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PORedirecting System.out to JTextPane
 

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    <p>I have a class (shown below) that extends <code>JPanel</code> and contains a <code>JTextPane</code>. I want to redirect <code>System.out</code> and <code>System.err</code> to my <code>JTextPane</code>. My class does not seem to work. When I run it, it does redirect the system prints, but they do not print to my <code>JTextPane</code>. Please help!</p> <p><strong>Note:</strong> The calls are only redirected when the application launches. But any time after launch, the <code>System.out</code> calls are not redirected to the <code>JTextPane</code>. (ie, if I place a <code>System.out.prinln();</code> in the class, it will be called, but if it is placed in a <code>actionListener</code> for later use, it does not redirect).</p> <pre><code>public class OSXConsole extends JPanel { public static final long serialVersionUID = 21362469L; private JTextPane textPane; private PipedOutputStream pipeOut; private PipedInputStream pipeIn; public OSXConsole() { super(new BorderLayout()); textPane = new JTextPane(); this.add(textPane, BorderLayout.CENTER); redirectSystemStreams(); textPane.setBackground(Color.GRAY); textPane.setBorder(new EmptyBorder(5, 5, 5, 5)); } private void updateTextPane(final String text) { SwingUtilities.invokeLater(new Runnable() { public void run() { Document doc = textPane.getDocument(); try { doc.insertString(doc.getLength(), text, null); } catch (BadLocationException e) { throw new RuntimeException(e); } textPane.setCaretPosition(doc.getLength() - 1); } }); } private void redirectSystemStreams() { OutputStream out = new OutputStream() { @Override public void write(final int b) throws IOException { updateTextPane(String.valueOf((char) b)); } @Override public void write(byte[] b, int off, int len) throws IOException { updateTextPane(new String(b, off, len)); } @Override public void write(byte[] b) throws IOException { write(b, 0, b.length); } }; System.setOut(new PrintStream(out, true)); System.setErr(new PrintStream(out, true)); } } </code></pre>
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    1. COI deleted my answer because it was wrong.
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    2. COAre you seeing some calls get redirected ans some not?
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    3. COonly calls from inside the OSXConsole class are printed to the JTextPane.
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