1 /* |
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2 * Copyright (c) 2013, 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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 #include <stdlib.h> |
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27 #include <jni.h> |
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28 #include "management.h" |
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29 #include "sun_management_DiagnosticCommandImpl.h" |
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30 |
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31 JNIEXPORT void JNICALL Java_sun_management_DiagnosticCommandImpl_setNotificationEnabled |
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32 (JNIEnv *env, jobject dummy, jboolean enabled) { |
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33 if (jmm_version <= JMM_VERSION_1_2_2) { |
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34 JNU_ThrowByName(env, "java/lang/UnsupportedOperationException", |
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35 "JMX interface to diagnostic framework notifications is not supported by this VM"); |
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36 return; |
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37 } |
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38 jmm_interface->SetDiagnosticFrameworkNotificationEnabled(env, enabled); |
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39 } |
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40 |
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41 JNIEXPORT jobjectArray JNICALL |
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42 Java_sun_management_DiagnosticCommandImpl_getDiagnosticCommands |
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43 (JNIEnv *env, jobject dummy) |
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44 { |
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45 return jmm_interface->GetDiagnosticCommands(env); |
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46 } |
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47 |
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48 jobject getDiagnosticCommandArgumentInfoArray(JNIEnv *env, jstring command, |
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49 int num_arg) { |
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50 int i; |
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51 jobject obj; |
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52 jobjectArray result; |
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53 dcmdArgInfo* dcmd_arg_info_array; |
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54 jclass dcmdArgInfoCls; |
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55 jclass arraysCls; |
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56 jmethodID mid; |
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57 jobject resultList; |
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58 |
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59 dcmd_arg_info_array = (dcmdArgInfo*) malloc(num_arg * sizeof(dcmdArgInfo)); |
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60 /* According to ISO C it is perfectly legal for malloc to return zero if called with a zero argument */ |
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61 if (dcmd_arg_info_array == NULL && num_arg != 0) { |
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62 return NULL; |
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63 } |
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64 jmm_interface->GetDiagnosticCommandArgumentsInfo(env, command, |
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65 dcmd_arg_info_array); |
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66 dcmdArgInfoCls = (*env)->FindClass(env, |
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67 "sun/management/DiagnosticCommandArgumentInfo"); |
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68 if ((*env)->ExceptionCheck(env)) { |
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69 free(dcmd_arg_info_array); |
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70 return NULL; |
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71 } |
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72 |
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73 result = (*env)->NewObjectArray(env, num_arg, dcmdArgInfoCls, NULL); |
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74 if (result == NULL) { |
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75 free(dcmd_arg_info_array); |
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76 return NULL; |
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77 } |
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78 for (i=0; i<num_arg; i++) { |
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79 obj = JNU_NewObjectByName(env, |
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80 "sun/management/DiagnosticCommandArgumentInfo", |
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81 "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZZZI)V", |
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82 (*env)->NewStringUTF(env,dcmd_arg_info_array[i].name), |
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83 (*env)->NewStringUTF(env,dcmd_arg_info_array[i].description), |
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84 (*env)->NewStringUTF(env,dcmd_arg_info_array[i].type), |
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85 dcmd_arg_info_array[i].default_string == NULL ? NULL: |
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86 (*env)->NewStringUTF(env, dcmd_arg_info_array[i].default_string), |
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87 dcmd_arg_info_array[i].mandatory, |
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88 dcmd_arg_info_array[i].option, |
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89 dcmd_arg_info_array[i].multiple, |
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90 dcmd_arg_info_array[i].position); |
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91 if (obj == NULL) { |
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92 free(dcmd_arg_info_array); |
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93 return NULL; |
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94 } |
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95 (*env)->SetObjectArrayElement(env, result, i, obj); |
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96 } |
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97 free(dcmd_arg_info_array); |
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98 arraysCls = (*env)->FindClass(env, "java/util/Arrays"); |
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99 if ((*env)->ExceptionCheck(env)) { |
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100 return NULL; |
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101 } |
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102 mid = (*env)->GetStaticMethodID(env, arraysCls, |
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103 "asList", "([Ljava/lang/Object;)Ljava/util/List;"); |
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104 resultList = (*env)->CallStaticObjectMethod(env, arraysCls, mid, result); |
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105 if ((*env)->ExceptionCheck(env)) { |
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106 // Make sure we return NULL in case of OOM inside Java |
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107 return NULL; |
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108 } |
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109 return resultList; |
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110 } |
