--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/java.desktop/share/classes/sun/java2d/marlin/MarlinUtils.java	Mon Nov 23 14:35:55 2015 -0800
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+package sun.java2d.marlin;
+
+import jdk.internal.misc.JavaLangAccess;
+import jdk.internal.misc.SharedSecrets;
+
+public final class MarlinUtils {
+    // TODO: use sun.util.logging.PlatformLogger once in JDK9
+    private static final java.util.logging.Logger log;
+
+    static {
+        if (MarlinConst.useLogger) {
+            log = java.util.logging.Logger.getLogger("sun.java2d.marlin");
+        } else {
+            log = null;
+        }
+    }
+
+    private MarlinUtils() {
+        // no-op
+    }
+
+    public static void logInfo(final String msg) {
+        if (MarlinConst.useLogger) {
+            log.info(msg);
+        } else if (MarlinConst.enableLogs) {
+            System.out.print("INFO: ");
+            System.out.println(msg);
+        }
+    }
+
+    public static void logException(final String msg, final Throwable th) {
+        if (MarlinConst.useLogger) {
+//            log.warning(msg, th);
+            log.log(java.util.logging.Level.WARNING, msg, th);
+        } else if (MarlinConst.enableLogs) {
+            System.out.print("WARNING: ");
+            System.out.println(msg);
+            th.printStackTrace(System.err);
+        }
+    }
+
+    // Returns the caller's class and method's name; best effort
+    // if cannot infer, return the logger's name.
+    static String getCallerInfo(String className) {
+        String sourceClassName = null;
+        String sourceMethodName = null;
+
+        JavaLangAccess access = SharedSecrets.getJavaLangAccess();
+        Throwable throwable = new Throwable();
+        int depth = access.getStackTraceDepth(throwable);
+
+        boolean lookingForClassName = true;
+        for (int ix = 0; ix < depth; ix++) {
+            // Calling getStackTraceElement directly prevents the VM
+            // from paying the cost of building the entire stack frame.
+            StackTraceElement frame = access.getStackTraceElement(throwable, ix);
+            String cname = frame.getClassName();
+            if (lookingForClassName) {
+                // Skip all frames until we have found the first frame having the class name.
+                if (cname.equals(className)) {
+                    lookingForClassName = false;
+                }
+            } else {
+                if (!cname.equals(className)) {
+                    // We've found the relevant frame.
+                    sourceClassName = cname;
+                    sourceMethodName = frame.getMethodName();
+                    break;
+                }
+            }
+        }
+
+        if (sourceClassName != null) {
+            return sourceClassName + " " + sourceMethodName;
+        } else {
+            return "unknown";
+        }
+    }
+}