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 CodelistTest 26 * @bug 8054889 27 * @library .. 28 * @build DcmdUtil MethodIdentifierParser CodelistTest 29 * @run main CodelistTest 30 * @summary Test of diagnostic command Compiler.codelist 31 */ 32 33 import java.io.BufferedReader; 34 import java.io.StringReader; 35 import java.lang.reflect.Method; 36 37 public class CodelistTest { 38 39 /** 40 * This test calls Jcmd (diagnostic command tool) Compiler.codelist and then parses the output, 41 * making sure that the first methods in the list is valid by reflection. 42 * 43 * Output example: 44 * 45 * 6 0 java.lang.System.arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V [0x00007f7b49200910, 0x00007f7b49200aa0 - 0x00007f7b49200d30] 46 * 2 3 java.lang.String.indexOf(II)I [0x00007f7b49200d90, 0x00007f7b49200f60 - 0x00007f7b49201490] 47 * 7 3 java.lang.Math.min(II)I [0x00007f7b4922f010, 0x00007f7b4922f180 - 0x00007f7b4922f338] 48 * 8 3 java.lang.String.equals(Ljava/lang/Object;)Z [0x00007f7b4922fb10, 0x00007f7b4922fd40 - 0x00007f7b49230698] 49 * 9 3 java.lang.AbstractStringBuilder.ensureCapacityInternal(I)V [0x00007f7b49232010, 0x00007f7b492321a0 - 0x00007f7b49232510] 50 * 10 1 java.lang.Object.<init>()V [0x00007f7b49233e90, 0x00007f7b49233fe0 - 0x00007f7b49234118] 51 * 52 */ 53 54 public static void main(String arg[]) throws Exception { 55 int ok = 0; 56 int fail = 0; 57 58 // Get output from dcmd (diagnostic command) 59 String result = DcmdUtil.executeDcmd("Compiler.codelist"); 60 BufferedReader r = new BufferedReader(new StringReader(result)); 61 62 // Grab a method name from the output 63 String line; 64 int count = 0; 65 66 while((line = r.readLine()) != null) { 67 count++; 68 69 String[] parts = line.split(" "); 70 // int compileID = Integer.parseInt(parts[0]); 71 // int compileLevel = Integer.parseInt(parts[1]); 72 String methodPrintedInLogFormat = parts[2]; 73 74 // skip inits and clinits - they can not be reflected 75 if (methodPrintedInLogFormat.contains("<init>")) { 76 continue; 77 } 78 if (methodPrintedInLogFormat.contains("<clinit>")) { 79 continue; 80 } 81 if (methodPrintedInLogFormat.contains("MethodHandle")) { 82 continue; 83 } 84 85 MethodIdentifierParser mf = new MethodIdentifierParser(methodPrintedInLogFormat); 86 Method m; 87 try { 88 m = mf.getMethod(); 89 } catch (NoSuchMethodException e) { 90 m = null; 91 } 92 if (m == null) { 93 throw new Exception("Test failed on: " + methodPrintedInLogFormat); 94 } 95 if (count > 10) { 96 // Testing 10 entries is enough. Lets not waste time. 97 break; 98 } 99 } 100 } 101 }