}

    @Test
    public void test_setError_withException_noRequest() {
        // Test setError with exception when no HTTP request is available
        try {
            WebApiUtil.setError(500, new RuntimeException("Test error"));
        } catch (Exception e) {
            fail("setError should handle missing request gracefully: " + e.getMessage());
        }
    }

    @Test

            method.setAccessible(true);
            return (ClassificationMeta) method.invoke(obj, param);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

                    java.util.function.BiFunction<org.opensearch.action.update.UpdateRequestBuilder, org.opensearch.search.SearchHit, org.opensearch.action.update.UpdateRequestBuilder> processor) {
                throw new RuntimeException("Test exception");
            }
        };
        ComponentUtil.register(exceptionClient, "searchEngineClient");

        String result = updateLabelJob.execute();
        assertNotNull(result);

                                }
                                return values.nextValue();
                            } catch (IOException e) {
                                throw new RuntimeException(e);
                            }
                        }

                        @Override
                        public void setDocument(int docid) {
                            this.docId = docid;

        // Verify that the method was called
        verify(mockResponse, times(1)).reset();
    }

    @Test
    void testGetException() {
        Exception testException = new RuntimeException("Test Exception");
        when(mockResponse.getException()).thenReturn(testException);
        assertEquals(testException, mockResponse.getException());

        // Test null exception

        JobNotFoundException exception = new JobNotFoundException("test");

        assertTrue(exception instanceof FessSystemException);
        assertTrue(exception instanceof RuntimeException);
        assertTrue(exception instanceof Exception);
        assertTrue(exception instanceof Throwable);
    }

    @Test
    public void test_serialization() {

                    // accessibility controls here.
                    f.setAccessible(true);
                    f.set(null, null);
                } catch (IllegalAccessException e) {
                    throw new RuntimeException(e);
                }
            });
        }

        public void setRuntimeJavaHome(File runtimeJavaHome) {
            BuildParams.runtimeJavaHome = requireNonNull(runtimeJavaHome);
        }

     * Verifies behavior when close throws an exception.
     */
    @Test
    void testClose_throwsException() {
        doThrow(new RuntimeException("Failed to close")).when(smbTree).close();

        assertThrows(RuntimeException.class, () -> smbTree.close(), "Should propagate exception when close fails");
    }

    /**
     * Test for AutoCloseable functionality.

          try {
            if (shouldWait.get()) {
              firstBarrier.await();
              secondBarrier.await();
            }
          } catch (Exception e) {
            throw new RuntimeException(e);
          }
        };
    TestCustomScheduler scheduler = new TestCustomScheduler();
    Cancellable future = scheduler.schedule(null, newScheduledThreadPool(10), task);
    firstBarrier.await();

          try {
            if (shouldWait.get()) {
              firstBarrier.await();
              secondBarrier.await();
            }
          } catch (Exception e) {
            throw new RuntimeException(e);
          }
        };
    TestCustomScheduler scheduler = new TestCustomScheduler();
    Cancellable future = scheduler.schedule(null, newScheduledThreadPool(10), task);
    firstBarrier.await();