// Verify that SearchEngineUtil is a utility class with private constructor
        try {
            SearchEngineUtil.class.getDeclaredConstructor().newInstance();
            fail("Should not be able to instantiate utility class");
        } catch (Exception e) {
            // Expected - utility classes should have private constructors

 *
 * <pre>
 * copyBeanToBean(srcBean, destBean, excludeNull().dateConverter("date", "MM/dd"));
 * </pre>
 *
 * @author koichik
 */
public abstract class CopyOptionsUtil {

    /**
     * Do not instantiate.
     */
    protected CopyOptionsUtil() {
    }

    /**
     * Returns a {@link CopyOptions} with the specified property names to include in the operation.
     *
     * @param propertyNames

 */
public abstract class SerializeUtil {

    /**
     * Do not instantiate.
     */
    protected SerializeUtil() {
    }

    private static final int BYTE_ARRAY_SIZE = 8 * 1024;

    /**
     * Default set of allowed class name patterns for deserialization.
     * This helps prevent deserialization attacks by restricting which classes can be instantiated.
     */
    private static final Set<String> DEFAULT_ALLOWED_PATTERNS =

import java.util.Iterator;
import org.junit.Ignore;

/**
 * Tests for {@code Multiset.entrySet}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

Note that when adding a lazy property to an existing class, you need to check if instances of the class are instantiated via ObjectFactory. Most classes are instantiated this way, but it's possible that a class without any lazy properties was never updated to use it. A tell-tale sign that an object is not instantiated via the ObjectFactory are direct calls to the constructor with new.

### Existing properties in existing classes

 *
 * @param <K> the key type of the map to be tested.
 * @param <V> the value type of the map to be tested.
 * @author George van den Driessche
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked

 * when the expected present count is correct.
 *
 * @author Chris Povirk
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

import org.codelibs.core.exception.IllegalAccessRuntimeException;

/**
 * Utility class for {@link Field} operations.
 *
 * @author higa
 */
public abstract class FieldUtil {

    /**
     * Do not instantiate.
     */
    protected FieldUtil() {
    }

    /**
     * Returns the value of a {@code static} field represented by the given {@link Field}.
     *
     * @param <T> the type of the field

/**
 * Class for traversing resources.
 *
 * @author taedium
 * @see ResourceHandler
 * @see TraversalUtil
 */
public abstract class ResourceTraversalUtil {

    /**
     * Do not instantiate.
     */
    protected ResourceTraversalUtil() {
    }

    /**
     * Traverses resources contained in the file system.
     *
     * @param rootDir the root directory (must not be {@literal null})

 * that contain elements.
 *
 * @param <C> the type of the container
 * @param <E> the type of the container's contents
 * @author George van den Driessche
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
@NullMarked