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POCopying to global clipboard does not work with Java in Ubuntu
 

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    <p>The following code from a standalone application works in ubuntu:</p> <pre><code>import java.awt.Toolkit; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.StringSelection; import java.awt.datatransfer.UnsupportedFlavorException; import java.io.IOException; public class ClipboardTest { public static void main(String[] args) throws Exception { Clipboard clipBoard = Toolkit.getDefaultToolkit().getSystemClipboard(); // print the last copied thing System.out.println(clipBoard.getContents(null).getTransferData(DataFlavor.stringFlavor)); StringSelection data = new StringSelection("NOW"); clipBoard.setContents(data, data); // prints NOW System.out.println(clipBoard.getContents(null).getTransferData(DataFlavor.stringFlavor)); } } </code></pre> <p>Pasting (Ctrl+V) into a different application results in nothing; I expect "NOW". Calling the above code a second time gives the following exception:</p> <pre><code>Exception in thread "main" java.awt.datatransfer.UnsupportedFlavorException: Unicode String at sun.awt.datatransfer.ClipboardTransferable.getTransferData(ClipboardTransferable.java:160) </code></pre> <p>As a standalone application, this should work even after <a href="https://stackoverflow.com/a/8513761/194609">2011 security changes</a>. Copying via Ctrl+C from inside of a JTextField and then pasting elsewhere works.</p> <p>Have been unsuccessful on ubuntu 11.04 with both the latest java7 (jdk1.7.0_10) and jdk1.6.0_33; It <a href="https://stackoverflow.com/a/3592022/194609">should work</a> and does work as expected on windows 7 with the latest java7 and on mac osx 10.6 with java6_37. Also tried xubuntu 12.04 with those javas and it doesn't work there. Is this a linux/ubuntu bug?</p> <p><a href="https://stackoverflow.com/q/12707176/194609">Related question</a></p>
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    1. USKarussell
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    1. COFor better help sooner, post an [SSCCE](http://sscce.org/).
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    2. COYou might start from the [tutorial examples](http://docs.oracle.com/javase/tutorial/uiswing/dnd/intro.html).
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    3. COI don't need a tutorial. As I said this works (on windows+mac) but not on ubuntu. Someone with ubuntu here and could check if it works for him?
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