ServicetTag not created for SUNWj5rtx package (JDK 5.0ux with ST feauture backported).

Build : 1.5.0-18-nb-b99
Bundles location : /net/nightsvr.sfbay/export5/test/ServiceTag
Platforms : solaris-sparcv9

When JRE is installed from SUNWj5rt package, ServiceTag instance is created as expected. But when 64-bit JRE is installed on it (from SUNWj5rtx package), no ServiceTag instance is created for it. This issue is NOT present in JDK 6u10+.
Two instance_urn entries should be present in ${JRE}/lib/servicetag/servicetag file, and two ServiceTag instances should be created.