--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.management/share/native/libmanagement/MemoryPoolImpl.c	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2003, 2004, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 <jni.h>
+#include "management.h"
+#include "sun_management_MemoryPoolImpl.h"
+
+JNIEXPORT jobject JNICALL
+Java_sun_management_MemoryPoolImpl_getMemoryManagers0
+  (JNIEnv *env, jobject pool)
+{
+    jobject mgrs = jmm_interface->GetMemoryManagers(env, pool);
+    if (mgrs == NULL) {
+        // Throw internal error since this implementation expects the
+        // pool will never become invalid.
+        JNU_ThrowInternalError(env, "Memory Pool not found");
+    }
+    return mgrs;
+}
+
+JNIEXPORT jobject JNICALL
+Java_sun_management_MemoryPoolImpl_getUsage0
+  (JNIEnv *env, jobject pool)
+{
+    jobject usage = jmm_interface->GetMemoryPoolUsage(env, pool);
+    if (usage == NULL) {
+        // Throw internal error since this implementation expects the
+        // pool will never become invalid.
+        JNU_ThrowInternalError(env, "Memory Pool not found");
+    }
+    return usage;
+}
+
+JNIEXPORT jobject JNICALL
+Java_sun_management_MemoryPoolImpl_getPeakUsage0
+  (JNIEnv *env, jobject pool)
+{
+    jobject usage = jmm_interface->GetPeakMemoryPoolUsage(env, pool);
+    if (usage == NULL) {
+        // Throw internal error since this implementation expects the
+        // pool will never become invalid.
+        JNU_ThrowInternalError(env, "Memory Pool not found");
+    }
+    return usage;
+}
+
+JNIEXPORT void JNICALL
+Java_sun_management_MemoryPoolImpl_setUsageThreshold0
+  (JNIEnv *env, jobject pool, jlong current, jlong newThreshold)
+{
+    // Set both high and low threshold to the same threshold
+    if (newThreshold > current) {
+        // high threshold has to be set first so that high >= low
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_USAGE_THRESHOLD_HIGH, newThreshold);
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_USAGE_THRESHOLD_LOW, newThreshold);
+    } else {
+        // low threshold has to be set first so that high >= low
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_USAGE_THRESHOLD_LOW, newThreshold);
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_USAGE_THRESHOLD_HIGH, newThreshold);
+    }
+}
+
+JNIEXPORT void JNICALL
+Java_sun_management_MemoryPoolImpl_setCollectionThreshold0
+  (JNIEnv *env, jobject pool, jlong current, jlong newThreshold)
+{
+    // Set both high and low threshold to the same threshold
+    if (newThreshold > current) {
+        // high threshold has to be set first so that high >= low
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_COLLECTION_USAGE_THRESHOLD_HIGH,
+                                        newThreshold);
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_COLLECTION_USAGE_THRESHOLD_LOW,
+                                        newThreshold);
+    } else {
+        // low threshold has to be set first so that high >= low
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_COLLECTION_USAGE_THRESHOLD_LOW,
+                                        newThreshold);
+        jmm_interface->SetPoolThreshold(env, pool,
+                                        JMM_COLLECTION_USAGE_THRESHOLD_HIGH,
+                                        newThreshold);
+    }
+}
+
+JNIEXPORT void JNICALL
+Java_sun_management_MemoryPoolImpl_resetPeakUsage0
+  (JNIEnv *env, jobject pool)
+{
+    jvalue value;
+    value.l = pool;
+    jmm_interface->ResetStatistic(env, value, JMM_STAT_PEAK_POOL_USAGE);
+}
+
+JNIEXPORT void JNICALL
+Java_sun_management_MemoryPoolImpl_setPoolUsageSensor
+  (JNIEnv *env, jobject pool, jobject sensor)
+{
+    jmm_interface->SetPoolSensor(env, pool,
+                                 JMM_USAGE_THRESHOLD_HIGH, sensor);
+}
+
+JNIEXPORT void JNICALL
+Java_sun_management_MemoryPoolImpl_setPoolCollectionSensor
+  (JNIEnv *env, jobject pool, jobject sensor)
+{
+    jmm_interface->SetPoolSensor(env, pool,
+                                 JMM_COLLECTION_USAGE_THRESHOLD_HIGH, sensor);
+}
+
+JNIEXPORT jobject JNICALL
+Java_sun_management_MemoryPoolImpl_getCollectionUsage0
+  (JNIEnv *env, jobject pool)
+{
+    return jmm_interface->GetPoolCollectionUsage(env, pool);
+}