TermQuery termQuery3 = new TermQuery(new Term("field3", "value3"));

        boolQueryBuilder.add(termQuery1, BooleanClause.Occur.MUST);
        boolQueryBuilder.add(termQuery2, BooleanClause.Occur.SHOULD);
        boolQueryBuilder.add(termQuery3, BooleanClause.Occur.MUST_NOT);
        BooleanQuery booleanQuery = boolQueryBuilder.build();

        QueryContext context = new QueryContext("test", false);

            Class<? extends RootAction> actionClass2 = exception2.getActionClass();
            assertNotNull(actionClass2);

            // No ClassCastException should occur
        } catch (ClassCastException e) {
            fail("ClassCastException should not occur: " + e.getMessage());
        }
    }

    @Test
    public void test_genericTypeSafety_verifyInheritance() {

        } catch (JobProcessingException e) {
            assertTrue(e.getMessage().contains("Thumbnail Process terminated."));
        } catch (NullPointerException e) {
            // May occur if ServletContext is not fully initialized
            // This is acceptable in test environment
        }
    }

    // Test executeThumbnailGenerator with timeout
    @Test

        assertTrue(result);
        assertEquals("No indices should be created with empty targets", 0, testClient.createdIndices.size());
        assertEquals("No reindex should occur with empty targets", 0, testClient.reindexPairs.size());
    }

    // ==========================================================================
    // reindexConfigIndices - atomic alias switching

        assertNotNull(result);
        assertTrue(result.contains("Session Id:"));
        assertNotNull(suggestJob.sessionId);
        assertEquals(15, suggestJob.sessionId.length());
        // Cache clearing may not always occur in test environment
        // The real behavior depends on the actual SuggestJob implementation
    }

    // Test execute method with failure
    @Test
    public void test_execute_failure() {

        boolBuilder.add(new TermQuery(new Term("title", "fess")), BooleanClause.Occur.MUST);
        boolBuilder.add(new PrefixQuery(new Term("content", "search")), BooleanClause.Occur.SHOULD);
        boolBuilder.add(new WildcardQuery(new Term("url", "*.html")), BooleanClause.Occur.MUST_NOT);
        BooleanQuery boolQuery = boolBuilder.build();
        BoostQuery boostQuery = new BoostQuery(boolQuery, 5.5f);

    /**
     * Performs a chat completion request.
     *
     * @param request the chat request containing messages and parameters
     * @return the chat response from the LLM
     * @throws LlmException if an error occurs during the request
     */
    LlmChatResponse chat(LlmChatRequest request);

    /**
     * Performs a streaming chat completion request.
     * The callback is invoked for each chunk of the response.
     *

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.llm;

import org.codelibs.fess.exception.FessSystemException;

/**
 * Exception thrown when an error occurs during LLM operations.
 *
 * @author FessProject
 */
public class LlmException extends FessSystemException {

    private static final long serialVersionUID = 1L;

    /** Error code for rate limit (HTTP 429). */

        }
    }

    /**
     * Processes a non-streaming chat request.
     *
     * @param request the HTTP request
     * @param response the HTTP response
     * @throws IOException if an I/O error occurs
     */
    protected void processChatRequest(final HttpServletRequest request, final HttpServletResponse response) throws IOException {
        if (!"POST".equalsIgnoreCase(request.getMethod())) {

     * @param request The HTTP request.
     * @param response The HTTP response.
     * @param chain The filter chain.
     * @throws IOException If an I/O error occurs.
     * @throws ServletException If a servlet error occurs.
     */
    protected void processSuggestRequest(final HttpServletRequest request, final HttpServletResponse response, final FilterChain chain)
            throws IOException, ServletException {