Test ran javap -s java.lang.ClassLoader on class in rt.jar and in local copy.
javap java.lang.ClassLoader also crashes javap.

Error message and stack trace:

Error: A serious internal error has occurred: java.lang.NullPointerException
Please file a bug report, and include the following information:
java.lang.NullPointerException
at com.sun.tools.classfile.Exceptions_attribute.getException(Exceptions_attribute.java:60)
at com.sun.tools.javap.AttributeWriter.getJavaException(AttributeWriter.java:264)
at com.sun.tools.javap.ClassWriter.writeMethod(ClassWriter.java:294)
at com.sun.tools.javap.ClassWriter.writeMethods(ClassWriter.java:213)
at com.sun.tools.javap.ClassWriter.write(ClassWriter.java:152)
at com.sun.tools.javap.JavapTask.run(JavapTask.java:455)
at com.sun.tools.javap.JavapTask.run(JavapTask.java:312)
at com.sun.tools.javap.Main.main(Main.java:53)
at sun.tools.javap.Main.main(Main.java:54)

Error: A serious internal error has occurred: java.lang.NullPointerException
Please file a bug report, and include the following information:
java.lang.NullPointerException
at com.sun.tools.classfile.Exceptions_attribute.getException(Exceptions_attribute.java:60)
at com.sun.tools.javap.AttributeWriter.getJavaException(AttributeWriter.java:264)
at com.sun.tools.javap.ClassWriter.writeMethod(ClassWriter.java:294)
at com.sun.tools.javap.ClassWriter.writeMethods(ClassWriter.java:213)
at com.sun.tools.javap.ClassWriter.write(ClassWriter.java:152)
at com.sun.tools.javap.JavapTask.run(JavapTask.java:455)
at com.sun.tools.javap.JavapTask.run(JavapTask.java:312)
at com.sun.tools.javap.Main.main(Main.java:53)
at sun.tools.javap.Main.main(Main.java:54)