public ProcessWrapper sendInput(final String input) {
    checkStarting();
    final PrintStream ps = new PrintStream(process.getOutputStream());
    ps.println(input);
    ps.flush();
    return this;
  }
Wraps spawned {@link Process} to capture output and provide interaction with the process.

@since GemFire 4.1.1
geode-junit/src/main/java/org/apache/geode/test/process/ProcessWrapper.java