changeset 6637:5872319f9adf

8008744: Rework part of fix for JDK-6741606 Reviewed-by: xuelei, ahgross
author mullan
date Wed, 01 May 2013 17:19:04 -0400
parents c282e264ab00
children 9fb20c70c89d
files src/share/classes/com/sun/org/apache/xml/internal/security/algorithms/ClassLoaderUtils.java src/share/classes/com/sun/org/apache/xml/internal/security/algorithms/SignatureAlgorithm.java src/share/classes/com/sun/org/apache/xml/internal/security/transforms/ClassLoaderUtils.java src/share/classes/com/sun/org/apache/xml/internal/security/transforms/Transform.java src/share/classes/com/sun/org/apache/xml/internal/security/utils/ClassLoaderUtils.java
diffstat 5 files changed, 560 insertions(+), 279 deletions(-) [+]
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/com/sun/org/apache/xml/internal/security/algorithms/ClassLoaderUtils.java	Wed May 01 17:19:04 2013 -0400
@@ -0,0 +1,280 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.sun.org.apache.xml.internal.security.algorithms;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+
+/**
+ * This class is extremely useful for loading resources and classes in a fault
+ * tolerant manner that works across different applications servers. Do not
+ * touch this unless you're a grizzled classloading guru veteran who is going to
+ * verify any change on 6 different application servers.
+ */
+// NOTE! This is a duplicate of utils.ClassLoaderUtils with public
+// modifiers changed to package-private. Make sure to integrate any future
+// changes to utils.ClassLoaderUtils to this file.
+final class ClassLoaderUtils {
+
+    /** {@link org.apache.commons.logging} logging facility */
+    private static final java.util.logging.Logger log =
+        java.util.logging.Logger.getLogger(ClassLoaderUtils.class.getName());
+
+    private ClassLoaderUtils() {
+    }
+
+    /**
+     * Load a given resource. <p/> This method will try to load the resource
+     * using the following methods (in order):
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static URL getResource(String resourceName, Class<?> callingClass) {
+        URL url = Thread.currentThread().getContextClassLoader().getResource(resourceName);
+        if (url == null && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            url =
+                Thread.currentThread().getContextClassLoader().getResource(
+                    resourceName.substring(1)
+                );
+        }
+
+        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
+        if (cluClassloader == null) {
+            cluClassloader = ClassLoader.getSystemClassLoader();
+        }
+        if (url == null) {
+            url = cluClassloader.getResource(resourceName);
+        }
+        if (url == null && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            url = cluClassloader.getResource(resourceName.substring(1));
+        }
+
+        if (url == null) {
+            ClassLoader cl = callingClass.getClassLoader();
+
+            if (cl != null) {
+                url = cl.getResource(resourceName);
+            }
+        }
+
+        if (url == null) {
+            url = callingClass.getResource(resourceName);
+        }
+
+        if ((url == null) && (resourceName != null) && (resourceName.charAt(0) != '/')) {
+            return getResource('/' + resourceName, callingClass);
+        }
+
+        return url;
+    }
+
+    /**
+     * Load a given resources. <p/> This method will try to load the resources
+     * using the following methods (in order):
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static List<URL> getResources(String resourceName, Class<?> callingClass) {
+        List<URL> ret = new ArrayList<URL>();
+        Enumeration<URL> urls = new Enumeration<URL>() {
+            public boolean hasMoreElements() {
+                return false;
+            }
+            public URL nextElement() {
+                return null;
+            }
+
+        };
+        try {
+            urls = Thread.currentThread().getContextClassLoader().getResources(resourceName);
+        } catch (IOException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            //ignore
+        }
+        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            try {
+                urls =
+                    Thread.currentThread().getContextClassLoader().getResources(
+                        resourceName.substring(1)
+                    );
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+
+        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
+        if (cluClassloader == null) {
+            cluClassloader = ClassLoader.getSystemClassLoader();
+        }
+        if (!urls.hasMoreElements()) {
+            try {
+                urls = cluClassloader.getResources(resourceName);
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            try {
