The following JSR 105 TCK test is failing in JCK 6:
api/javax_xml/crypto/dsig/XMLSignatureFactory/index.html#instance[Instance2012]

Here is the relavent portion of the jtr file:
java.lang.IllegalArgumentException: missing provider
at sun.security.jca.GetInstance.getService(GetInstance.java:62)
at sun.security.jca.GetInstance.getInstance(GetInstance.java:190)
at javax.xml.crypto.dsig.XMLSignatureFactory.getInstance(XMLSignatureFactory.java:262)
at javasoft.sqe.tests.api.javax.xml.crypto.dsig.XMLSignatureFactory.instanceTests.Instance2012(instanceTests.java:320)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at javasoft.sqe.javatest.lib.MultiTest.invokeTestCase(MultiTest.java:399)
at javasoft.sqe.jck.lib.XMLDSigProviderTest.invokeTestCase(XMLDSigProviderTest.java:104)
at javasoft.sqe.javatest.lib.MultiTest.run(MultiTest.java:195)
at javasoft.sqe.javatest.lib.MultiTest.run(MultiTest.java:127)
at javasoft.sqe.tests.api.javax.xml.crypto.dsig.XMLSignatureFactory.instanceTests.main(instanceTests.java:32)
Instance2012: Failed. Test case throws exception: java.lang.IllegalArgumentException: missing provider

The jtr file is attached