1 /**
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19 package org.apache.hadoop.hbase.util;
20
21 /**
22 * A generic way for querying Java properties.
23 */
24 public class GetJavaProperty {
25 public static void main(String args[]) {
26 if (args.length == 0) {
27 for (Object prop: System.getProperties().keySet()) {
28 System.out.println(prop + "=" + System.getProperty((String)prop, ""));
29 }
30 } else {
31 for (String prop: args) {
32 System.out.println(System.getProperty(prop, ""));
33 }
34 }
35 }
36 }