import org.codelibs.fess.unit.UnitFessTestCase;

public class SystemUtilTest extends UnitFessTestCase {

    public void test_getSearchEngineHttpAddress_null() {
        // Clear the system property to test null case
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);
        System.clearProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {

					<fmt:formatDate value="${fe:parseDate(doc.last_modified)}" type="BOTH" pattern="yyyy-MM-dd HH:mm" />
					<c:if test="${doc.last_modified==null || doc.last_modified==''}">
						<fmt:formatDate value="${fe:parseDate(doc.created)}" type="BOTH" pattern="yyyy-MM-dd HH:mm" />
					</c:if>
					<c:if test="${doc.content_length!=null && doc.content_length!=''}">
						<div class="d-sm-none"></div>
						<span class="d-none d-sm-inline-block">&nbsp;</span>

    }

    /**
     * Test that assertPropertyNotNull throws exception for null input
     */
    public void test_assertPropertyNotNull_withNull() {
        try {
            // Create a test instance that extends FessLabels
            TestFessLabels labels = new TestFessLabels();
            labels.testAssertPropertyNotNull(null);
            fail("Should throw IllegalArgumentException");

      return spliterator.tryAdvance(action);
    }

    @Override
    @Nullable GeneralSpliterator<E> trySplit() {
      Spliterator<E> split = spliterator.trySplit();
      return split == null ? null : new GeneralSpliteratorOfObject<>(split);
    }
  }

  @IgnoreJRERequirement // *should* be redundant with the annotation on SpliteratorTester
  private static final class GeneralSpliteratorOfPrimitive<

      return spliterator.tryAdvance(action);
    }

    @Override
    @Nullable GeneralSpliterator<E> trySplit() {
      Spliterator<E> split = spliterator.trySplit();
      return split == null ? null : new GeneralSpliteratorOfObject<>(split);
    }
  }

  private static final class GeneralSpliteratorOfPrimitive<
          E extends @Nullable Object, C, S extends Spliterator.OfPrimitive<E, C, S>>

        // Test convert with null text - this might throw exception
        String text = null;
        String field = "content";

        try {
            List<String> results = converter.convert(text, field, "en");
            assertNotNull(results);
        } catch (Exception e) {
            // Expected behavior - null text might cause exception
            assertNotNull(e);
        }

        if (this.scope != null && this.scope.length() != 0) {
            result += this.scope.hashCode();
        }
        return result;
    }

    @Override
    public boolean equals(final Object obj) {
        Name n;

        if (!(obj instanceof Name)) {
            return false;
        }
        n = (Name) obj;
        if (this.scope == null && n.scope == null) {

    try {
      val provider = Proxy.getInvocationHandler(getMethod.invoke(null, sslSocket)) as AlpnProvider
      if (!provider.unsupported && provider.selected == null) {
        log("ALPN callback dropped: HTTP/2 is disabled. " + "Is alpn-boot on the boot class path?")
        return null
      }
      return if (provider.unsupported) null else provider.selected
    } catch (e: InvocationTargetException) {

        final Pair<T1, T2> other = (Pair<T1, T2>) obj;
        if (first == null) {
            if (other.first != null) {
                return false;
            }
        } else if (!first.equals(other.first)) {
            return false;
        }
        if (second == null) {
            if (other.second != null) {
                return false;
            }

    /**
     * Gets the source from which the model was read.
     *
     * @return The source from which the model was read, never {@code null}.
     */
    @Nonnull
    ModelSource getSource();

    /**
     * Gets the file model.
     *
     * @return the file model, never {@code null}.
     */
    @Nonnull
    Model getFileModel();

    /**