Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/VMObjectFactory.java @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2012, 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime; | |
| 26 | |
| 27 import java.lang.reflect.*; | |
| 28 import sun.jvm.hotspot.debugger.*; | |
| 29 import sun.jvm.hotspot.types.*; | |
| 30 | |
| 31 /** <P> This class implements a factory mechanism for the objects | |
| 32 created to wrap Addresses. It requires that the class passed in | |
| 33 implement a constructor taking with the following signature: </P> | |
| 34 | |
| 35 <P> | |
| 36 <CODE> public <Type>(sun.jvm.hotspot.Address) | |
| 37 </CODE> | |
| 38 </P> | |
| 39 | |
| 40 <P> It is used to write shorter code when wrapping Addresses since | |
| 41 null checks are no longer necessary. In addition, it is a central | |
| 42 location where a canonicalizing map could be implemented if one | |
| 43 were desired (though the current system is designed to not require | |
| 44 one.) </P> | |
| 45 */ | |
| 46 | |
| 47 public class VMObjectFactory { | |
| 48 public static Object newObject(Class clazz, Address addr) | |
| 49 throws ConstructionException { | |
| 50 try { | |
| 51 if (addr == null) { | |
| 52 return null; | |
| 53 } | |
| 54 | |
| 55 Constructor c = clazz.getConstructor(new Class[] { | |
| 56 Address.class | |
| 57 }); | |
| 58 return c.newInstance(new Object[] { addr }); | |
| 59 } | |
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60 catch (java.lang.reflect.InvocationTargetException ite) { |
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61 if (ite.getTargetException() instanceof RuntimeException) { |
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62 throw (RuntimeException)ite.getTargetException(); |
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63 } |
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64 throw new ConstructionException(ite); |
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da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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65 } |
| 0 | 66 catch (Exception e) { |
| 67 throw new ConstructionException(e); | |
| 68 } | |
| 69 } | |
| 70 } |