+                urls = cluClassloader.getResources(resourceName.substring(1));
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+
+        if (!urls.hasMoreElements()) {
+            ClassLoader cl = callingClass.getClassLoader();
+
+            if (cl != null) {
+                try {
+                    urls = cl.getResources(resourceName);
+                } catch (IOException e) {
+                    if (log.isLoggable(java.util.logging.Level.FINE)) {
+                        log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                    }
+                    // ignore
+                }
+            }
+        }
+
+        if (!urls.hasMoreElements()) {
+            URL url = callingClass.getResource(resourceName);
+            if (url != null) {
+                ret.add(url);
+            }
+        }
+        while (urls.hasMoreElements()) {
+            ret.add(urls.nextElement());
+        }
+
+
+        if (ret.isEmpty() && (resourceName != null) && (resourceName.charAt(0) != '/')) {
+            return getResources('/' + resourceName, callingClass);
+        }
+        return ret;
+    }
+
+
+    /**
+     * This is a convenience method to load a resource as a stream. <p/> The
+     * algorithm used to find the resource is given in getResource()
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static InputStream getResourceAsStream(String resourceName, Class<?> callingClass) {
+        URL url = getResource(resourceName, callingClass);
+
+        try {
+            return (url != null) ? url.openStream() : null;
+        } catch (IOException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            return null;
+        }
+    }
+
+    /**
+     * Load a class with a given name. <p/> It will try to load the class in the
+     * following order:
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>Using the basic Class.forName()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>From the callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param className The name of the class to load
+     * @param callingClass The Class object of the calling object
+     * @throws ClassNotFoundException If the class cannot be found anywhere.
+     */
+    static Class<?> loadClass(String className, Class<?> callingClass)
+        throws ClassNotFoundException {
+        try {
+            ClassLoader cl = Thread.currentThread().getContextClassLoader();
+
+            if (cl != null) {
+                return cl.loadClass(className);
+            }
+        } catch (ClassNotFoundException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            //ignore
+        }
+        return loadClass2(className, callingClass);
+    }
+
+    private static Class<?> loadClass2(String className, Class<?> callingClass)
+        throws ClassNotFoundException {
+        try {
+            return Class.forName(className);
+        } catch (ClassNotFoundException ex) {
+            try {
+                if (ClassLoaderUtils.class.getClassLoader() != null) {
+                    return ClassLoaderUtils.class.getClassLoader().loadClass(className);
+                }
+            } catch (ClassNotFoundException exc) {
+                if (callingClass != null && callingClass.getClassLoader() != null) {
+                    return callingClass.getClassLoader().loadClass(className);
+                }
+            }
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, ex.getMessage(), ex);
+            }
+            throw ex;
+        }
+    }
+}
--- a/src/share/classes/com/sun/org/apache/xml/internal/security/algorithms/SignatureAlgorithm.java	Mon Apr 29 16:46:18 2013 +0400
+++ b/src/share/classes/com/sun/org/apache/xml/internal/security/algorithms/SignatureAlgorithm.java	Wed May 01 17:19:04 2013 -0400
@@ -36,7 +36,6 @@
 import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;
 import com.sun.org.apache.xml.internal.security.signature.XMLSignature;
 import com.sun.org.apache.xml.internal.security.signature.XMLSignatureException;
-import com.sun.org.apache.xml.internal.security.utils.ClassLoaderUtils;
 import com.sun.org.apache.xml.internal.security.utils.Constants;
 import org.w3c.dom.Attr;
 import org.w3c.dom.Document;
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/classes/com/sun/org/apache/xml/internal/security/transforms/ClassLoaderUtils.java	Wed May 01 17:19:04 2013 -0400
@@ -0,0 +1,280 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package com.sun.org.apache.xml.internal.security.transforms;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.List;
+
+/**
+ * This class is extremely useful for loading resources and classes in a fault
+ * tolerant manner that works across different applications servers. Do not
+ * touch this unless you're a grizzled classloading guru veteran who is going to
+ * verify any change on 6 different application servers.
