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 import jdk.test.lib.Asserts;
  25 import jdk.test.lib.Platform;
  26 import java.util.stream.IntStream;
  27 import sun.hotspot.WhiteBox;
  28 
  29 public class CompilerUtils {
  30 
  31     private CompilerUtils() {
  32         // to prevent from instantiation
  33     }
  34 
  35     /**
  36      * Returns available compilation levels
  37      *
  38      * @return int array with compilation levels
  39      */
  40     public static int[] getAvailableCompilationLevels() {
  41         if (!WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompiler")) {
  42             return new int[0];

   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 package compiler.testlibrary;
  24 
  25 import jdk.test.lib.Asserts;
  26 import jdk.test.lib.Platform;
  27 import java.util.stream.IntStream;
  28 import sun.hotspot.WhiteBox;
  29 
  30 public class CompilerUtils {
  31 
  32     private CompilerUtils() {
  33         // to prevent from instantiation
  34     }
  35 
  36     /**
  37      * Returns available compilation levels
  38      *
  39      * @return int array with compilation levels
  40      */
  41     public static int[] getAvailableCompilationLevels() {
  42         if (!WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompiler")) {
  43             return new int[0];