@Override
		public void run() {
			if (service != null) {
				invokeInstanceMethod("dispose", service);
			}
		}
Setup DTM service such that the same instance if used across all test methods.
This assumes that a tool is not used and that the DefaultDataTypeManagerService 
is used.
Ghidra/Features/MicrosoftCodeAnalyzer/src/test/java/ghidra/app/cmd/data/AbstractCreateDataTypeModelTest.java