@Override
		public void closeTool(PluginTool t) {
			// If we call this, then the entire test VM will exit, which is bad
			// System.exit(0);
		}
A dummy version of {@link PluginTool} that tests can use when they need an instance of
the PluginTool, but do not wish to use a real version
Ghidra/Framework/Project/src/test/java/ghidra/framework/plugintool/DummyPluginTool.java