private final long timeout;

        /**
         * Constructor for ProcessDestroyer.
         * @param p The process to monitor.
         * @param ist The input stream thread.
         * @param timeout The destruction timeout.
         */
        public ProcessDestroyer(final Process p, final InputStreamThread ist, final long timeout) {
            this.p = p;
            this.ist = ist;

            assertNotNull(destroyerClass, "ProcessDestroyer class should exist");
            assertTrue("ProcessDestroyer should extend TimerTask", java.util.TimerTask.class.isAssignableFrom(destroyerClass));
        } catch (final ClassNotFoundException e) {
            fail("ProcessDestroyer inner class should exist");
        }
    }