+ */
+// NOTE! This is a duplicate of utils.ClassLoaderUtils with public
+// modifiers changed to package-private. Make sure to integrate any future
+// changes to utils.ClassLoaderUtils to this file.
+final class ClassLoaderUtils {
+
+    /** {@link org.apache.commons.logging} logging facility */
+    private static final java.util.logging.Logger log =
+        java.util.logging.Logger.getLogger(ClassLoaderUtils.class.getName());
+
+    private ClassLoaderUtils() {
+    }
+
+    /**
+     * Load a given resource. <p/> This method will try to load the resource
+     * using the following methods (in order):
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static URL getResource(String resourceName, Class<?> callingClass) {
+        URL url = Thread.currentThread().getContextClassLoader().getResource(resourceName);
+        if (url == null && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            url =
+                Thread.currentThread().getContextClassLoader().getResource(
+                    resourceName.substring(1)
+                );
+        }
+
+        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
+        if (cluClassloader == null) {
+            cluClassloader = ClassLoader.getSystemClassLoader();
+        }
+        if (url == null) {
+            url = cluClassloader.getResource(resourceName);
+        }
+        if (url == null && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            url = cluClassloader.getResource(resourceName.substring(1));
+        }
+
+        if (url == null) {
+            ClassLoader cl = callingClass.getClassLoader();
+
+            if (cl != null) {
+                url = cl.getResource(resourceName);
+            }
+        }
+
+        if (url == null) {
+            url = callingClass.getResource(resourceName);
+        }
+
+        if ((url == null) && (resourceName != null) && (resourceName.charAt(0) != '/')) {
+            return getResource('/' + resourceName, callingClass);
+        }
+
+        return url;
+    }
+
+    /**
+     * Load a given resources. <p/> This method will try to load the resources
+     * using the following methods (in order):
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static List<URL> getResources(String resourceName, Class<?> callingClass) {
+        List<URL> ret = new ArrayList<URL>();
+        Enumeration<URL> urls = new Enumeration<URL>() {
+            public boolean hasMoreElements() {
+                return false;
+            }
+            public URL nextElement() {
+                return null;
+            }
+
+        };
+        try {
+            urls = Thread.currentThread().getContextClassLoader().getResources(resourceName);
+        } catch (IOException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            //ignore
+        }
+        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            try {
+                urls =
+                    Thread.currentThread().getContextClassLoader().getResources(
+                        resourceName.substring(1)
+                    );
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+
+        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
+        if (cluClassloader == null) {
+            cluClassloader = ClassLoader.getSystemClassLoader();
+        }
+        if (!urls.hasMoreElements()) {
+            try {
+                urls = cluClassloader.getResources(resourceName);
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
+            //certain classloaders need it without the leading /
+            try {
+                urls = cluClassloader.getResources(resourceName.substring(1));
+            } catch (IOException e) {
+                if (log.isLoggable(java.util.logging.Level.FINE)) {
+                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                }
+                // ignore
+            }
+        }
+
+        if (!urls.hasMoreElements()) {
+            ClassLoader cl = callingClass.getClassLoader();
+
+            if (cl != null) {
+                try {
+                    urls = cl.getResources(resourceName);
+                } catch (IOException e) {
+                    if (log.isLoggable(java.util.logging.Level.FINE)) {
+                        log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+                    }
+                    // ignore
+                }
+            }
+        }
+
+        if (!urls.hasMoreElements()) {
+            URL url = callingClass.getResource(resourceName);
+            if (url != null) {
+                ret.add(url);
