--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.management.agent/unix/native/libmanagement_agent/FileSystemImpl.c	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2004, 2012, 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 <sys/types.h>
+#include <sys/stat.h>
+
+#include "jni.h"
+#include "jni_util.h"
+#include "jdk_internal_agent_FileSystemImpl.h"
+
+#ifdef _ALLBSD_SOURCE
+#define stat64 stat
+#endif
+
+/*
+ * JNI_OnLoad
+ */
+JNIEXPORT jint JNICALL DEF_JNI_OnLoad(JavaVM *vm, void *reserved)
+{
+    JNIEnv* env;
+
+    if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_2) != JNI_OK) {
+        return JNI_EVERSION; /* JNI version not supported */
+    }
+
+    return JNI_VERSION_9;
+}
+
+/*
+ * Class:     jdk_internal_agent_FileSystemImpl
+ * Method:    isAccessUserOnly0
+ * Signature: (Ljava/lang/String;)Z
+ */
+JNIEXPORT jboolean JNICALL Java_jdk_internal_agent_FileSystemImpl_isAccessUserOnly0
+  (JNIEnv *env, jclass ignored, jstring str)
+{
+    jboolean res = JNI_FALSE;
+    jboolean isCopy;
+    const char *path = JNU_GetStringPlatformChars(env, str, &isCopy);
+    if (path != NULL) {
+        struct stat64 sb;
+        if (stat64(path, &sb) == 0) {
+            res = ((sb.st_mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) == 0) ? JNI_TRUE : JNI_FALSE;
+        } else {
+            JNU_ThrowIOExceptionWithLastError(env, "stat64 failed");
+        }
+        if (isCopy) {
+            JNU_ReleaseStringPlatformChars(env, str, path);
+        }
+    }
+    return res;
+}