Mercurial > hg > graal-jvmci-8

annotate jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotResolvedJavaFieldImpl.java @ 22672:1bbd4a7c274b

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Rename jdk.internal.jvmci to jdk.vm.ci
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Thu, 08 Oct 2015 17:28:41 -0700
parents jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotResolvedJavaFieldImpl.java@47f047ae2b4b
children a130b51efb07
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1 /*
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2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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.
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22 */
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1bbd4a7c274b Rename jdk.internal.jvmci to jdk.vm.ci
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23 package jdk.vm.ci.hotspot;
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24
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25 import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
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26 import static jdk.vm.ci.hotspot.HotSpotVMConfig.config;
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28 import java.lang.annotation.Annotation;
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29 import java.lang.reflect.Field;
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30
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31 import jdk.vm.ci.common.JVMCIError;
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32 import jdk.vm.ci.meta.JavaType;
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33 import jdk.vm.ci.meta.LocationIdentity;
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34 import jdk.vm.ci.meta.MetaAccessProvider;
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35 import jdk.vm.ci.meta.ModifiersProvider;
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36 import jdk.vm.ci.meta.ResolvedJavaField;
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37 import jdk.vm.ci.meta.ResolvedJavaType;
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38 import jdk.vm.ci.options.Option;
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39 import jdk.vm.ci.options.OptionType;
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40 import jdk.vm.ci.options.OptionValue;
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41
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42 /**
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43 * Represents a field in a HotSpot type.
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44 */
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45 class HotSpotResolvedJavaFieldImpl implements HotSpotResolvedJavaField, HotSpotProxified {
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46
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47 static class Options {
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48 //@formatter:off
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49 @Option(help = "Mark well-known stable fields as such.", type = OptionType.Debug)
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50 public static final OptionValue<Boolean> ImplicitStableValues = new OptionValue<>(true);
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51 //@formatter:on
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52 }
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53
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54 private final HotSpotResolvedObjectTypeImpl holder;
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55 private final String name;
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56 private JavaType type;
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57 private final int offset;
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58
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59 /**
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60 * This value contains all flags as stored in the VM including internal ones.
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61 */
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62 private final int modifiers;
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63 private final LocationIdentity locationIdentity = new FieldLocationIdentity(this);
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64
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65 public static class FieldLocationIdentity extends LocationIdentity {
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66 HotSpotResolvedJavaField inner;
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67
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68 public FieldLocationIdentity(HotSpotResolvedJavaFieldImpl inner) {
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69 this.inner = inner;
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70 }
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71
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72 @Override
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73 public boolean isImmutable() {
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74 return false;
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75 }
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76
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77 @Override
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78 public boolean equals(Object obj) {
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79 if (this == obj) {
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80 return true;
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81 }
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82 if (obj instanceof FieldLocationIdentity) {
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83 FieldLocationIdentity fieldLocationIdentity = (FieldLocationIdentity) obj;
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84 return inner.equals(fieldLocationIdentity.inner);
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85
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86 }
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87 return false;
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88 }
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89
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90 @Override
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91 public int hashCode() {
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92 return inner.hashCode();
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93 }
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94
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95 @Override
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96 public String toString() {
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97 return inner.getName();
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98 }
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99 }
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100
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101 HotSpotResolvedJavaFieldImpl(HotSpotResolvedObjectTypeImpl holder, String name, JavaType type, long offset, int modifiers) {
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102 this.holder = holder;
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103 this.name = name;
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104 this.type = type;
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105 assert offset != -1;
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106 assert offset == (int) offset : "offset larger than int";
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107 this.offset = (int) offset;
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108 this.modifiers = modifiers;
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109 }
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110
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111 @Override
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112 public boolean equals(Object obj) {
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113 if (this == obj) {
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114 return true;
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115 }
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116 if (obj instanceof HotSpotResolvedJavaField) {
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117 HotSpotResolvedJavaFieldImpl that = (HotSpotResolvedJavaFieldImpl) obj;
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118 if (that.offset != this.offset || that.isStatic() != this.isStatic()) {
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119 return false;
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120 } else if (this.holder.equals(that.holder)) {
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121 assert this.name.equals(that.name) && this.type.equals(that.type);
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122 return true;
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123 }
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124 }
14525
5e55de0379d9 fixed bug in HotSpotResolvedJavaField.equals
Doug Simon <doug.simon@oracle.com>
parents: 14158
diff changeset
125 return false;
14158
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
126 }
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
127
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
128 @Override
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
129 public int hashCode() {
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
130 return name.hashCode();
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
131 }
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
132
fd7fcd2d2072 replaced == with .equals() for comparisons between JavaMethod/JavaField/JavaType values
Doug Simon <doug.simon@oracle.com>
parents: 14138
diff changeset
133 @Override
6539
2463eb24b644 Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6525
diff changeset
134 public int getModifiers() {
22011
4c9d4fe1cbd8 Add ModifiersProvider.isSynthetic, isVarArgs and isBridge.
