This testcase exercises ReferenceType.SourceDebugExtension command.
The test starts SourceDebugExtensionDebuggee class, requests referenceTypeId
for this class by VirtualMachine.ClassesBySignature command, then
performs ReferenceType.SourceDebugExtension command and checks that
no any unexpected ERROR is returned.
Fields inherited from org.apache.harmony.jpda.tests.jdwp.share.JDWPSyncTestCase