final Process process = processBuilder.start();
            try (ProcessReader processReader = new ProcessReader(process)) {

                processReader.readAll();

                String standardOutput = processReader.getOutput();
                String errorOutput = processReader.getError();
                int exitValue = process.exitValue();
            }

            final Process process = processBuilder.start();
            try (CustomProcessor processor = new CustomProcessor();
                    ProcessReader processReader = new ProcessReader(process, processor)) {

                processReader.readAll();

                String errorOutput = processReader.getError();
                int exitValue = process.exitValue();
            }