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 21798
diff changeset
135 return modifiers & ModifiersProvider.jvmFieldModifiers();
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
136 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
137
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
138 @Override
6950
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
139 public boolean isInternal() {
22581
3884a98ebcde consistently use HotSpotVMConfig.config() for static access to the HotSpotVMConfig instance
Doug Simon <doug.simon@oracle.com>
parents: 22569
diff changeset
140 return (modifiers & config().jvmAccFieldInternal) != 0;
6950
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
141 }
41938af2b3d8 modifications to support non-perm-gen changes in HotSpot
Doug Simon <doug.simon@oracle.com>
parents: 6539
diff changeset
142
10065
5ba3763d6986 HotSpotResolvedJavaField: check if method is called from snippet/replacements (GRAAL-290)
Bernhard Urban <bernhard.urban@jku.at>
parents: 10063
diff changeset
143 /**
12628
c36bdee8ca29 added type check for object before reading a field value from it during compilation
Doug Simon <doug.simon@oracle.com>
parents: 12559
diff changeset
144 * Determines if a given object contains this field.
15023
652564fe42d5 Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents: 15018
diff changeset
145 *
13823
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
146 * @return true iff this is a non-static field and its declaring class is assignable from
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
147 * {@code object}'s class
12628
c36bdee8ca29 added type check for object before reading a field value from it during compilation
Doug Simon <doug.simon@oracle.com>
parents: 12559
diff changeset
148 */
c36bdee8ca29 added type check for object before reading a field value from it during compilation
Doug Simon <doug.simon@oracle.com>
parents: 12559
diff changeset
149 public boolean isInObject(Object object) {
15311
820c6d353358 added ModifiersProvider as superinterface for ResolvedJava[Method|Field|Type] and implemented all checks against modifiers as default methods
Doug Simon <doug.simon@oracle.com>
parents: 15259
diff changeset
150 if (isStatic()) {
13823
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
151 return false;
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
152 }
18223
17c98fad6980 converted HotSpotResolvedObjectType to an interface
Doug Simon <doug.simon@oracle.com>
parents: 18187
diff changeset
153 return getDeclaringClass().isAssignableFrom(HotSpotResolvedObjectTypeImpl.fromObjectClass(object.getClass()));
12628
c36bdee8ca29 added type check for object before reading a field value from it during compilation
Doug Simon <doug.simon@oracle.com>
parents: 12559
diff changeset
154 }
c36bdee8ca29 added type check for object before reading a field value from it during compilation
Doug Simon <doug.simon@oracle.com>
parents: 12559
diff changeset
155
5629
26a060cc58ca Initial implementation of closed world analysis by iteratively expanding the universe starting at method entry points.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 5554
diff changeset
156 @Override
18223
17c98fad6980 converted HotSpotResolvedObjectType to an interface
Doug Simon <doug.simon@oracle.com>
parents: 18187
diff changeset
157 public HotSpotResolvedObjectTypeImpl getDeclaringClass() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
158 return holder;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
159 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
160
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
161 @Override
6539
2463eb24b644 Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6525
diff changeset
162 public String getName() {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
163 return name;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
164 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
165
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
166 @Override
6539
2463eb24b644 Cleanup of Graal API: Rename methods so that it follows the getXxx naming convention and so that they are similar to the names of the java.lang.reflect classes. Remove unused methods.
