HasAssociation with multiple association is failing in all platforms in 6u21.

here is the testcase :
http://nicole1.sfbay.sun.com:8080/JavawsMustangIntegTest//integrationService/HasMultipleAssociation.jnlp

Test Code:
String mime = "x-application/abc";
        String []exts = {"abc","xyz"};
        boolean result = is.hasAssociation(mime,exts);

http://nicole1.sfbay.sun.com:8080/JavawsMustangIntegTest//integrationService/HasMultipleAssociation1.jnlp

Test Code:
String mime = "x-application/abc";
        String []exts = {"abc"};
String mime1 = "x-application/xyz";
        String []exts1 = {"xyz"};
        boolean result = is.removeAssociation(mime,exts);
boolean result1 = is.removeAssociation(mime1,exts1);

Reproduced machine: urts073.india.sun.com:1 vncpassword: vnc123.
Affected TestCases : 4

HasMultipleAssociation
HasMultipleAssociation1
SignedHasMultipleAssociation
SignedHasMultipleAssociation1

from suite "suite_javaws_integService".