1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test LimitSharedSizes 25 * @summary Test handling of limits on shared space size 26 * @library /testlibrary 27 * @run main LimitSharedSizes 28 */ 29 30 import com.oracle.java.testlibrary.*; 31 32 public class LimitSharedSizes { 33 private static class SharedSizeTestData { 34 public String optionName; 35 public String optionValue; 36 public String expectedErrorMsg; 37 38 public SharedSizeTestData(String name, String value, String msg) { 39 optionName = name; 40 optionValue = value; 41 expectedErrorMsg = msg; 42 } 43 } 44 45 private static final SharedSizeTestData[] testTable = { 46 // values in this part of the test table should cause failure 47 // (shared space sizes are deliberately too small) 48 new SharedSizeTestData("-XX:SharedReadOnlySize", "4M", "read only"), 49 new SharedSizeTestData("-XX:SharedReadWriteSize","4M", "read write"), 50 51 // Known issue, JDK-8038422 (assert() on Windows) 52 // new SharedSizeTestData("-XX:SharedMiscDataSize", "500k", "miscellaneous data"), 53 54 // Too small of a misc code size should not cause a vm crash. 55 // It should result in the following error message: 56 // The shared miscellaneous code space is not large enough 57 // to preload requested classes. Use -XX:SharedMiscCodeSize= 58 // to increase the initial size of shared miscellaneous code space. 59 new SharedSizeTestData("-XX:SharedMiscCodeSize", "20k", "miscellaneous code"), 60 61 // these values are larger than default ones, but should 62 // be acceptable and not cause failure 63 new SharedSizeTestData("-XX:SharedReadOnlySize", "20M", null), 64 new SharedSizeTestData("-XX:SharedReadWriteSize", "20M", null), 65 new SharedSizeTestData("-XX:SharedMiscDataSize", "20M", null), 66 new SharedSizeTestData("-XX:SharedMiscCodeSize", "20M", null) 67 }; 68 69 public static void main(String[] args) throws Exception { 70 String fileName = "test.jsa"; 71 72 for (SharedSizeTestData td : testTable) { 73 String option = td.optionName + "=" + td.optionValue; 74 System.out.println("testing option <" + option + ">"); 75 76 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 77 "-XX:+UnlockDiagnosticVMOptions", 78 "-XX:SharedArchiveFile=./" + fileName, 79 option, 80 "-Xshare:dump"); 81 82 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 83 84 if (td.expectedErrorMsg != null) { 85 output.shouldContain("The shared " + td.expectedErrorMsg 86 + " space is not large enough"); 87 88 output.shouldHaveExitValue(2); 89 } else { 90 output.shouldNotContain("space is not large enough"); 91 output.shouldHaveExitValue(0); 92 } 93 } 94 } 95 }