import com.google.common.collect.ListMultimap;
import com.google.common.collect.testing.features.MapFeature;
import java.util.Arrays;
import java.util.List;
import org.junit.Ignore;

/**
 * Testers for {@link ListMultimap#putAll(Object, Iterable)}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.

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

    /**
     * Returns a copy of {@link System#getProperties()} in a thread-safe manner.
     *
     * @return {@link System#getProperties()} obtained in a thread-safe manner.
     */

        }
        return defaultValue;
    }

    public DataStoreParams newInstance() {
        return new DataStoreParams(params);
    }

    public void putAll(final Map<String, String> map) {
        params.putAll(map);
    }

    public boolean containsKey(final String key) {
        return params.containsKey(key);
    }

    public Map<String, Object> asMap() {

    } catch (UnsupportedOperationException expected) {
    }
    try {
      multimapView.putAll("baz", Collections.singleton(3));
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }
    try {
      multimapView.putAll(multimap);
      fail("UnsupportedOperationException expected");
    } catch (UnsupportedOperationException expected) {
    }

                contributor.contribute(userPropertiesMap);
            }
            Properties newProperties = new Properties();
            newProperties.putAll(userPropertiesMap);
            mavenExecutionRequest.setUserProperties(newProperties);
        }
    }

                    tmp.setProperty(key, entry.getValue());
                }
                envVars = tmp;
            }

            props.putAll(envVars);
        }
    }

  }

  // Null support depends on the underlying table and function.
  @J2ktIncompatible
  @GwtIncompatible // NullPointerTester
  @Override
  public void testNullPointerInstance() {}

  // put() and putAll() aren't supported.
  @Override
  public void testPut() {
    try {
      table.put("foo", 1, 'a');
      fail("Expected UnsupportedOperationException");
    } catch (UnsupportedOperationException expected) {
    }

    try {
      map.put("b", "2");
      fail();
    } catch (UnsupportedOperationException expected) {
    }

    try {
      map.putAll(ImmutableMap.of("b", "2"));
      fail();
    } catch (UnsupportedOperationException expected) {
    }

    try {
      map.entrySet().iterator().next().setValue("one");
      fail();

          }
        }
        return ImmutableMap.builder().putAll(sourceMap).buildOrThrow();
      }
    },
    BUILDER_PUT_ALL_ENTRIES {
      @Override
      public Map<Object, Object> create(List<?> keys) {
        return ImmutableMap.builder()
            .putAll(Lists.transform(keys, k -> Maps.immutableEntry(k, "dummy value")))
            .buildOrThrow();
      }
    },

 * #getUnchecked}, {@link #get(Object, Callable)}, and {@link #getAll} are implemented in terms of
 * {@code get}; {@link #getAllPresent} is implemented in terms of {@code getIfPresent}; {@link
 * #putAll} is implemented in terms of {@link #put}, {@link #invalidateAll(Iterable)} is implemented
 * in terms of {@link #invalidate}. The method {@link #cleanUp} is a no-op. All other methods throw
 * an {@link UnsupportedOperationException}.