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111 |
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112 /* Throws IllegalArgumentException if at least one of the diagnostic command |
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113 * passed in argument is not supported by the JVM |
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114 */ |
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115 JNIEXPORT jobjectArray JNICALL |
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116 Java_sun_management_DiagnosticCommandImpl_getDiagnosticCommandInfo |
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117 (JNIEnv *env, jobject dummy, jobjectArray commands) |
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118 { |
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119 int i; |
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120 jclass dcmdInfoCls; |
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121 jobject result; |
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122 jobjectArray args; |
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123 jobject obj; |
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124 jmmOptionalSupport mos; |
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125 jint ret = jmm_interface->GetOptionalSupport(env, &mos); |
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126 jsize num_commands; |
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127 dcmdInfo* dcmd_info_array; |
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128 |
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129 if (commands == NULL) { |
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130 JNU_ThrowNullPointerException(env, "Invalid String Array"); |
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131 return NULL; |
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132 } |
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133 num_commands = (*env)->GetArrayLength(env, commands); |
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134 dcmdInfoCls = (*env)->FindClass(env, |
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135 "sun/management/DiagnosticCommandInfo"); |
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136 if ((*env)->ExceptionCheck(env)) { |
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137 return NULL; |
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138 } |
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139 |
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140 result = (*env)->NewObjectArray(env, num_commands, dcmdInfoCls, NULL); |
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141 if (result == NULL) { |
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142 JNU_ThrowOutOfMemoryError(env, 0); |
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143 return NULL; |
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144 } |
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145 if (num_commands == 0) { |
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146 /* Handle the 'zero commands' case specially to avoid calling 'malloc()' */ |
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147 /* with a zero argument because that may legally return a NULL pointer. */ |
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148 return result; |
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149 } |
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150 dcmd_info_array = (dcmdInfo*) malloc(num_commands * sizeof(dcmdInfo)); |
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151 if (dcmd_info_array == NULL) { |
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152 JNU_ThrowOutOfMemoryError(env, NULL); |
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153 return NULL; |
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154 } |
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155 jmm_interface->GetDiagnosticCommandInfo(env, commands, dcmd_info_array); |
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156 for (i=0; i<num_commands; i++) { |
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157 args = getDiagnosticCommandArgumentInfoArray(env, |
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158 (*env)->GetObjectArrayElement(env,commands,i), |
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159 dcmd_info_array[i].num_arguments); |
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160 if (args == NULL) { |
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161 free(dcmd_info_array); |
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162 JNU_ThrowOutOfMemoryError(env, 0); |
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163 return NULL; |
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164 } |
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165 obj = JNU_NewObjectByName(env, |
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166 "sun/management/DiagnosticCommandInfo", |
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167 "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;ZLjava/util/List;)V", |
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168 (*env)->NewStringUTF(env,dcmd_info_array[i].name), |
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169 (*env)->NewStringUTF(env,dcmd_info_array[i].description), |
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170 (*env)->NewStringUTF(env,dcmd_info_array[i].impact), |
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171 dcmd_info_array[i].permission_class==NULL?NULL:(*env)->NewStringUTF(env,dcmd_info_array[i].permission_class), |
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172 dcmd_info_array[i].permission_name==NULL?NULL:(*env)->NewStringUTF(env,dcmd_info_array[i].permission_name), |
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173 dcmd_info_array[i].permission_action==NULL?NULL:(*env)->NewStringUTF(env,dcmd_info_array[i].permission_action), |
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174 dcmd_info_array[i].enabled, |
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175 args); |
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176 if (obj == NULL) { |
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177 free(dcmd_info_array); |
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178 JNU_ThrowOutOfMemoryError(env, 0); |
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179 return NULL; |
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180 } |
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181 (*env)->SetObjectArrayElement(env, result, i, obj); |
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182 } |
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183 free(dcmd_info_array); |
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184 return result; |
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185 } |
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186 |
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187 /* Throws IllegalArgumentException if the diagnostic command |
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188 * passed in argument is not supported by the JVM |
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189 */ |
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190 JNIEXPORT jstring JNICALL |
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191 Java_sun_management_DiagnosticCommandImpl_executeDiagnosticCommand |
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192 (JNIEnv *env, jobject dummy, jstring command) { |
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193 return jmm_interface->ExecuteDiagnosticCommand(env, command); |
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194 } |
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