Christian Wimmer <christian.wimmer@oracle.com>
parents: 6525
diff changeset
167 public JavaType getType() {
20878
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
168 // Pull field into local variable to prevent a race causing
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
169 // a ClassCastException below
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
170 JavaType currentType = type;
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
171 if (currentType instanceof HotSpotUnresolvedJavaType) {
14047
fde464340755 don't allow unresolved field types to hang around
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14012
diff changeset
172 // Don't allow unresolved types to hang around forever
20878
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
173 HotSpotUnresolvedJavaType unresolvedType = (HotSpotUnresolvedJavaType) currentType;
673e0b242d4d fixed race in HotSpotResolvedJavaFieldImpl.getType()
Doug Simon <doug.simon@oracle.com>
parents: 20821
diff changeset
174 ResolvedJavaType resolved = unresolvedType.reresolve(holder);
14047
fde464340755 don't allow unresolved field types to hang around
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14012
diff changeset
175 if (resolved != null) {
fde464340755 don't allow unresolved field types to hang around
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14012
diff changeset
176 type = resolved;
fde464340755 don't allow unresolved field types to hang around
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14012
diff changeset
177 }
fde464340755 don't allow unresolved field types to hang around
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 14012
diff changeset
178 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
179 return type;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
180 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
181
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
182 public int offset() {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
183 return offset;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
184 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
185
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
186 @Override
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
187 public String toString() {
16481
e7fc65330742 moved format(String format, JavaField field) from MetaUtil to be a default method in JavaField
Doug Simon <doug.simon@oracle.com>
parents: 16383
diff changeset
188 return format("HotSpotField<%H.%n %t:") + offset + ">";
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
189 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
190
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
191 @Override
9984
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
192 public boolean isSynthetic() {
22581
3884a98ebcde consistently use HotSpotVMConfig.config() for static access to the HotSpotVMConfig instance
Doug Simon <doug.simon@oracle.com>
parents: 22569
diff changeset
193 return (config().syntheticFlag & modifiers) != 0;
9984
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
194 }
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
195
12559
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
196 /**
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
197 * Checks if this field has the {@link Stable} annotation.
15023
652564fe42d5 Use CompressionNode for accessing compressed Klass pointers.
Roland Schatz <roland.schatz@oracle.com>
parents: 15018
diff changeset
198 *
12559
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
199 * @return true if field has {@link Stable} annotation, false otherwise
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
200 */
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
201 public boolean isStable() {
22581
3884a98ebcde consistently use HotSpotVMConfig.config() for static access to the HotSpotVMConfig instance
Doug Simon <doug.simon@oracle.com>
parents: 22569
diff changeset
202 if ((config().jvmAccFieldStable & modifiers) != 0) {
17334
0563b652c052 Unify parsing of graal and hotspot Stable annotations
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16481
diff changeset
203 return true;
0563b652c052 Unify parsing of graal and hotspot Stable annotations
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16481
diff changeset
204 }
0563b652c052 Unify parsing of graal and hotspot Stable annotations
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16481
diff changeset
205 assert getAnnotation(Stable.class) == null;
22661
db43de18c170 Remove static imports to work around Eclipse bug
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22598
diff changeset
206 if (Options.ImplicitStableValues.getValue() && isImplicitStableField()) {
18507
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
207 return true;
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
208 }
17334
0563b652c052 Unify parsing of graal and hotspot Stable annotations
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 16481
diff changeset
209 return false;
12559
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
210 }
ae412befde21 read HotSpotVMConfig fields from HotSpot's vmStructs via annotations
twisti
parents: 12456
diff changeset
211
9984
f3330a4487eb added ResolvedJava[Field|Method].isSynthetic()
Doug Simon <doug.simon@oracle.com>
parents: 9914
diff changeset
212 @Override
22432
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
213 public Annotation[] getAnnotations() {
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
214 Field javaField = toJava();
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
215 if (javaField != null) {
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
216 return javaField.getAnnotations();
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
217 }
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
218 return new Annotation[0];
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
219 }
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
220
e4f0d819fe22 Add getAnnotations() method to ResolvedJavaType and ResolvedJavaField
Christian Wimmer <christian.wimmer@oracle.com>
parents: 22054
diff changeset
221 @Override
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
222 public <T extends Annotation> T getAnnotation(Class<T> annotationClass) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
223 Field javaField = toJava();
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
224 if (javaField != null) {
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
225 return javaField.getAnnotation(annotationClass);
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
226 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
227 return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
228 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
229
20821
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
230 private Field toJavaCache;
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
231
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
232 private Field toJava() {
20821
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
233 if (toJavaCache != null) {
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
234 return toJavaCache;
