1 /* 2 * Copyright (c) 2014, 2015, 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 /* 25 * @test 26 * @bug 8059510 27 * @summary Test SharedSymbolTableBucketSize option 28 * @library /testlibrary 29 */ 30 31 import com.oracle.java.testlibrary.*; 32 33 public class SharedSymbolTableBucketSize { 34 public static void main(String[] args) throws Exception { 35 int bucket_size = 8; 36 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 37 "-Xshare:dump", "-XX:+PrintSharedSpaces", 38 "-XX:+UnlockDiagnosticVMOptions", 39 "-XX:SharedArchiveFile=./SharedSymbolTableBucketSize.jsa", 40 "-XX:SharedSymbolTableBucketSize=" + Integer.valueOf(bucket_size)); 41 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 42 output.shouldContain("Loading classes to share"); 43 output.shouldHaveExitValue(0); 44 45 String s = output.firstMatch("Average bucket size : .*"); 46 Float f = Float.parseFloat(s.substring(25)); 47 int size = Math.round(f); 48 if (size != bucket_size) { 49 throw new Exception("FAILED: incorrect bucket size " + size + 50 ", expect " + bucket_size); 51 } 52 53 54 // Invalid SharedSymbolTableBucketSize input 55 String input[] = {"-XX:SharedSymbolTableBucketSize=-1", 56 "-XX:SharedSymbolTableBucketSize=2.5"}; 57 for (int i = 0; i < input.length; i++) { 58 pb = ProcessTools.createJavaProcessBuilder( 59 "-Xshare:dump", "-XX:+PrintSharedSpaces", 60 "-XX:+UnlockDiagnosticVMOptions", 61 "-XX:SharedArchiveFile=./SharedSymbolTableBucketSize.jsa", 62 input[i]); 63 output = new OutputAnalyzer(pb.start()); 64 output.shouldContain("Improperly specified VM option"); 65 } 66 } 67 }