commons-file/src/main/java/info/monitorenter/util/ExceptionUtil.java
public static InputStreamTracer findMatchInSystemErr(final String expectMatch) throws IOException {
    InputStream systemout = captureSystemErrForDebuggingPurposesOnly(true);
    InputStreamTracer result = new InputStreamTracer(systemout, expectMatch,
        Charset.defaultCharset());
    Thread traceThread = new Thread(result);
    traceThread.setDaemon(true);
    traceThread.start();
    return result;
  }
public static InputStreamTracer findMatchInSystemErr(final String expectMatch) throws IOException {
    InputStream systemout = captureSystemErrForDebuggingPurposesOnly(true);
    InputStreamTracer result = new InputStreamTracer(systemout, expectMatch,
        Charset.defaultCharset());
    Thread traceThread = new Thread(result);
    traceThread.setDaemon(true);
    traceThread.start();
    return result;
  }
public static InputStreamTracer findMatchInSystemErr ( final String expectMatch ) throws IOException { InputStream systemout = captureSystemErrForDebuggingPurposesOnly ( true ) ; InputStreamTracer result = new InputStreamTracer ( systemout , expectMatch , Charset . defaultCharset ( ) ) ; Thread traceThread = new Thread ( result ) ; traceThread . setDaemon ( true ) ; traceThread . start ( ) ; return result ; }
Returns an instance to a runnable running in a separate Thread that tries to match the expected
output in {@link System#err}.
<p>
Ensure that you found the expected String in the input stream given by calling
{@link info.monitorenter.util.ExceptionUtil.InputStreamTracer#isMatched()}. But take into account that it is time -
critical (concurrency) if your result was found.
<p>
Prefer this instead of {@link #captureSystemErrForDebuggingPurposesOnly(boolean)} as this will
avoid blocking your application.
<p>

@return an instance to a runnable running in a separate Thread that tries to match the expected
output in {@link System#out}.
@throws java.io.IOException
if something goes wrong.
Returns an instance to a runnable running in a separate Thread that tries to match the expected output in { @link System#err } . <p > Ensure that you found the expected String in the input stream given by calling { @link info . monitorenter . util . ExceptionUtil . InputStreamTracer#isMatched () } . But take into account that it is time - critical ( concurrency ) if your result was found . <p > Prefer this instead of { @link #captureSystemErrForDebuggingPurposesOnly ( boolean ) } as this will avoid blocking your application . <p >