Name: avC70361 Date: 06/01/99



  The java compiler of jdk1.3(build JDK1.3-F) fails to compile a switch statement with the only default
branch followed by break operator. The compiler throws unexpected NullPointerException.

Here is a test demonstrating the bug.
----------SwitchTest.java---------------
public class SwitchTest {
    public SwitchTest() {
        switch(0) {
            default : break;
        }
    }
}
--------The test compilation output---------
> java -version
java version "1.3"
Classic VM (build JDK-1.3-F, green threads, sunwjit)
> javac SwitchTest.java


An exception has occurred in the compiler. (v0.8)
Please file a bug report by sending your program and the following diagnostic to
###@###.###.

   Thank you.

java.lang.NullPointerException
        at com.sun.tools.javac.v8.comp.Gen._case(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.tree.Tree$Break.visit(Tree.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genDef(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genStat(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genStats(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen._case(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.tree.Tree$Switch.visit(Tree.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genDef(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genStat(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genStats(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen._case(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genDef(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genStat(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genMethod(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen._case(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.tree.Tree$MethodDef.visit(Tree.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genDef(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.comp.Gen.genClass(Gen.java, Compiled Code)
        at com.sun.tools.javac.v8.JavaCompiler.genCode(JavaCompiler.java, Compiled Code)
        at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java, Compiled Code)
        at com.sun.tools.javac.v8.Main.compile(Main.java, Compiled Code)
        at com.sun.tools.javac.Main.main(Main.java, Compiled Code)

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