+            }
+        }
+        while (urls.hasMoreElements()) {
+            ret.add(urls.nextElement());
+        }
+
+
+        if (ret.isEmpty() && (resourceName != null) && (resourceName.charAt(0) != '/')) {
+            return getResources('/' + resourceName, callingClass);
+        }
+        return ret;
+    }
+
+
+    /**
+     * This is a convenience method to load a resource as a stream. <p/> The
+     * algorithm used to find the resource is given in getResource()
+     *
+     * @param resourceName The name of the resource to load
+     * @param callingClass The Class object of the calling object
+     */
+    static InputStream getResourceAsStream(String resourceName, Class<?> callingClass) {
+        URL url = getResource(resourceName, callingClass);
+
+        try {
+            return (url != null) ? url.openStream() : null;
+        } catch (IOException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            return null;
+        }
+    }
+
+    /**
+     * Load a class with a given name. <p/> It will try to load the class in the
+     * following order:
+     * <ul>
+     * <li>From Thread.currentThread().getContextClassLoader()
+     * <li>Using the basic Class.forName()
+     * <li>From ClassLoaderUtil.class.getClassLoader()
+     * <li>From the callingClass.getClassLoader()
+     * </ul>
+     *
+     * @param className The name of the class to load
+     * @param callingClass The Class object of the calling object
+     * @throws ClassNotFoundException If the class cannot be found anywhere.
+     */
+    static Class<?> loadClass(String className, Class<?> callingClass)
+        throws ClassNotFoundException {
+        try {
+            ClassLoader cl = Thread.currentThread().getContextClassLoader();
+
+            if (cl != null) {
+                return cl.loadClass(className);
+            }
+        } catch (ClassNotFoundException e) {
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
+            }
+            //ignore
+        }
+        return loadClass2(className, callingClass);
+    }
+
+    private static Class<?> loadClass2(String className, Class<?> callingClass)
+        throws ClassNotFoundException {
+        try {
+            return Class.forName(className);
+        } catch (ClassNotFoundException ex) {
+            try {
+                if (ClassLoaderUtils.class.getClassLoader() != null) {
+                    return ClassLoaderUtils.class.getClassLoader().loadClass(className);
+                }
+            } catch (ClassNotFoundException exc) {
+                if (callingClass != null && callingClass.getClassLoader() != null) {
+                    return callingClass.getClassLoader().loadClass(className);
+                }
+            }
+            if (log.isLoggable(java.util.logging.Level.FINE)) {
+                log.log(java.util.logging.Level.FINE, ex.getMessage(), ex);
+            }
+            throw ex;
+        }
+    }
+}
--- a/src/share/classes/com/sun/org/apache/xml/internal/security/transforms/Transform.java	Mon Apr 29 16:46:18 2013 +0400
+++ b/src/share/classes/com/sun/org/apache/xml/internal/security/transforms/Transform.java	Wed May 01 17:19:04 2013 -0400
@@ -44,7 +44,6 @@
 import com.sun.org.apache.xml.internal.security.transforms.implementations.TransformXPath;
 import com.sun.org.apache.xml.internal.security.transforms.implementations.TransformXPath2Filter;
 import com.sun.org.apache.xml.internal.security.transforms.implementations.TransformXSLT;
-import com.sun.org.apache.xml.internal.security.utils.ClassLoaderUtils;
 import com.sun.org.apache.xml.internal.security.utils.Constants;
 import com.sun.org.apache.xml.internal.security.utils.HelperNodeList;
 import com.sun.org.apache.xml.internal.security.utils.SignatureElementProxy;
--- a/src/share/classes/com/sun/org/apache/xml/internal/security/utils/ClassLoaderUtils.java	Mon Apr 29 16:46:18 2013 +0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,277 +0,0 @@
-/*
- * reserved comment block
- * DO NOT REMOVE OR ALTER!
- */
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-package com.sun.org.apache.xml.internal.security.utils;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URL;
-import java.util.ArrayList;
-import java.util.Enumeration;
-import java.util.List;
-
-/**
- * This class is extremely useful for loading resources and classes in a fault
- * tolerant manner that works across different applications servers. Do not
- * touch this unless you're a grizzled classloading guru veteran who is going to
- * verify any change on 6 different application servers.