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
235 }
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
236
13823
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
237 if (isInternal()) {
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
238 return null;
6dd8b95a7fbb fixed HotSpotResolvedJavaField.getModifiers() to mask out FIELD_INTERNAL_FLAG
Doug Simon <doug.simon@oracle.com>
parents: 13818
diff changeset
239 }
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
240 try {
20821
1bfa14fd1275 Cache the reflection Field in HotSpotResolvedFieldImpl, since it is accessed repeatedly when accessing the annotations of the field
Christian Wimmer <christian.wimmer@oracle.com>
parents: 20103
diff changeset
241 return toJavaCache = holder.mirror().getDeclaredField(name);
19917
6575b4e3f629 Don't force resolution for unloaded field types
Tom Rodriguez <tom.rodriguez@oracle.com>
parents: 19855
diff changeset
242 } catch (NoSuchFieldException | NoClassDefFoundError e) {
3733
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
243 return null;
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
244 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
245 }
18507
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
246
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
247 private boolean isArray() {
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
248 JavaType fieldType = getType();
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
249 return fieldType instanceof ResolvedJavaType && ((ResolvedJavaType) fieldType).isArray();
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
250 }
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
251
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
252 private boolean isImplicitStableField() {
22664
47f047ae2b4b Make default values stable in enum switch maps
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 22661
diff changeset
253 if (isSyntheticEnumSwitchMap()) {
47f047ae2b4b Make default values stable in enum switch maps
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 22661
diff changeset
254 return true;
47f047ae2b4b Make default values stable in enum switch maps
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 22661
diff changeset
255 }
47f047ae2b4b Make default values stable in enum switch maps
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents: 22661
diff changeset
256 if (isWellKnownImplicitStableField()) {
18508
f56a5c4cd859 Treat String.value as implicit stable field
Andreas Woess <andreas.woess@jku.at>
parents: 18507
diff changeset
257 return true;
18507
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
258 }
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
diff changeset
259 return false;
c2b45b536677 Constant fold elements of switch table and enum values() arrays
Andreas Woess <andreas.woess@jku.at>
parents: 18465
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260 }
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261
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262 public boolean isDefaultStable() {
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263 assert this.isStable();
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264 if (isSyntheticEnumSwitchMap()) {
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265 return true;
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266 }
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267 return false;
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268 }
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269
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270 private boolean isSyntheticEnumSwitchMap() {
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271 if (isSynthetic() && isStatic() && isArray()) {
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272 if (isFinal() && name.equals("$VALUES") || name.equals("ENUM$VALUES")) {
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273 // generated int[] field for EnumClass::values()
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274 return true;
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275 } else if (name.startsWith("$SwitchMap$") || name.startsWith("$SWITCH_TABLE$")) {
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276 // javac and ecj generate a static field in an inner class for a switch on an enum
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277 // named $SwitchMap$p$k$g$EnumClass and $SWITCH_TABLE$p$k$g$EnumClass, respectively
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278 return true;
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279 }
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280 }
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281 return false;
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282 }
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283
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284 private boolean isWellKnownImplicitStableField() {
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285 return WellKnownImplicitStableField.test(this);
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286 }
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287
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288 static class WellKnownImplicitStableField {
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289 /**
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290 * @return {@code true} if the field is a well-known stable field.
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291 */
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292 public static boolean test(HotSpotResolvedJavaField field) {
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293 return field.equals(STRING_VALUE_FIELD);
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294 }
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295
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296 private static final ResolvedJavaField STRING_VALUE_FIELD;
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297
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298 static {
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299 try {
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300 MetaAccessProvider metaAccess = runtime().getHostJVMCIBackend().getMetaAccess();
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301 STRING_VALUE_FIELD = metaAccess.lookupJavaField(String.class.getDeclaredField("value"));
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302 } catch (SecurityException | NoSuchFieldException e) {
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303 throw new JVMCIError(e);
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304 }
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305 }
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306 }
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307
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308 public LocationIdentity getLocationIdentity() {
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309 return locationIdentity;
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310 }
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311 }