@Override
		public void actionPerformed(ActionEvent e) {
			Clipboard systemClipboard = GClipboard.getSystemClipboard();
			String text = textArea.getText();
			StringTransferable transferable = new StringTransferable(text);
			systemClipboard.setContents(transferable, null);
		}
used by all constructors to finish initialization of the object
Ghidra/Framework/Docking/src/main/java/docking/widgets/ScrollableTextArea.java