--- a/jdk/src/java.base/macosx/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 09:05:50 2015 +0100
+++ b/jdk/src/java.base/macosx/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 19:12:11 2015 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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
@@ -31,6 +31,11 @@
     private ClassLoaderHelper() {}
 
     /**
+     * Indicates, whether PATH env variable is allowed to contain quoted entries.
+     */
+    static final boolean allowsQuotedPathElements = false;
+
+    /**
      * Returns an alternate path name for the given file
      * such that if the original pathname did not exist, then the
      * file may be located at the alternate location.

--- a/jdk/src/java.base/share/classes/java/lang/ClassLoader.java	Mon Jan 19 09:05:50 2015 +0100
+++ b/jdk/src/java.base/share/classes/java/lang/ClassLoader.java	Mon Jan 19 19:12:11 2015 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2014 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 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
@@ -1747,35 +1747,54 @@
     private static String usr_paths[];
     private static String sys_paths[];
 
-    private static String[] initializePath(String propname) {
-        String ldpath = System.getProperty(propname, "");
-        String ps = File.pathSeparator;
-        int ldlen = ldpath.length();
-        int i, j, n;
-        // Count the separators in the path
-        i = ldpath.indexOf(ps);
-        n = 0;
-        while (i >= 0) {
-            n++;
-            i = ldpath.indexOf(ps, i + 1);
+    private static String[] initializePath(String propName) {
+        String ldPath = System.getProperty(propName, "");
+        int ldLen = ldPath.length();
+        char ps = File.pathSeparatorChar;
+        int psCount = 0;
+
+        if (ClassLoaderHelper.allowsQuotedPathElements &&
+                ldPath.indexOf('\"') >= 0) {
+            // First, remove quotes put around quoted parts of paths.
+            // Second, use a quotation mark as a new path separator.
+            // This will preserve any quoted old path separators.
+            char[] buf = new char[ldLen];
+            int bufLen = 0;
+            for (int i = 0; i < ldLen; ++i) {
+                char ch = ldPath.charAt(i);
+                if (ch == '\"') {
+                    while (++i < ldLen &&
+                            (ch = ldPath.charAt(i)) != '\"') {
+                        buf[bufLen++] = ch;
+                    }
+                } else {
+                    if (ch == ps) {
+                        psCount++;
+                        ch = '\"';
+                    }
+                    buf[bufLen++] = ch;
+                }
+            }
+            ldPath = new String(buf, 0, bufLen);
+            ldLen = bufLen;
+            ps = '\"';
+        } else {
+            for (int i = ldPath.indexOf(ps); i >= 0;
+                    i = ldPath.indexOf(ps, i + 1)) {
+                psCount++;
+            }
         }
 
-        // allocate the array of paths - n :'s = n + 1 path elements
-        String[] paths = new String[n + 1];
-
-        // Fill the array with paths from the ldpath
-        n = i = 0;
-        j = ldpath.indexOf(ps);
-        while (j >= 0) {
-            if (j - i > 0) {
-                paths[n++] = ldpath.substring(i, j);
-            } else if (j - i == 0) {
-                paths[n++] = ".";
-            }
-            i = j + 1;
-            j = ldpath.indexOf(ps, i);
+        String[] paths = new String[psCount + 1];
+        int pathStart = 0;
+        for (int j = 0; j < psCount; ++j) {
+            int pathEnd = ldPath.indexOf(ps, pathStart);
+            paths[j] = (pathStart < pathEnd) ?
+                    ldPath.substring(pathStart, pathEnd) : ".";
+            pathStart = pathEnd + 1;
         }
-        paths[n] = ldpath.substring(i, ldlen);
+        paths[psCount] = (pathStart < ldLen) ?
+                ldPath.substring(pathStart, ldLen) : ".";
         return paths;
     }
 

--- a/jdk/src/java.base/unix/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 09:05:50 2015 +0100
+++ b/jdk/src/java.base/unix/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 19:12:11 2015 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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
@@ -31,6 +31,11 @@
     private ClassLoaderHelper() {}
 
     /**
+     * Indicates, whether PATH env variable is allowed to contain quoted entries.
+     */
+    static final boolean allowsQuotedPathElements = false;
+
+    /**
      * Returns an alternate path name for the given file
      * such that if the original pathname did not exist, then the
      * file may be located at the alternate location.

--- a/jdk/src/java.base/windows/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 09:05:50 2015 +0100
+++ b/jdk/src/java.base/windows/classes/java/lang/ClassLoaderHelper.java	Mon Jan 19 19:12:11 2015 +0300
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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
@@ -31,6 +31,11 @@
     private ClassLoaderHelper() {}
 
     /**
+     * Indicates, whether PATH env variable is allowed to contain quoted entries.
+     */
+    static final boolean allowsQuotedPathElements = true;
+
+    /**
      * Returns an alternate path name for the given file
      * such that if the original pathname did not exist, then the
      * file may be located at the alternate location.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/ClassLoader/LibraryPathProperty.java	Mon Jan 19 19:12:11 2015 +0300
@@ -0,0 +1,84 @@
+/*
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 8067951
+ * @summary Unit test for internal ClassLoader#initializePath().
+ *          Quoted entries should get unquoted on Windows.
+ *          Empty entries should be replaced with dot.
+ * @library /lib/testlibrary
+ * @build jdk.testlibrary.Platform
+ * @run main LibraryPathProperty
+ */
+
+import java.lang.reflect.Method;
+import java.io.File;
+import java.util.Arrays;
+import jdk.testlibrary.Platform;
+
+public class LibraryPathProperty {
+
+    static final String propName = "test.property.name";
+    static final String SP = File.pathSeparator;
+    static Method method;
+
+    public static void main(String[] args) throws Throwable {
+        method = ClassLoader.class
+                .getDeclaredMethod("initializePath",
+                                   String.class);
+        method.setAccessible(true);
+
+        test("", ".");
+        test(SP, ".", ".");
+        test("a" + SP, "a", ".");
+        test(SP + "b", ".", "b");
+        test("a" + SP + SP + "b", "a", ".", "b");
+
+        if (Platform.isWindows()) {
+            // on Windows parts of paths may be quoted
+            test("\"\"", ".");
+            test("\"\"" + SP, ".", ".");
+            test(SP + "\"\"", ".", ".");
+            test("a" + SP + "\"b\"" + SP, "a", "b", ".");
+            test(SP + "\"a\"" + SP + SP + "b", ".", "a", ".", "b");
+            test("\"a\"" + SP + "\"b\"", "a", "b");
+            test("\"/a/\"b" + SP + "c", "/a/b", "c");
+            test("\"/a;b\"" + SP + "c", "/a;b", "c");
+            test("\"/a:b\"" + SP + "c", "/a:b", "c");
+            test("\"/a" + SP + "b\"" + SP + "c", "/a" + SP + "b", "c");
+            test("/\"a\"\";\"\"b\"" + SP + "\"c\"", "/a;b", "c");
+            test("/\"a:\"b" + SP + "c", "/a:b", "c");
+        }
+    }
+
+    static void test(String s, String... expected) throws Throwable {
+        System.setProperty(propName, s);
+        String[] res = (String[])method.invoke(null, propName);
+        if (!Arrays.asList(res).equals(Arrays.asList(expected))) {
+            throw new RuntimeException("Parsing [" + s + "] " +
+                    " result " + Arrays.asList(res) +
+                    " doesn't match " + Arrays.asList(expected));
+        }
+    }
+}