getMap()
                .compute(
                    k0(),
                    (k, v) -> {
                      assertEquals(k0(), k);
                      assertEquals(v0(), v);
                      throw new SomeUncheckedException();
                    }));
    expectUnchanged();
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentFunctionThrows() {
    assertThrows(

      @Override
      public V load(K key) {
        throw e;
      }
    };
  }

  /** Returns a {@link CacheLoader} that throws the given exception for every request. */
  static <K, V> CacheLoader<K, V> exceptionLoader(Exception e) {
    checkNotNull(e);
    return new CacheLoader<K, V>() {
      @Override
      public V load(K key) throws Exception {
        throw e;
      }
    };
  }

    FutureCallback<String> callback =
        new FutureCallback<String>() {
          @Override
          public void onSuccess(String result) {
            successCalls[0]++;
            throw exception;
          }

          @Override
          public void onFailure(Throwable t) {
            failureCalls[0]++;
          }
        };
    addCallback(future, callback, directExecutor());

            getMap()
                .compute(
                    k0(),
                    (k, v) -> {
                      assertEquals(k0(), k);
                      assertEquals(v0(), v);
                      throw new SomeUncheckedException();
                    }));
    expectUnchanged();
  }

  @MapFeature.Require({SUPPORTS_PUT, SUPPORTS_REMOVE})
  public void testCompute_absentFunctionThrows() {
    assertThrows(

  public int add(@ParametricNullness E element, int occurrences) {
    throw new UnsupportedOperationException();
  }

  @CanIgnoreReturnValue
  @Override
  public final boolean remove(@Nullable Object element) {
    return remove(element, 1) > 0;
  }

  @CanIgnoreReturnValue
  @Override
  public int remove(@Nullable Object element, int occurrences) {
    throw new UnsupportedOperationException();
  }

  @CanIgnoreReturnValue

    Class<?>
        clazz = enumValue.getDeclaringClass();
    try {
      return clazz.getDeclaredField(enumValue.name());
    } catch (NoSuchFieldException impossible) {
      throw new AssertionError(impossible);
    }
  }

  /**
   * Returns an optional enum constant for the given type, using {@link Enum#valueOf}. If the

                            len += 2;
                            if (len > 256) {
                                throw new RuntimeException("zero termination not found");
                            }
                        }
                        server.oemDomainName = new String(buffer, bufferIndex, len, UNI_ENCODING);

    }

    // --- Invalid/null usage: calling a method on null should throw NPE ---
    @Test
    void nullReference_throwsNullPointerException() {
        // Arrange
        SmbBasicFileInfo info = null;

        // Act & Assert: attempting to call any method on null should throw NPE
        Assertions.assertThrows(NullPointerException.class, () -> {

    }

    @Test
    @DisplayName("accept: propagates SmbException thrown by dependency")
    void accept_propagatesSmbException() throws Exception {
        // Arrange: filter delegates to isDirectory which may throw SmbException
        SmbFileFilter filter = f -> f.isDirectory();
        SmbException boom = new SmbException("io error");
        when(smbFile.isDirectory()).thenThrow(boom);

        // Act + Assert

        testProcessHelper.exitValue = 1;
        testProcessHelper.processOutput = "Generation failed";

        try {
            thumbnailJob.executeThumbnailGenerator();
            fail("Should throw JobProcessingException");
        } catch (JobProcessingException e) {
            assertTrue(e.getMessage().contains("Thumbnail Process terminated."));
        } catch (NullPointerException e) {