JDK build @
/net/koori.sfbay/onestop/jdk/1.4.1/latest/binaries/solaris-sparc/
java version "1.4.1-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-beta-b08)
Java HotSpot(TM) Client VM (build 1.4.1-beta-b08, mixed mode)

Note:
It passed with Hopper 07 and Merlin FCS

How to reproduce
1. go to
/net/sqesvr/export/vsn/SECURITY/merlin_jdk_tonga/home/testbase/src/Permissions/threadGroupStopTest
2. sh Run.sh
3. you will see --
java version "1.4.1-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-beta-b08)
Java HotSpot(TM) Client VM (build 1.4.1-beta-b08, mixed mode)
Note: threadGroupStopTest.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
-----------------------------------

localTestThread started....
Thread Cleaned Up...
Test Name = threadGroupStopTest
Test Args = void Expected Result = false
Test Result = PASS: the test got Security exception as expected

-----------------------------------

localTestThread started....
#
# HotSpot Virtual Machine Error, Internal Error
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Client VM (1.4.1-beta-b08 mixed mode)
#
# Error ID: 43493349474E41545552450E4350500025 01
#
# Problematic Thread: prio=5 tid=0xb1ea8 nid=0xa runnable
#
Abort

=====================================================
The following are expected result got from merlin FCS

sh Run.sh
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)
Note: privilegedClasses/localTestThread.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
Note: threadGroupStopTest.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
-----------------------------------

Test Name = threadGroupStopTest
Test Args = void Expected Result = false
Test Result = PASS: the test got Security exception as expected

-----------------------------------

localTestThread started....