Name: skT45625 Date: 07/13/2000


\jdk1.3\bin\java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)


Compile the following (yes, I know it's not legal) code:

class foo extends String[]
{
}

Yields the following message:
An exception has occurred in the compiler (1.3.0). Please file a bug at the Java
Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi). Include your
program and the following diagnostic in your report. Thank you.
java.lang.NullPointerException
at com.sun.tools.javac.v8.comp.Flow._case(Flow.java:746)
at com.sun.tools.javac.v8.tree.Tree$Apply.visit(Tree.java:785)
at com.sun.tools.javac.v8.comp.Flow.analyze(Flow.java:321)
at com.sun.tools.javac.v8.comp.Flow.analyzeExpr(Flow.java:339)
at com.sun.tools.javac.v8.comp.Flow._case(Flow.java:719)
at com.sun.tools.javac.v8.tree.Tree$Exec.visit(Tree.java:699)
at com.sun.tools.javac.v8.comp.Flow.analyze(Flow.java:321)
at com.sun.tools.javac.v8.comp.Flow.analyzeStat(Flow.java:394)
at com.sun.tools.javac.v8.comp.Flow.analyzeStats(Flow.java:413)
at com.sun.tools.javac.v8.comp.Flow._case(Flow.java:520)
at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:492)
at com.sun.tools.javac.v8.comp.Flow.analyze(Flow.java:321)
at com.sun.tools.javac.v8.comp.Flow.analyzeStat(Flow.java:394)
at com.sun.tools.javac.v8.comp.Flow._case(Flow.java:488)
at com.sun.tools.javac.v8.tree.Tree$MethodDef.visit(Tree.java:441)
at com.sun.tools.javac.v8.comp.Flow.analyze(Flow.java:321)
at com.sun.tools.javac.v8.comp.Flow.analyzeDef(Flow.java:379)
at com.sun.tools.javac.v8.comp.Flow._case(Flow.java:456)
at com.sun.tools.javac.v8.tree.Tree$ClassDef.visit(Tree.java:402)
at com.sun.tools.javac.v8.comp.Flow.analyze(Flow.java:321)
at com.sun.tools.javac.v8.comp.Flow.analyzeDef(Flow.java:379)
at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java:380)
at com.sun.tools.javac.v8.Main.compile(Main.java:247)
at com.sun.tools.javac.Main.main(Main.java:16)

Instead of this exception, I would expect a message like I get from jdk1.2.2:
foo.java:3: Can't subclass final classes: class java.lang.String
public class foo extends String[]
                         ^
foo.java:3: '{' expected.
public class foo extends String[]
                               ^
2 errors
(Review ID: 107184)
======================================================================