boolean hasStackTrace = capturedOutput.stream().anyMatch(line -> line.startsWith("\tat "));
        assertTrue("Should contain stack trace entries", hasStackTrace);
    }

    public void test_processThreadDump_withNullConsumer() {
        try {
            ThreadDumpUtil.processThreadDump(null);
            fail("Should throw NullPointerException for null consumer");
        } catch (NullPointerException e) {