- **I/O Operations** (`org.codelibs.core.io`) - File handling, resource management, stream utilities, and traversal utilities for efficient resource processing
- **Reflection** (`org.codelibs.core.lang`) - Class loading, method/field access, type introspection utilities, and generics support

    }

    @Test
    @DisplayName("Should return correct TID from TreeConnectResponse interface")
    void testGetTid() throws Exception {
        // Given - set tree ID using reflection
        Method setTreeIdMethod = ServerMessageBlock2.class.getDeclaredMethod("setTreeId", int.class);
        setTreeIdMethod.setAccessible(true);
        setTreeIdMethod.invoke(response, 12345);

        // When

- Fix detection of image filesystem, disk metrics for devicemapper, detection of OOM Kills on 5.0+ linux kernels. ([#92919](https://github.com/kubernetes/kubernetes/pull/92919), [@dashpole](https://github.com/dashpole)) [SIG API Machinery, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation and Node]

gment","checkClone","cloneNode","noCloneChecked","defaultValue","option","wrapMap","thead","col","tr","td","_default","getAll","setGlobalEval","refElements","tbody","tfoot","colgroup","caption","th","optgroup","rhtml","buildFragment","scripts","selection","ignored","wrap","attached","fragment","nodes","htmlPrefilter","createTextNode","rtypenamespace","returnTrue","returnFalse","on","types","one","origFn","event","off","leverageNative","isSetup","saved","isTrigger","delegateType","stopPropagation...

import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link Reflection} */
@NullUnmarked
public class ReflectionTest extends TestCase {

  public void testGetPackageName() throws Exception {
    assertEquals("java.lang", Reflection.getPackageName(Iterable.class));
    assertEquals("java", Reflection.getPackageName("java.MyType"));
    assertEquals("java.lang", Reflection.getPackageName(Iterable.class.getName()));

        // Mock the handshake process to do nothing complex
        mockResponse(HTTP_OK, "OK", null, null);

        // Act & Assert
        assertDoesNotThrow(() -> spiedConnection.getResponseCode());
        // Use reflection to verify handshake method is called
        assertDoesNotThrow(() -> spiedConnection.getResponseCode());
        assertDoesNotThrow(() -> spiedConnection.getInputStream());
    }

    /**

        final UrlQueue<?> urlQueue = new UrlQueueImpl<>();
        urlQueue.setUrl("http://example.com/");
        urlQueue.setDepth(1);

        when(urlFilter.match(anyString())).thenReturn(true);

        // Use reflection to access protected method
        final java.lang.reflect.Method method = CrawlerThread.class.getDeclaredMethod("isValid", UrlQueue.class);
        method.setAccessible(true);

     * Uses scroll and bulk delete operations for efficient deletion of large result sets.
     *
     * @param callback The callback to configure the search request for identifying documents to delete.
     * @throws OpenSearchAccessException if the deletion fails.
     */
    public void delete(final Consumer<SearchRequestBuilder> callback) {

        response.getServerData().encryptionKeyLength = 8;
        // Domain name in OEM encoding (ASCII) with null terminator
        byte[] domainBytes = "DOMAIN\0".getBytes("US-ASCII");
        // Use reflection to set protected byteCount field
        int byteCountValue = 8 + domainBytes.length;
        setByteCount(response, byteCountValue);
        byte[] buffer = new byte[byteCountValue];
        int bufferIndex = 0;

     * This method first refreshes the index, then performs the deletion, and logs the result.
     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param index the index name to delete documents from
     * @param queryBuilder the query to match documents for deletion
     * @return the number of documents that were deleted
     */