--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/scenarios/hotswap/HS301/hs301t002/hs301t002.c	Thu May 24 17:12:15 2018 -0700
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+/**
+ * Please see the ./hs301t002.README file for detailed explanation of this testcase.
+ *
+ */
+#include <jni.h>
+#include <jvmti.h>
+#include "agent_common.h"
+#include <string.h>
+#include "jvmti_tools.h"
+#include "jni_tools.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define FILE_NAME "nsk/jvmti/scenarios/hotswap/HS301/hs301t002/MyClass"
+#define DIR_NAME "newclass"
+#define PATH_FORMAT "%s%02d/%s"
+#define SEARCH_NAME "nsk/jvmti/scenarios/hotswap/HS301/hs301t002/MyClass"
+
+static jvmtiEnv * jvmti;
+
+#ifdef STATIC_BUILD
+JNIEXPORT jint JNICALL Agent_OnLoad_hs301t002(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNICALL Agent_OnAttach_hs301t002(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+JNIEXPORT jint JNI_OnLoad_hs301t002(JavaVM *jvm, char *options, void *reserved) {
+    return JNI_VERSION_1_8;
+}
+#endif
+jint Agent_Initialize(JavaVM *vm, char *options, void *reserved) {
+    nsk_printf(" Agent:: VM Started.\n");
+    if ( ! NSK_JVMTI_VERIFY ( NSK_CPP_STUB3(GetEnv, vm,
+                    (void **)&jvmti, JVMTI_VERSION_1_1) ) ) {
+        nsk_printf(" Agent ::Agent failed to get jvmti env.\n");
+        return JNI_ERR;
+    } else {
+        jvmtiCapabilities caps;
+        if (nsk_jvmti_parseOptions(options) == NSK_FALSE ) {
+            nsk_printf(" Agent:: ## error agent Failed to parse options.\n");
+            return JNI_ERR;
+        }
+        memset(&caps, 0, sizeof(caps));
+        caps.can_redefine_classes = 1;
+        if ( ! NSK_JVMTI_VERIFY ( NSK_CPP_STUB2(AddCapabilities, jvmti, &caps) ) ) {
+            nsk_printf(" Agent:: Error occured while adding capabilities.\n");
+            return JNI_ERR;
+        }
+    }
+    return JNI_OK;
+}
+
+/**
+ * fixed JNI  signature, and droped jclass clsa (paramter from here as it was not used).
+ *
+ */
+JNIEXPORT jboolean JNICALL
+Java_nsk_jvmti_scenarios_hotswap_HS301_hs301t002_hs301t002_redefine(JNIEnv * jni, jobject obj) {
+    jclass cls;
+    jboolean ret;
+    char fileName[512];
+    int redefineNumber ;
+
+    redefineNumber=0;
+    ret = JNI_FALSE;
+    if (!NSK_JNI_VERIFY(jni, (cls = NSK_CPP_STUB2(FindClass, jni, SEARCH_NAME)) != NULL)) {
+        nsk_printf("Agent:: (*JNI)->FindClass(jni, %s) returns `null`.\n", SEARCH_NAME);
+        return NSK_FALSE;
+    }
+    nsk_jvmti_getFileName(redefineNumber, FILE_NAME, fileName,
+                        sizeof(fileName)/sizeof(char));
+    if ( nsk_jvmti_redefineClass(jvmti, cls, fileName) == NSK_TRUE) {
+        nsk_printf("Agent:: MyClass :: Successfully redefined.\n");
+        ret = JNI_TRUE;
+    } else {
+        nsk_printf("Agent:: MyClass :: Failed to redefine.\n");
+    }
+    return ret;
+}
+
+#ifdef __cplusplus
+}
+#endif