java - Right Click to Select Row jTable -

i've been trying action listener select row mouse right clicks. referred alot of posts , these of them:

stack overflow

code guru

code ranch

heres code:

t1 name of table

public void clicklistener(){         final rowpopup pops = new rowpopup(jtable1);         jtable1.addmouselistener(new mouseadapter(){             public void mouseclicked(mouseevent me){                 if(swingutilities.isrightmousebutton(me)){                     int row = jtable1.rowatpoint( me.getpoint() );                     jtable1.changeselection( row, 0, false, false );                      pops.getrow(jtable1.getselectedrow());                     pops.show(me.getcomponent(),me.getx(),me.gety());                    }             }         });     } 

now heres happens.

when right click on table no selected row, exception in thread "awt-eventqueue-0" java.lang.arrayindexoutofboundsexception: -1 error however, when there existing selected row on table, code works , chooses on row right click into.

what want achieve when right click anywhere on rows if there no selected row, part right click selected. ideas how work?