- */
-public final class ClassLoaderUtils {
-
-    /** {@link org.apache.commons.logging} logging facility */
-    private static final java.util.logging.Logger log =
-        java.util.logging.Logger.getLogger(ClassLoaderUtils.class.getName());
-
-    private ClassLoaderUtils() {
-    }
-
-    /**
-     * Load a given resource. <p/> This method will try to load the resource
-     * using the following methods (in order):
-     * <ul>
-     * <li>From Thread.currentThread().getContextClassLoader()
-     * <li>From ClassLoaderUtil.class.getClassLoader()
-     * <li>callingClass.getClassLoader()
-     * </ul>
-     *
-     * @param resourceName The name of the resource to load
-     * @param callingClass The Class object of the calling object
-     */
-    public static URL getResource(String resourceName, Class<?> callingClass) {
-        URL url = Thread.currentThread().getContextClassLoader().getResource(resourceName);
-        if (url == null && resourceName.startsWith("/")) {
-            //certain classloaders need it without the leading /
-            url =
-                Thread.currentThread().getContextClassLoader().getResource(
-                    resourceName.substring(1)
-                );
-        }
-
-        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
-        if (cluClassloader == null) {
-            cluClassloader = ClassLoader.getSystemClassLoader();
-        }
-        if (url == null) {
-            url = cluClassloader.getResource(resourceName);
-        }
-        if (url == null && resourceName.startsWith("/")) {
-            //certain classloaders need it without the leading /
-            url = cluClassloader.getResource(resourceName.substring(1));
-        }
-
-        if (url == null) {
-            ClassLoader cl = callingClass.getClassLoader();
-
-            if (cl != null) {
-                url = cl.getResource(resourceName);
-            }
-        }
-
-        if (url == null) {
-            url = callingClass.getResource(resourceName);
-        }
-
-        if ((url == null) && (resourceName != null) && (resourceName.charAt(0) != '/')) {
-            return getResource('/' + resourceName, callingClass);
-        }
-
-        return url;
-    }
-
-    /**
-     * Load a given resources. <p/> This method will try to load the resources
-     * using the following methods (in order):
-     * <ul>
-     * <li>From Thread.currentThread().getContextClassLoader()
-     * <li>From ClassLoaderUtil.class.getClassLoader()
-     * <li>callingClass.getClassLoader()
-     * </ul>
-     *
-     * @param resourceName The name of the resource to load
-     * @param callingClass The Class object of the calling object
-     */
-    public static List<URL> getResources(String resourceName, Class<?> callingClass) {
-        List<URL> ret = new ArrayList<URL>();
-        Enumeration<URL> urls = new Enumeration<URL>() {
-            public boolean hasMoreElements() {
-                return false;
-            }
-            public URL nextElement() {
-                return null;
-            }
-
-        };
-        try {
-            urls = Thread.currentThread().getContextClassLoader().getResources(resourceName);
-        } catch (IOException e) {
-            if (log.isLoggable(java.util.logging.Level.FINE)) {
-                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-            }
-            //ignore
-        }
-        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
-            //certain classloaders need it without the leading /
-            try {
-                urls =
-                    Thread.currentThread().getContextClassLoader().getResources(
-                        resourceName.substring(1)
-                    );
-            } catch (IOException e) {
-                if (log.isLoggable(java.util.logging.Level.FINE)) {
-                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-                }
-                // ignore
-            }
-        }
-
-        ClassLoader cluClassloader = ClassLoaderUtils.class.getClassLoader();
-        if (cluClassloader == null) {
-            cluClassloader = ClassLoader.getSystemClassLoader();
-        }
-        if (!urls.hasMoreElements()) {
-            try {
-                urls = cluClassloader.getResources(resourceName);
-            } catch (IOException e) {
-                if (log.isLoggable(java.util.logging.Level.FINE)) {
