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From "Vladimir Ivanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-780) [classlib][util] unexpected ClassCastException for java.util.TreeMap.put(Object, new Object)
Date Thu, 06 Jul 2006 08:02:29 GMT
[classlib][util] unexpected ClassCastException for java.util.TreeMap.put(Object, new Object)
--------------------------------------------------------------------------------------------

         Key: HARMONY-780
         URL: http://issues.apache.org/jira/browse/HARMONY-780
     Project: Harmony
        Type: Bug

    Reporter: Vladimir Ivanov


The Harmony method java.util.TreeMap.put(Object, new Object) throws unexpected ClassCastException
while according to spec should return null.

====================== test.java ========================
import java.util.TreeMap;

public class test { 

  public static void main (String[] args) { 
      System.out.println("" + new TreeMap().put(new Object(), new Object()));
   }   
}
=====================================================

Output:
C:\tmp\tmp17>C:\jrockit-jdk1.5.0-windows-ia32\bin\java.exe -showversion test
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-win-ia32, R25.0.0-75, GC: System optimized
over throughput (initial strategy singleparpar))

null

C:\tmp\tmp17>C:\harmony\trunk_0427\deploy\jdk\jre\bin\java.exe -showversion test
java version 1.5 (subset)

(c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
Exception in thread "main" java.lang.ClassCastException: java.lang.Object incompatible with
java.lang.Comparable
        at java.util.TreeMap.toComparable(TreeMap.java:79)
        at java.util.TreeMap.rbInsert(TreeMap.java:1230)
        at java.util.TreeMap.put(TreeMap.java:1174)
        at test.main(test.java:6)


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