private void removeBinTestDir() {
		try {
			File binDir = getClassesDirectory();
			if (binDir.isDirectory()) {
				FileUtilities.deleteDir(binDir);
			}
		}
		catch (FileNotFoundException e) {
			System.err.println("Unable to delete test dir?: " + e.getMessage());
		}
	}
This directory is bin in eclipse; it will be a resources directory in the classpath when run
in batch mode.   The directory is one specifically created by and for this test.
@return class output directory
@throws FileNotFoundException Could not find class output directory
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/datamgr/DataTypeManagerPluginTest.java