Name: rmT116609 Date: 05/01/2003


FULL PRODUCT VERSION :
I'm using the early access generics compiler with JDK 1.4.1.

java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

FULL OS VERSION :
Windows XP Home

A DESCRIPTION OF THE PROBLEM :
The generics compiler crashes with a program that looks quite innocent to me.


ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.4.1_01). Please file a bug at the Java Developer Connection (http://java.sun.com/cgi-bin/bugreport.cgi) 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.v8.code.Type.isSubType(Type.java:428)
at com.sun.tools.javac.v8.comp.Check.checkExtends(Check.java:319)
at com.sun.tools.javac.v8.comp.Check$Validator.visitTypeApply(Check.java:562)
at com.sun.tools.javac.v8.tree.Tree$TypeApply.accept(Tree.java:975)
at com.sun.tools.javac.v8.comp.Check.validate(Check.java:516)
at com.sun.tools.javac.v8.comp.Check.validate(Check.java:526)
at com.sun.tools.javac.v8.comp.Check$Validator.visitTypeParameter(Check.java:570)
at com.sun.tools.javac.v8.tree.Tree$TypeParameter.accept(Tree.java:1001)
at com.sun.tools.javac.v8.comp.Check.validate(Check.java:516)
at com.sun.tools.javac.v8.comp.Check.validateTypeParams(Check.java:534)
at com.sun.tools.javac.v8.comp.Attr.attribClassBody(Attr.java:1978)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1964)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1928)
at com.sun.tools.javac.v8.comp.Attr.visitClassDef(Attr.java:336)
at com.sun.tools.javac.v8.tree.Tree$ClassDef.accept(Tree.java:388)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:212)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:246)
at com.sun.tools.javac.v8.comp.Attr.attribClassBody(Attr.java:2019)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1964)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1951)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1947)
at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1928)
at com.sun.tools.javac.v8.comp.Attr.visitTypeParameter(Attr.java:1905)
at com.sun.tools.javac.v8.tree.Tree$TypeParameter.accept(Tree.java:1001)
at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:212)
at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:246)
at com.sun.tools.javac.v8.comp.Attr.attribStats(Attr.java:262)
at com.sun.tools.javac.v8.comp.Enter$CompleteEnter.complete(Enter.java:1028)
at com.sun.tools.javac.v8.code.Symbol.complete(Symbol.java:321)
at com.sun.tools.javac.v8.code.Symbol$ClassSymbol.complete(Symbol.java:623)
at com.sun.tools.javac.v8.comp.Enter.complete(Enter.java:656)
at com.sun.tools.javac.v8.comp.Enter.main(Enter.java:635)
at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java:311)
at com.sun.tools.javac.v8.Main.compile(Main.java:484)
at com.sun.tools.javac.Main.compile(Main.java:33)
at com.sun.tools.javac.Main.main(Main.java:24)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package genericstest;

public class OuterClass {

static interface I<T> {}
static class X<T> {}
static class A<U extends X<V> & I<V>, V extends I<U>> {}
}

---------- END SOURCE ----------
(Review ID: 182443)
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