Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/HelloWorld.java @ 2471:37be97a58393
7010849: 5/5 Extraneous javac source/target options when building sa-jdi
Summary: Make code changes necessary to get rid of the '-source 1.4 -target 1.4' options.
Reviewed-by: dholmes, dcubed
| author | andrew |
|---|---|
| date | Fri, 01 Apr 2011 15:15:37 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2471
37be97a58393
7010849: 5/5 Extraneous javac source/target options when building sa-jdi
andrew
parents:
1552
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changeset
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2 * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. |
| 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
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diff
changeset
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20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot; | |
| 26 | |
| 27 import java.lang.reflect.*; | |
| 28 | |
| 29 public class HelloWorld { | |
| 30 private static String helloWorldString = "Hello, world!"; | |
| 31 private static volatile int helloWorldTrigger = 0; | |
| 32 private static final boolean useMethodInvoke = false; | |
| 33 private static Object lock = new Object(); | |
| 34 | |
| 35 public static void main(String[] args) { | |
| 36 int foo = a(); | |
| 37 | |
| 38 System.out.println("HelloWorld exiting. a() = " + foo); | |
| 39 } | |
| 40 | |
| 41 private static int a() { | |
| 42 return 1 + b(); | |
| 43 } | |
| 44 | |
| 45 private static int b() { | |
| 46 return 1 + c(); | |
| 47 } | |
| 48 | |
| 49 private static int c() { | |
| 50 return 1 + d("Hi"); | |
| 51 } | |
| 52 | |
| 53 private static int d(String x) { | |
| 54 System.out.println("HelloWorld.d() received \"" + x + "\" as argument"); | |
| 55 synchronized(lock) { | |
| 56 if (useMethodInvoke) { | |
| 57 try { | |
|
2471
37be97a58393
7010849: 5/5 Extraneous javac source/target options when building sa-jdi
andrew
parents:
1552
diff
changeset
|
58 Method method = HelloWorld.class.getMethod("e"); |
| 0 | 59 Integer result = (Integer) method.invoke(null, new Object[0]); |
| 60 return result.intValue(); | |
| 61 } | |
| 62 catch (Exception e) { | |
| 63 throw new RuntimeException(e.toString()); | |
| 64 } | |
| 65 } else { | |
| 66 | |
| 67 int i = fib(10); // 89 | |
| 68 long l = i; | |
| 69 float f = i; | |
| 70 double d = i; | |
| 71 char c = (char) i; | |
| 72 short s = (short) i; | |
| 73 byte b = (byte) i; | |
| 74 | |
| 75 int ret = e(); | |
| 76 | |
| 77 System.out.println("Tenth Fibonacci number in all formats: " + | |
| 78 i + ", " + | |
| 79 l + ", " + | |
| 80 f + ", " + | |
| 81 d + ", " + | |
| 82 c + ", " + | |
| 83 s + ", " + | |
| 84 b); | |
| 85 | |
| 86 return ret; | |
| 87 } | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 public static int e() { | |
| 92 System.out.println("Going to sleep..."); | |
| 93 | |
| 94 int i = 0; | |
| 95 | |
| 96 while (helloWorldTrigger == 0) { | |
| 97 if (++i == 1000000) { | |
| 98 System.gc(); | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 System.out.println(helloWorldString); | |
| 103 | |
| 104 while (helloWorldTrigger != 0) { | |
| 105 } | |
| 106 | |
| 107 return i; | |
| 108 } | |
| 109 | |
| 110 // Tree-recursive implementation for test | |
| 111 public static int fib(int n) { | |
| 112 if (n < 2) { | |
| 113 return 1; | |
| 114 } | |
| 115 return fib(n - 1) + fib(n - 2); | |
| 116 } | |
| 117 } |