@Override
	public void gotoFailed(Exception exc) {
		navigatable = null;
		setDialogEnabled(true);
		setStatusText("ERROR: " + exc.getMessage());
		initializeContents();
	}
Popup up the dialog in the center of the tool.
@param nav the Navigatable
@param addr the address
@param tool the PluginTool
Ghidra/Features/Base/src/main/java/ghidra/app/util/navigation/GoToAddressLabelDialog.java