test/com/sun/servicetags tests may disable and enable system registry for testing purpose.

test/com/sun/servicetag/JavaServiceTagTest.java tests with the system registry disabled while test/com/sun/servicetag/JavaServiceTagTest1.java and SystemRegistryTest.java test with the system registry enabled by setting the system property "servicetag.sthelper.supported" to true.

Since com.sun.servicetag.Registry implementation only checks the system property once, the test/com/sun/servicetag/JavaServiceTagTest1.java and SystemRegistryTest.java failed when running in samevm mode as the system registry was disabled by JavaServiceTagTest.java.