@Test
	public void testMenuDataParsesMnemonicFromAmpersand() {
		MenuData menuData = new MenuData(new String[] { "One", "Two", "&Three" });
		assertEquals(menuData.getMnemonic(), 'T');
	}
Mnemonic should be 'T', parsed out of the location of the ampersand in
3rd argument in the menuPath.
The mnemonic is not explicitly set.
Ghidra/Framework/Docking/src/test/java/docking/action/MenuDataTest.java