*
   * <p>This method should return promptly; prefer to do work on a different thread where it is
   * convenient. It is invoked exactly once on service startup, even when {@link #startAsync} is
   * called multiple times.
   */
  @ForOverride
  protected abstract void doStart();

  /**
   * This method should be used to initiate service shutdown. The invocation of this method should

                }
            }

            assertEquals(3, validCount);
            assertTrue(offset > 0);
        }

        @Test
        @DisplayName("Should calculate combined size for multiple contexts")
        void testCombinedSizeCalculation() {
            CreateContextRequest[] contexts = new CreateContextRequest[5];
            int[] expectedSizes = { 16, 24, 32, 40, 48 };

        List<String> cmdList = Arrays.asList("echo", "hello");
        Consumer<ProcessBuilder> pbCall = pb -> {
            pb.redirectErrorStream(true);
        };

        try {
            // Start multiple processes
            JobProcess jobProcess1 = processHelper.startProcess(sessionId1, cmdList, pbCall);
            JobProcess jobProcess2 = processHelper.startProcess(sessionId2, cmdList, pbCall);

            assertEquals("implementation-test.txt", impl.getFileName());
        }

        @Test
        @DisplayName("Test multiple implementations with different values")
        void testMultipleImplementations() {
            // Create multiple implementations
            FileNotifyInformation addedImpl = createImplementation(FileNotifyInformation.FILE_ACTION_ADDED, "added.txt");

        // Then
        assertTrue(request instanceof ServerMessageBlock2Request);
        assertTrue(request instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Should handle multiple write operations")
    void testMultipleWrites() {
        // Given
        Configuration mockConfig = mock(Configuration.class);
        Smb2TreeDisconnectRequest request = new Smb2TreeDisconnectRequest(mockConfig);

			headers: http.Header{
				xhttp.AmzObjectAttributes: []string{"test1,test2"},
			},
			wantObjectAttrs: map[string]struct{}{
				"test1": {}, "test2": {},
			},
		},
		{
			name: "multiple header lines with some duplicates",
			headers: http.Header{
				xhttp.AmzObjectAttributes: []string{"test1,test2", "test3,test4", "test4,test3"},
			},
			wantObjectAttrs: map[string]struct{}{

        // Assert
        assertTrue(result);
        verify(signingDigest, times(1)).verify(largeData, offset, length, extraPad, message);
    }

    @Test
    @DisplayName("Test multiple sign operations in sequence")
    void testMultipleSignOperations() {
        // Arrange
        int iterations = 10;

        // Act
        for (int i = 0; i < iterations; i++) {

import jakarta.annotation.Resource;

/**
 * API action for admin document management.
 * Provides RESTful API endpoints for bulk document operations in the Fess search engine.
 * Supports indexing multiple documents with automatic field validation and default value assignment.
 */
public class ApiAdminDocumentsAction extends FessApiAdminAction {

   * present, or {@code Optional.empty()} if no such edge exists.
   *
   * <p>In an undirected network, this is equal to {@code edgeConnecting(nodeV, nodeU)}.
   *
   * @throws IllegalArgumentException if there are multiple parallel edges connecting {@code nodeU}
   *     to {@code nodeV}
   * @throws IllegalArgumentException if {@code nodeU} or {@code nodeV} is not an element of this
   *     network
   * @since 23.0
   */

it must not allow a single read to observe multiple values,
and it must not allow a single write to write multiple values.
</p>

<p>
All the following examples assume that `*p` and `*q` refer to
memory locations accessible to multiple goroutines.
</p>

<p>
Not introducing data races into race-free programs means not moving