import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/** Tests for {@link MoreObjects}. */
@GwtCompatible
@NullUnmarked
public class MoreObjectsTest extends TestCase {
  public void testFirstNonNull_withNonNull() {
    String s1 = "foo";
    String s2 = MoreObjects.firstNonNull(s1, "bar");
    assertSame(s1, s2);

    Long n1 = 42L;

     * @param problems the problems while building the effectiveToolchains, if any.
     */
    public DefaultToolchainsBuildingResult(PersistedToolchains effectiveToolchains, List<Problem> problems) {
        this.effectiveToolchains = effectiveToolchains;
        this.problems = (problems != null) ? problems : new ArrayList<>();
    }

    @Override
    public PersistedToolchains getEffectiveToolchains() {
        return effectiveToolchains;
    }

 * under the License.
 */
package org.apache.maven.properties.internal;

import java.util.Properties;

/**
 * @since 3.2.3
 */
public class SystemProperties {
    /**
     * Thread-safe System.properties copy implementation.
     */
    public static void addSystemProperties(Properties props) {
        props.putAll(getSystemProperties());
    }

    /**

/**
 * Converter for SQL dates.
 *
 * @author higa
 */
public class SqlDateConverter implements Converter {

    /**
     * The date pattern.
     */
    protected String pattern;

    /**
     * Constructs an instance.
     *
     * @param pattern
     *            the date pattern
     */
    public SqlDateConverter(final String pattern) {
        assertArgumentNotEmpty("pattern", pattern);

/**
 * @author wyukawa
 *
 */
public class NullArgumentExceptionTest {

    @Before
    public void setUp() throws Exception {
        LocaleUtil.setDefault(() -> Locale.JAPANESE);
    }

    @After
    public void tearDown() throws Exception {
        LocaleUtil.setDefault(null);
    }

    /**
     * @throws Exception
     */
    @Test
    public void testErrorMessage_ja() throws Exception {

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *

/**
 * TODO: javadoc.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public abstract class TestStringListGenerator implements TestListGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public List<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;

import org.jline.console.CommandRegistry;

import static java.util.Objects.requireNonNull;

public class ShellCommandRegistryHolder implements AutoCloseable {
    private final List<CommandRegistry> commandRegistries;

    public ShellCommandRegistryHolder() {
        this.commandRegistries = new ArrayList<>();
    }

    public void addCommandRegistry(CommandRegistry commandRegistry) {

/**
 * Create multisets of strings for tests.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public abstract class TestStringMultisetGenerator implements TestMultisetGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public Multiset<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;

      Suppliers.ofInstance(
          new StatsCounter() {
            @Override
            public void recordHits(int count) {}

            @Override
            public void recordMisses(int count) {}

            @SuppressWarnings("GoodTime") // b/122668874
            @Override
            public void recordLoadSuccess(long loadTime) {}

            @SuppressWarnings("GoodTime") // b/122668874