1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <pthread.h>
18
19 #include <cstdio>
20 #include <iostream>
21 #include <vector>
22
23 #include "android-base/macros.h"
24
25 #include "jni.h"
26 #include "jvmti.h"
27 #include "scoped_local_ref.h"
28 #include "scoped_utf_chars.h"
29
30 // Test infrastructure
31 #include "jni_helper.h"
32 #include "test_env.h"
33
34 namespace art {
35 namespace Test907GetLoadedClasses {
36
GetClassName(JNIEnv * jni_env,jclass cls)37 static jstring GetClassName(JNIEnv* jni_env, jclass cls) {
38 ScopedLocalRef<jclass> class_class(jni_env, jni_env->GetObjectClass(cls));
39 jmethodID mid = jni_env->GetMethodID(class_class.get(), "getName", "()Ljava/lang/String;");
40 return reinterpret_cast<jstring>(jni_env->CallObjectMethod(cls, mid));
41 }
42
Java_art_Test907_getLoadedClasses(JNIEnv * env,jclass klass ATTRIBUTE_UNUSED)43 extern "C" JNIEXPORT jobjectArray JNICALL Java_art_Test907_getLoadedClasses(
44 JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) {
45 jint count = -1;
46 jclass* classes = nullptr;
47 jvmtiError result = jvmti_env->GetLoadedClasses(&count, &classes);
48 if (result != JVMTI_ERROR_NONE) {
49 char* err;
50 jvmti_env->GetErrorName(result, &err);
51 printf("Failure running GetLoadedClasses: %s\n", err);
52 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err));
53 return nullptr;
54 }
55
56 auto callback = [&](jint i) {
57 jstring class_name = GetClassName(env, classes[i]);
58 env->DeleteLocalRef(classes[i]);
59 return class_name;
60 };
61 jobjectArray ret = CreateObjectArray(env, count, "java/lang/String", callback);
62
63 // Need to Deallocate.
64 jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(classes));
65
66 return ret;
67 }
68
69 } // namespace Test907GetLoadedClasses
70 } // namespace art
71