-                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-                }
-                // ignore
-            }
-        }
-        if (!urls.hasMoreElements() && resourceName.startsWith("/")) {
-            //certain classloaders need it without the leading /
-            try {
-                urls = cluClassloader.getResources(resourceName.substring(1));
-            } catch (IOException e) {
-                if (log.isLoggable(java.util.logging.Level.FINE)) {
-                    log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-                }
-                // ignore
-            }
-        }
-
-        if (!urls.hasMoreElements()) {
-            ClassLoader cl = callingClass.getClassLoader();
-
-            if (cl != null) {
-                try {
-                    urls = cl.getResources(resourceName);
-                } catch (IOException e) {
-                    if (log.isLoggable(java.util.logging.Level.FINE)) {
-                        log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-                    }
-                    // ignore
-                }
-            }
-        }
-
-        if (!urls.hasMoreElements()) {
-            URL url = callingClass.getResource(resourceName);
-            if (url != null) {
-                ret.add(url);
-            }
-        }
-        while (urls.hasMoreElements()) {
-            ret.add(urls.nextElement());
-        }
-
-
-        if (ret.isEmpty() && (resourceName != null) && (resourceName.charAt(0) != '/')) {
-            return getResources('/' + resourceName, callingClass);
-        }
-        return ret;
-    }
-
-
-    /**
-     * This is a convenience method to load a resource as a stream. <p/> The
-     * algorithm used to find the resource is given in getResource()
-     *
-     * @param resourceName The name of the resource to load
-     * @param callingClass The Class object of the calling object
-     */
-    public static InputStream getResourceAsStream(String resourceName, Class<?> callingClass) {
-        URL url = getResource(resourceName, callingClass);
-
-        try {
-            return (url != null) ? url.openStream() : null;
-        } catch (IOException e) {
-            if (log.isLoggable(java.util.logging.Level.FINE)) {
-                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-            }
-            return null;
-        }
-    }
-
-    /**
-     * Load a class with a given name. <p/> It will try to load the class in the
-     * following order:
-     * <ul>
-     * <li>From Thread.currentThread().getContextClassLoader()
-     * <li>Using the basic Class.forName()
-     * <li>From ClassLoaderUtil.class.getClassLoader()
-     * <li>From the callingClass.getClassLoader()
-     * </ul>
-     *
-     * @param className The name of the class to load
-     * @param callingClass The Class object of the calling object
-     * @throws ClassNotFoundException If the class cannot be found anywhere.
-     */
-    public static Class<?> loadClass(String className, Class<?> callingClass)
-        throws ClassNotFoundException {
-        try {
-            ClassLoader cl = Thread.currentThread().getContextClassLoader();
-
-            if (cl != null) {
-                return cl.loadClass(className);
-            }
-        } catch (ClassNotFoundException e) {
-            if (log.isLoggable(java.util.logging.Level.FINE)) {
-                log.log(java.util.logging.Level.FINE, e.getMessage(), e);
-            }
-            //ignore
-        }
-        return loadClass2(className, callingClass);
-    }
-
-    private static Class<?> loadClass2(String className, Class<?> callingClass)
-        throws ClassNotFoundException {
-        try {
-            return Class.forName(className);
-        } catch (ClassNotFoundException ex) {
-            try {
-                if (ClassLoaderUtils.class.getClassLoader() != null) {
-                    return ClassLoaderUtils.class.getClassLoader().loadClass(className);
-                }
-            } catch (ClassNotFoundException exc) {
-                if (callingClass != null && callingClass.getClassLoader() != null) {
-                    return callingClass.getClassLoader().loadClass(className);
-                }
-            }
-            if (log.isLoggable(java.util.logging.Level.FINE)) {
-                log.log(java.util.logging.Level.FINE, ex.getMessage(), ex);
-            }
-            throw ex;
-        }
-    }
-}