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annotate src/share/vm/runtime/reflectionCompat.hpp @ 2904:1916da1d3e11
Merge.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 08 Jun 2011 17:26:49 +0200 |
parents | f95d63e2154a |
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0 | 1 /* |
1972 | 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
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4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
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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 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_REFLECTIONCOMPAT_HPP |
26 #define SHARE_VM_RUNTIME_REFLECTIONCOMPAT_HPP | |
27 | |
0 | 28 // During the development of the JDK 1.4 reflection implementation |
29 // based on dynamic bytecode generation, it was hoped that the bulk of | |
30 // the native code for reflection could be removed. Unfortunately | |
31 // there is currently a significant cost associated with loading the | |
32 // stub classes which impacts startup time. Until this cost can be | |
33 // reduced, the JVM entry points JVM_InvokeMethod and | |
34 // JVM_NewInstanceFromConstructor are still needed; these and their | |
35 // dependents currently constitute the bulk of the native code for | |
36 // reflection. If this cost is reduced in the future, the | |
37 // NativeMethodAccessorImpl and NativeConstructorAccessorImpl classes | |
38 // can be removed from sun.reflect and all of the code guarded by this | |
39 // flag removed from the product build. (Non-product builds, | |
40 // specifically the "optimized" target, would retain the code so they | |
41 // could be dropped into earlier JDKs for comparative benchmarking.) | |
42 | |
43 //#ifndef PRODUCT | |
44 # define SUPPORT_OLD_REFLECTION | |
45 //#endif | |
1972 | 46 |
47 #endif // SHARE_VM_RUNTIME_REFLECTIONCOMPAT_HPP |