1 files changed, 86 insertions, 0 deletions
diff --git a/src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/ContextClassloaderLocal.java b/src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/ContextClassloaderLocal.java
new file mode 100644
index 00000000..153b6118
--- /dev/null
+++ b/src/share/jaxws_classes/com/sun/tools/internal/ws/wsdl/parser/ContextClassloaderLocal.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2014, 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 com.sun.tools.internal.ws.wsdl.parser;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.text.MessageFormat;
+import java.util.ResourceBundle;
+import java.util.WeakHashMap;
+
+/**
+ * Simple utility ensuring that the value is cached only in case it is non-internal implementation
+ */
+abstract class ContextClassloaderLocal<V> {
+
+    private static final String FAILED_TO_CREATE_NEW_INSTANCE = "FAILED_TO_CREATE_NEW_INSTANCE";
+
+    private WeakHashMap<ClassLoader, V> CACHE = new WeakHashMap<ClassLoader, V>();
+
+    public V get() throws Error {
+        ClassLoader tccl = getContextClassLoader();
+        V instance = CACHE.get(tccl);
+        if (instance == null) {
+            instance = createNewInstance();
+            CACHE.put(tccl, instance);
+        }
+        return instance;
+    }
+
+    public void set(V instance) {
+        CACHE.put(getContextClassLoader(), instance);
+    }
+
+    protected abstract V initialValue() throws Exception;
+
+    private V createNewInstance() {
+        try {
+            return initialValue();
+        } catch (Exception e) {
+            throw new Error(format(FAILED_TO_CREATE_NEW_INSTANCE, getClass().getName()), e);
+        }
+    }
+
+    private static String format(String property, Object... args) {
+        String text = ResourceBundle.getBundle(ContextClassloaderLocal.class.getName()).getString(property);
+        return MessageFormat.format(text, args);
+    }
+
+    private static ClassLoader getContextClassLoader() {
+        return (ClassLoader)
+                AccessController.doPrivileged(new PrivilegedAction() {
+                    public Object run() {
+                        ClassLoader cl = null;
+                        try {
+                            cl = Thread.currentThread().getContextClassLoader();
+                        } catch (SecurityException ex) {
+                        }
+                        return cl;
+                    }
+                });
+    }
+}
+