// Assert
        assertNotNull(handle);
        verify(mockDcerpcHandle, times(1)).sendrecv(any(MsrpcLsarOpenPolicy2.class));
        // We cannot directly assert the 'opened' field as it's private, but successful construction implies it.
    }

    @Test
    void constructor_shouldHandleNullServerSuccessfully() throws IOException {
        // Arrange
        String server = null;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * The {@code Immutable} annotation indicates that the object is immutable, i.e.
 * none of its field can be changed.  This also ensures that the type is
 * {@link ThreadSafe}.
 *
 * @see ThreadSafe
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)
@ThreadSafe

package org.codelibs.fess.app.web.api.admin.elevateword;

import org.codelibs.fess.app.web.admin.elevateword.CreateForm;

/**
 * Request body for creating elevate word via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

import org.codelibs.fess.app.web.admin.fileconfig.CreateForm;

/**
 * Request body for creating file configuration via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

package org.codelibs.fess.app.web.api.admin.scheduler;

import org.codelibs.fess.app.web.admin.scheduler.CreateForm;

/**
 * Request body for creating scheduler via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

package org.codelibs.fess.app.web.api.admin.dataconfig;

import org.codelibs.fess.app.web.admin.dataconfig.CreateForm;

/**
 * Request body for creating data config via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

import org.codelibs.fess.app.web.admin.dict.stemmeroverride.CreateForm;

/**
 * Request body for creating stemmer override dictionary via REST API.
 * Extends CreateForm to inherit validation and field definitions.
 */
public class CreateBody extends CreateForm {

    /**
     * Creates a new CreateBody instance.
     */
    public CreateBody() {
    }

    }

    // Test annotation on field (should not compile, but test for completeness)
    public void test_fieldCannotBeAnnotated() {
        // Verify that Secured annotation's target does not include FIELD
        Target target = Secured.class.getAnnotation(Target.class);
        ElementType[] targetTypes = target.value();
        assertFalse(Arrays.asList(targetTypes).contains(ElementType.FIELD));
    }

    * API fields previously capable of storing and returning either `[]` and `null` via JSON API requests (for example, the Endpoints `subsets` field) can now store only `null` when created using the protobuf content-type or stored in etcd using protobuf serialization (the default in 1.6+). JSON API clients should tolerate `null` values for such fields, and treat `null` and `[]` as equivalent in meaning unless specifically documented...

        final NtlmPasswordAuthentication cloned = new NtlmPasswordAuthentication();
        cloneInternal(cloned, this);
        return cloned;
    }

    /**
     * Clone internal fields from one NtlmPasswordAuthentication to another.
     *
     * @param to the target authentication object to copy to
     * @param from the source authentication object to copy from
     */