/*
* Copyright ( C ) 2018 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#include <cstdio>
#include <memory>
#include <string>
#include <vector>
#include "android-base/logging.h"
#include "android-base/stringprintf.h"
#include "jni.h"
#include "jvmti.h"
#include "scoped_local_ref.h"
#include "scoped_utf_chars.h"
// Test infrastructure
#include "jni_helper.h"
#include "jvmti_helper.h"
#include "test_env.h"
#include "ti_macros.h"
namespace art {
namespace Test1957ErrorExt {
using GetLastError = jvmtiError(*)(jvmtiEnv* env, char ** msg);
using ClearLastError = jvmtiError(*)(jvmtiEnv* env);
template <typename T>
static void Dealloc(T* t) {
jvmti_env->Deallocate(reinterpret_cast <unsigned char *>(t));
}
template <typename T, typename ...Rest>
static void Dealloc(T* t, Rest... rs) {
Dealloc(t);
Dealloc(rs...);
}
static void DeallocParams(jvmtiParamInfo* params, jint n_params) {
for (jint i = 0 ; i < n_params; i++) {
Dealloc(params[i].name);
}
}
static jvmtiExtensionFunction FindExtensionMethod(JNIEnv* env, const std::string& name) {
jint n_ext;
jvmtiExtensionFunctionInfo* infos;
if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) {
return nullptr;
}
jvmtiExtensionFunction res = nullptr;
for (jint i = 0 ; i < n_ext; i++) {
jvmtiExtensionFunctionInfo* cur_info = &infos[i];
if (strcmp(name.c_str(), cur_info->id) == 0 ) {
res = cur_info->func;
}
// Cleanup the cur_info
DeallocParams(cur_info->params, cur_info->param_count);
Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors);
}
// Cleanup the array.
Dealloc(infos);
if (res == nullptr) {
ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException" ));
env->ThrowNew(rt_exception.get(), (name + " extensions not found" ).c_str());
return nullptr;
}
return res;
}
extern "C" JNIEXPORT
jstring JNICALL Java_art_Test1957_getLastError(JNIEnv* env, [[maybe_unused]] jclass klass) {
GetLastError get_last_error = reinterpret_cast <GetLastError>(
FindExtensionMethod(env, "com.android.art.misc.get_last_error_message" ));
if (get_last_error == nullptr) {
return nullptr;
}
char * msg;
if (JvmtiErrorToException(env, jvmti_env, get_last_error(jvmti_env, &msg))) {
return nullptr;
}
return env->NewStringUTF(msg);
}
extern "C" JNIEXPORT
void JNICALL Java_art_Test1957_clearLastError(JNIEnv* env, [[maybe_unused]] jclass klass) {
ClearLastError clear_last_error = reinterpret_cast <ClearLastError>(
FindExtensionMethod(env, "com.android.art.misc.clear_last_error_message" ));
if (clear_last_error == nullptr) {
return ;
}
JvmtiErrorToException(env, jvmti_env, clear_last_error(jvmti_env));
}
} // namespace Test1957ErrorExt
} // namespace art
Messung V0.5 in Prozent C=93 H=96 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-29)
¤
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