Name: rmT116609 Date: 05/07/2002


FULL PRODUCT VERSION :
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

jm@rangefinder :: ~/JAST/recreateBugs/2002-05-06a
(699) rpm -query glibc; uname -a ; cat /etc/mandrake-release
glibc-2.2.4-25mdk
Linux r[...] 2.4.18-6mdk #1 Fri Mar 15 02:59:08 CET 2002 i686 unknown
Mandrake Linux release 8.2 (Bluebird) for i586


A DESCRIPTION OF THE PROBLEM :
This class:

// Class XXX.java
package buggy;
public class XXX {

    static {
new Object () {
Object extra() {
return vary; // Not referring to vary removes the error
}
};
    }

    static final Object vary // also fails if private, public
= new Object () {
Object extra=null; // also fails if extend inner class with method
};

}


causes this javac output:

An exception has occurred in the compiler (1.4.0). 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.InternalError: class <anonymous buggy.XXX$1>
        at com.sun.tools.javac.v8.code.Scope.leave(Scope.java:129)
        at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:463)
        at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:539)
        at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
        at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
        at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1489)
        at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1456)
        at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java:396)
        at com.sun.tools.javac.v8.Main.compile(Main.java:526)
        at com.sun.tools.javac.Main.compile(Main.java:32)
        at com.sun.tools.javac.Main.main(Main.java:23)

The problem is also reproducible on Linux Redhat 7.1(Seawolf) using JDK1.4.0.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Put the code in a file called XXX.java
2. Compile it.
3. Read error message

EXPECTED VERSUS ACTUAL BEHAVIOR :
This is obvously a very stripped-down version of a larger program - but the point is to have one static object of an anonymous inner class refer to another,
final, static object of an anonymous inner class.

It's reasonable enough to require the static blocks & initializations to appear in the order they should execute, although it doesn't seem like it would be too
hard to work out a few dependencies. Really, it's just the compiler throwing the exception.


ERROR MESSAGES/STACK TRACES THAT OCCUR :
An exception has occurred in the compiler (1.4.0). 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.InternalError: class <anonymous buggy.XXX$1>
        at com.sun.tools.javac.v8.code.Scope.leave(Scope.java:129)
        at com.sun.tools.javac.v8.comp.Attr._case(Attr.java:463)
        at com.sun.tools.javac.v8.tree.Tree$Block.visit(Tree.java:539)
        at com.sun.tools.javac.v8.comp.Attr.attribTree(Attr.java:259)
        at com.sun.tools.javac.v8.comp.Attr.attribStat(Attr.java:296)
        at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1489)
        at com.sun.tools.javac.v8.comp.Attr.attribClass(Attr.java:1456)
        at com.sun.tools.javac.v8.JavaCompiler.compile(JavaCompiler.java:396)
        at com.sun.tools.javac.v8.Main.compile(Main.java:526)
        at com.sun.tools.javac.Main.compile(Main.java:32)
        at com.sun.tools.javac.Main.main(Main.java:23)



This bug can be reproduced always.

---------- BEGIN SOURCE ----------
// Class XXX.java
package buggy;
public class XXX {

    static {
new Object () { // Trimmed down from passing this object
                        // to a static method of another class
Object extra() {
return vary; // Not referring to vary removes the error
}
};
    }

    static final Object vary // also fails if private, public
= new Object () {
Object extra=null; // also fails if extend inner class with method
};

}


---------- END SOURCE ----------

CUSTOMER WORKAROUND :
Swap the two of them around:

// Class XXX.java
package buggy;
public class XXX {

    static final Object vary // also fails if private, public
= new Object () {
Object extra=null; // also fails if extend inner class with method
};

    static {
new Object () { // Trimmed down from passing this object
                        // to a static method of another class
Object extra() {
return vary; // Not referring to vary removes the error
}
};
    }
}
(Review ID: 146250)
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