParameters(Symbol.java:1014) at javax.lang.model.util.ElementScanner6.visitExecutable(ElementScanner6.java:191) at com.sun.tools.javac.code.Symbol$MethodSymbol.accept(Symbol.java:1260) at javax.lang.model.util.ElementScanner6.scan(ElementScanner6.java:139) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ComputeAnnotationSet.scan(JavacProcessingEnvironment.java:767) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ComputeAnnotationSet.scan(JavacProcessingEnvironment.java:745) at javax.lang.model.util.ElementScanner6.scan(ElementScanner6.java:129) at javax.lang.model.util.ElementScanner6.visitType(ElementScanner6.java:169) at com.sun.tools.javac.code.Symbol$ClassSymbol.accept(Symbol.java:874) at javax.lang.model.util.ElementScanner6.scan(ElementScanner6.java:139) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ComputeAnnotationSet.scan(JavacProcessingEnvironment.java:767) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ComputeAnnotationSet.scan(JavacProcessingEnvironment.java:745) at javax.lang.model.util.ElementScanner6.scan(ElementScanner6.java:129) at javax.lang.model.util.ElementScanner6.visitType(ElementScanner6.java:169) at com.sun.tools.javac.code.Symbol$ClassSymbol.accept(Symbol.java:874) at javax.lang.model.util.ElementScanner6.scan(ElementScanner6.java:139) at com.sun.tools.javac.processing.JavacProcessingEnvironment$ComputeAnnotationSet.scan(JavacProcessingEnvironment.java:767) at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:825) at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1070) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:805) at com.sun.tools.javac.main.Main.compile(Main.java:400) at com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:139) at com.sun.tools.javah.JavahTask.run(JavahTask.java:482) at com.sun.tools.javah.JavahTask.run(JavahTask.java:319) at com.sun.tools.javah.Main.main(Main.java:46) Bug-ID 6888888 is the short term workaround, which is to use the bootstrap javah instead. This bug report is for the eventual fix.
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