--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/serviceability/jvmti/GetOwnedMonitorStackDepthInfo/libGetOwnedMonitorStackDepthInfoWithEATest.c	Tue Oct 08 15:30:39 2019 +0200
@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2019 SAP SE. 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "jvmti.h"
+#include "jni.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef JNI_ENV_ARG
+
+#ifdef __cplusplus
+#define JNI_ENV_ARG(x, y) y
+#define JNI_ENV_PTR(x) x
+#else
+#define JNI_ENV_ARG(x,y) x, y
+#define JNI_ENV_PTR(x) (*x)
+#endif
+
+#endif
+
+#define FAILED -1
+
+static jvmtiEnv *jvmti;
+
+static jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved);
+
+static void ShowErrorMessage(jvmtiEnv *jvmti, jvmtiError errCode, const char *message) {
+    char *errMsg;
+    jvmtiError result;
+
+    result = (*jvmti)->GetErrorName(jvmti, errCode, &errMsg);
+    if (result == JVMTI_ERROR_NONE) {
+        fprintf(stderr, "%s: %s (%d)\n", message, errMsg, errCode);
+        (*jvmti)->Deallocate(jvmti, (unsigned char *)errMsg);
+    } else {
+        fprintf(stderr, "%s (%d)\n", message, errCode);
+    }
+}
+
+JNIEXPORT jint JNICALL
+Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+
+JNIEXPORT jint JNICALL
+Agent_OnAttach(JavaVM *jvm, char *options, void *reserved) {
+    return Agent_Initialize(jvm, options, reserved);
+}
+
+JNIEXPORT jint JNICALL
+JNI_OnLoad(JavaVM *jvm, void *reserved) {
+    jint res;
+    JNIEnv *env;
+
+    res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &env),
+                                   JNI_VERSION_9);
+    if (res != JNI_OK || env == NULL) {
+        fprintf(stderr, "Error: GetEnv call failed(%d)!\n", res);
+        return JNI_ERR;
+    }
+
+    return JNI_VERSION_9;
+}
+
+static
+jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
+    jint res;
+    jvmtiError err;
+    jvmtiCapabilities caps;
+
+    printf("Agent_OnLoad started\n");
+
+    memset(&caps, 0, sizeof(caps));
+
+    res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti),
+                                   JVMTI_VERSION_9);
+    if (res != JNI_OK || jvmti == NULL) {
+        fprintf(stderr, "Error: wrong result of a valid call to GetEnv!\n");
+        return JNI_ERR;
+    }
+
+    caps.can_get_owned_monitor_stack_depth_info = 1;
+
+    err = (*jvmti)->AddCapabilities(jvmti, &caps);
+    if (err != JVMTI_ERROR_NONE) {
+        ShowErrorMessage(jvmti, err,
+                         "Agent_OnLoad: error in JVMTI AddCapabilities");
+        return JNI_ERR;
+    }
+
+    err = (*jvmti)->GetCapabilities(jvmti, &caps);
+    if (err != JVMTI_ERROR_NONE) {
+        ShowErrorMessage(jvmti, err,
+                         "Agent_OnLoad: error in JVMTI GetCapabilities");
+        return JNI_ERR;
+    }
+
+    if (!caps.can_get_owned_monitor_stack_depth_info) {
+        fprintf(stderr, "Warning: GetOwnedMonitorStackDepthInfo is not implemented\n");
+        return JNI_ERR;
+    }
+
+    printf("Agent_OnLoad finished\n");
+    return JNI_OK;
+}
+
+JNIEXPORT jint JNICALL
+Java_GetOwnedMonitorStackDepthInfoWithEATest_getOwnedMonitorStackDepthInfo(JNIEnv *env, jclass cls, jobject targetThread, jobjectArray ownedMonitors, jintArray depths) {
+    jvmtiError err;
+    jvmtiThreadInfo threadInfo;
+    jint monitorCount;
+    jvmtiMonitorStackDepthInfo* stackDepthInfo;
+    jint* depthsPtr;
+    jint idx = 0;
+
+    err = (*jvmti)->GetThreadInfo(jvmti, targetThread, &threadInfo);
+    if (err != JVMTI_ERROR_NONE) {
+        ShowErrorMessage(jvmti, err,
+                "getOwnedMonitorsFor: error in JVMTI GetThreadInfo");
+        return FAILED;
+    }
+
+    err = (*jvmti)->GetOwnedMonitorStackDepthInfo(jvmti, targetThread, &monitorCount, &stackDepthInfo);
+    if (err != JVMTI_ERROR_NONE) {
+        ShowErrorMessage(jvmti, err,
+                "getOwnedMonitorsFor: error in JVMTI GetOwnedMonitorStackDepthInfo");
+        return FAILED;
+    }
+
+    printf("getOwnedMonitorsFor: %s owns %d monitor(s)\n", threadInfo.name, monitorCount);
+
+    depthsPtr = (*env)->GetIntArrayElements(env, depths, NULL);
+    for (idx = 0; idx < monitorCount; idx++) {
+      (*env)->SetObjectArrayElement(env, ownedMonitors, idx, stackDepthInfo[idx].monitor);
+      depthsPtr[idx] = stackDepthInfo[idx].stack_depth;
+    }
+    (*env)->ReleaseIntArrayElements(env, depths, depthsPtr, 0);
+
+    (*jvmti)->Deallocate(jvmti, (unsigned char *) stackDepthInfo);
+    (*jvmti)->Deallocate(jvmti, (unsigned char *) threadInfo.name);
+    return monitorCount;
+}
+
+#ifdef __cplusplus
+}
+#endif