IZ81204: JAVA.UTIL.HASHMAP.PUTALL() DOESN'T INVOKE PUT() METHOD

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  Given a test case <OSB>1<CSB>, IBMJDK6 fails while RI passes.
  <OSB>1<CSB> Test Case:
      public class MockHashMap extends HashMap {
          private boolean valid = false;
          public Object put(Object key, Object value) {
              valid = true;
              return null;
          }
          public boolean isValid() {
              return valid;
          }
      }
      public void testHashMap_putAll() {
          MockHashMap mockHashMap = new MockHashMap();
          HashMap hashMap = new HashMap();
          hashMap.put("key", "value");
          mockHashMap.putAll(hashMap);
          assertTrue(mockHashMap.isValid());
          assertEquals(0, mockHashMap.size());
      }
  

Local fix

Problem summary

• Our code of HashMap.putAll() follows the spec. But we made a
  internal putImpl() method in HashMap, both putAll() and put()
  method of HashMap will invoke this common putImpl() for
  performance improvement. Customer's app strictly requires
  putAll() method must call put() method.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9
  .
  The java.util.HashMap.putAll() methods has been updated to
  prevent such a problem to occur.
  .
  To obtain the fix:
  Install build 20100803 or later
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSN

     UP