Ctr+c and ctr+v in jdk1.4

Hello,
In a JTree, I want to use ctr+c and ctr+v to do tree node's copy and paste:
miCopy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,KeyEvent.CTRL_MAS
K));
and this programme runs OK in jdk1.3, but in jdk1.4 the shortcuts seem useless.
Then I found it's jdk itself using these shortcuts.
How can I get my shortcuts back?

That is not a Ctrl key problem i have faced this too you can try to set the focus on that component then try
for applet try this:
          this.requestFocus();
          jrootpane.grabFocus();

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