The jdbcrowset testsuite passed in b52, fails in b53

The entire testsuite: javax_sql_rowset/jdbcrowset fails with JDK 1.6.0-b53 on all platforms (windows, solaris, linux) and databases (oracle, sqlserver).

Creating a new instance of JdbcRowSetImpl will throw an UnsupportedOperationException.

Output of testcase JdbcRowset1_001:
[2005-09-27T00:10:56.24] Before the start of the test
[2005-09-27T00:10:56.24] Unexpected Exception Operation not yet supported
[2005-09-27T00:10:56.24] Error: JdbcRowset1_001 : JdbcRowSet Test failed
[2005-09-27T00:10:56.24] com.sun.j2se_sqe.jdbc.utils.TestFailureException: JdbcRowSet Test failed
[2005-09-27T00:10:56.24] at JdbcRowset1_001.doTest(JdbcRowset1_001.java:120)
[2005-09-27T00:10:56.24] at JdbcRowset1_001.main(JdbcRowset1_001.java:169)
[2005-09-27T00:10:56.24] Caused by: java.lang.UnsupportedOperationException: Operation not yet supported
[2005-09-27T00:10:56.24] at com.sun.rowset.JdbcRowSetImpl.setTypeMap(JdbcRowSetImpl.java:4972)
[2005-09-27T00:10:56.24] at com.sun.rowset.JdbcRowSetImpl.<init>(JdbcRowSetImpl.java:348)
[2005-09-27T00:10:56.24] at JdbcRowset1_001.doTest(JdbcRowset1_001.java:101)
[2005-09-27T00:10:56.24] ... 1 more
[2005-09-27T00:10:56.24] # Test level exit status: 1
Additional tests:

javax_sql_rowset/joinrowset/JoinRowset3_003
javax_sql_rowset/joinrowset/JoinRowset3_004
javax_sql_rowset/joinrowset/JoinRowset3_005
javax_sql_rowset/joinrowset/JoinRowset3_010