1 package org.apache.maven.surefire.api.util.internal;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.lang.management.ManagementFactory;
23 import java.util.Map;
24
25 import static org.apache.maven.surefire.shared.lang3.JavaVersion.JAVA_17;
26 import static org.apache.maven.surefire.shared.lang3.JavaVersion.JAVA_RECENT;
27
28 /**
29 * Similar to Java 7 java.util.Objects.
30 *
31 * @author <a href="mailto:tibordigana@apache.org">Tibor Digana (tibor17)</a>
32 * @since 2.20
33 */
34 public final class ObjectUtils
35 {
36 private ObjectUtils()
37 {
38 throw new IllegalStateException( "no instantiable constructor" );
39 }
40
41 public static <T> T useNonNull( T target, T fallback )
42 {
43 return target == null ? fallback : target;
44 }
45
46 public static Map<String, String> systemProps()
47 {
48 return ManagementFactory.getRuntimeMXBean().getSystemProperties();
49 }
50
51 /**
52 * @return true if SecurityManager is supported (even if deprecated) in JDK (up to 17)
53 */
54 public static boolean isSecurityManagerSupported()
55 {
56 return JAVA_RECENT.atMost( JAVA_17 );
57 }
58 }