%import com.twosigma.beakerx.widget.Output
out = new Output()
OutputManager.setOutput(out)

t = new Thread({
    println("background thread start")
    for (i = 0; i < 20 ; i++) {
        Thread.sleep(1000)
        println("tick " + i)
        if (i % 5 == 3) System.err.println("stderr!")
        if (i % 6 == 2) display(HTML('any <b>MIME</b> <em>type</em>'))
        if (i % 7 == 4) out.display(new Plot(initHeight:150) << new Line(y: [0,5,2,3,11]))    
    }});
println("ready set go")
t.start()

println("some other cell")

display(HTML('any <b>MIME</b> <em>type</em>'))
display(new Plot(initHeight:150) << new Line(y: [0,11,2,8,1]))    

OutputManager.clearOutput()

OutputManager.setOutput(null)

t.stop()

OutputManager.setStandardOutput(new Output())

println("only stdout is captured")
System.err.println("stderr goes to its own cell")

OutputManager.clear()
OutputManager.setStandardOutput(null)

OutputManager.setStandardError(new Output())

println("stdout goes to its own cell")
System.err.println("only stderr is captured")

OutputManager.clear()
OutputManager.setStandardError(null)