32 
  33 #define DIR_NAME "newclass"
  34 #define PATH_FORMAT "%s%02d/%s"
  35 #define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread"
  36 #define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread"
  37 
  38 static jvmtiEnv * jvmti;
  39 
  40 #ifdef STATIC_BUILD
  41 JNIEXPORT jint JNICALL Agent_OnLoad_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  42     return Agent_Initialize(jvm, options, reserved);
  43 }
  44 JNIEXPORT jint JNICALL Agent_OnAttach_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  45     return Agent_Initialize(jvm, options, reserved);
  46 }
  47 JNIEXPORT jint JNI_OnLoad_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  48     return JNI_VERSION_1_8;
  49 }
  50 #endif
  51 jint  Agent_Initialize(JavaVM *vm, char *options, void *reserved){
  52     if ( ! NSK_VERIFY ( JNI_OK == NSK_CPP_STUB3(GetEnv, vm,
  53                     (void **)&jvmti, JVMTI_VERSION_1_1) ) ) {
  54         nsk_printf("#error Agent :: Could not load JVMTI interface.\n");
  55         return JNI_ERR;
  56     } else {
  57         jvmtiCapabilities caps;
  58         if (nsk_jvmti_parseOptions(options) == NSK_FALSE ) {
  59             nsk_printf("# error agent Failed to parse options \n");
  60             return JNI_ERR;
  61         }
  62         memset(&caps, 0, sizeof(caps));
  63         caps.can_redefine_classes = 1;
  64         if (! NSK_JVMTI_VERIFY ( NSK_CPP_STUB2(AddCapabilities, jvmti,
  65                 &caps) )) {
  66             nsk_printf("#error Agent :: occured while adding capabilities.\n");
  67             return JNI_ERR;
  68         }
  69     }
  70     return JNI_OK;
  71 }
  72 
  73 JNIEXPORT void JNICALL
  74 Java_nsk_jvmti_scenarios_hotswap_HS104_hs104t002_hs104t002_redefineClasses(
  75     JNIEnv *jni, jclass classObject) {
  76     jclass cla;
  77     char fileName[512];
  78 
  79     if ( ! NSK_JNI_VERIFY(jni, ( cla = NSK_CPP_STUB2(FindClass,
  80                                 jni, SEARCH_NAME) ) != NULL ) ) {
  81         nsk_printf(" Agent :: Failed to get class.\n");
  82         nsk_jvmti_agentFailed();
  83         return;
  84     }
  85     nsk_jvmti_getFileName(0, FILE_NAME, fileName,
  86             sizeof(fileName)/sizeof(char));
  87     if ( nsk_jvmti_redefineClass( jvmti, cla, fileName) == NSK_TRUE ) {
  88         nsk_printf(" Agent :: Redefine successfull.\n");
  89     } else {
  90         nsk_printf("# error Agent :: Redefine failed.\n");
  91         nsk_jvmti_agentFailed();
  92     }
  93 }
  94 
  95 }

  32 
  33 #define DIR_NAME "newclass"
  34 #define PATH_FORMAT "%s%02d/%s"
  35 #define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread"
  36 #define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS104/hs104t002/MyThread"
  37 
  38 static jvmtiEnv * jvmti;
  39 
  40 #ifdef STATIC_BUILD
  41 JNIEXPORT jint JNICALL Agent_OnLoad_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  42     return Agent_Initialize(jvm, options, reserved);
  43 }
  44 JNIEXPORT jint JNICALL Agent_OnAttach_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  45     return Agent_Initialize(jvm, options, reserved);
  46 }
  47 JNIEXPORT jint JNI_OnLoad_hs104t002(JavaVM *jvm, char *options, void *reserved) {
  48     return JNI_VERSION_1_8;
  49 }
  50 #endif
  51 jint  Agent_Initialize(JavaVM *vm, char *options, void *reserved){
  52     if ( ! NSK_VERIFY ( JNI_OK == vm->GetEnv((void **)&jvmti, JVMTI_VERSION_1_1) ) ) {

  53         nsk_printf("#error Agent :: Could not load JVMTI interface.\n");
  54         return JNI_ERR;
  55     } else {
  56         jvmtiCapabilities caps;
  57         if (nsk_jvmti_parseOptions(options) == NSK_FALSE ) {
  58             nsk_printf("# error agent Failed to parse options \n");
  59             return JNI_ERR;
  60         }
  61         memset(&caps, 0, sizeof(caps));
  62         caps.can_redefine_classes = 1;
  63         if (! NSK_JVMTI_VERIFY (jvmti->AddCapabilities(&caps) )) {

  64             nsk_printf("#error Agent :: occured while adding capabilities.\n");
  65             return JNI_ERR;
  66         }
  67     }
  68     return JNI_OK;
  69 }
  70 
  71 JNIEXPORT void JNICALL
  72 Java_nsk_jvmti_scenarios_hotswap_HS104_hs104t002_hs104t002_redefineClasses(
  73     JNIEnv *jni, jclass classObject) {
  74     jclass cla;
  75     char fileName[512];
  76 
  77     if ( ! NSK_JNI_VERIFY(jni, ( cla = jni->FindClass(SEARCH_NAME) ) != NULL ) ) {

  78         nsk_printf(" Agent :: Failed to get class.\n");
  79         nsk_jvmti_agentFailed();
  80         return;
  81     }
  82     nsk_jvmti_getFileName(0, FILE_NAME, fileName,
  83             sizeof(fileName)/sizeof(char));
  84     if ( nsk_jvmti_redefineClass( jvmti, cla, fileName) == NSK_TRUE ) {
  85         nsk_printf(" Agent :: Redefine successfull.\n");
  86     } else {
  87         nsk_printf("# error Agent :: Redefine failed.\n");
  88         nsk_jvmti_agentFailed();
  89     }
  90 }
  91 
  92 }