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 /* 25 * @test 26 * @bug 8034775 27 * @summary Ensures correct minimal number of compiler threads (provided by -XX:CICompilerCount=) 28 * @library /testlibrary 29 */ 30 import com.oracle.java.testlibrary.*; 31 32 public class NumCompilerThreadsCheck { 33 34 public static void main(String[] args) throws Exception { 35 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-XX:CICompilerCount=-1"); 36 OutputAnalyzer out = new OutputAnalyzer(pb.start()); 37 38 String expectedOutput = "CICompilerCount of -1 is invalid"; 39 out.shouldContain(expectedOutput); 40 41 if (isZeroVm()) { 42 String expectedLowWaterMarkText = "must be at least 0"; 43 out.shouldContain(expectedLowWaterMarkText); 44 } 45 } 46 47 private static boolean isZeroVm() { 48 String vmName = System.getProperty("java.vm.name"); 49 if (vmName == null) { 50 throw new RuntimeException("No VM name"); 51 } 52 if (vmName.toLowerCase().contains("zero")) { 53 return true; 54 } 55 return false; 56 } 57 }