1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.surefire.api.util.internal;
20
21 import java.lang.management.ManagementFactory;
22 import java.util.Map;
23
24 import static org.apache.maven.surefire.shared.lang3.JavaVersion.JAVA_17;
25 import static org.apache.maven.surefire.shared.lang3.JavaVersion.JAVA_RECENT;
26
27 /**
28 * Similar to Java 7 java.util.Objects.
29 *
30 * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
31 * @since 2.20
32 */
33 public final class ObjectUtils {
34 private ObjectUtils() {
35 throw new IllegalStateException("no instantiable constructor");
36 }
37
38 public static <T> T useNonNull(T target, T fallback) {
39 return target == null ? fallback : target;
40 }
41
42 public static Map<String, String> systemProps() {
43 return ManagementFactory.getRuntimeMXBean().getSystemProperties();
44 }
45
46 /**
47 * @return true if SecurityManager is supported (even if deprecated) in JDK (up to 17)
48 */
49 public static boolean isSecurityManagerSupported() {
50 return JAVA_RECENT.atMost(JAVA_17);
51 }
52 }