How to Detect Right Click Linux Java JTable

gistfile1.txt

jt.addMouseListener(new MouseAdapter() {
			public void mouseReleased(MouseEvent e) {				 
				int r = jt.rowAtPoint(e.getPoint());
				if (r >= 0 && r < jt.getRowCount()) {
					jt.setRowSelectionInterval(r, r);
				} else {
					jt.clearSelection();
				}

				int rowindex = jt.getSelectedRow();
				JPopupMenu popup = mypopupmnu();
				if (rowindex < 0)
					return;

				if (e.isPopupTrigger() || SwingUtilities.isRightMouseButton(e)) {
					// JPopupMenu popup = mypopupmnu();
					popup.show(e.getComponent(), e.getX(), e.getY());
				}
			}
		});