[HARMONY-780] [classlib][util] unexpected ClassCastException for java.util.TreeMap.put(Object, new Object)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: Classlib
• Assignee: Paulex Yang
• Reporter: Vladimir Bossicard
• Created: 06/Jul/06 15:01
• Updated: 22/Sep/06 07:12
• Resolved: 18/Sep/06 06:38

Description

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)