@Override
        public java.io.InputStream getInputStream() {
            return new java.io.ByteArrayInputStream(new byte[0]);
        }

        @Override
        public java.io.InputStream getErrorStream() {
            return new java.io.ByteArrayInputStream(new byte[0]);
        }
    }

    private static class TestInputStreamThread extends InputStreamThread {
        private final String output;

            return null;
        }

        @Override
        public java.io.InputStream getInputStream() {
            return null;
        }

        @Override
        public java.io.InputStream getErrorStream() {
            return null;
        }
    }

    private static class TestInputStreamThread extends InputStreamThread {
        private final String output;

            return null;
        }

        @Override
        public java.io.InputStream getInputStream() {
            return null;
        }

        @Override
        public java.io.InputStream getErrorStream() {
            return null;
        }
    }

    // Mock FessConfig implementation
    private class MockFessConfig extends TestFessConfig {
        private static final long serialVersionUID = 1L;