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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.shiro.util;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.slf4j.Logger;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.slf4j.LoggerFactory;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.io.InputStream;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.lang.reflect.Constructor;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>/**<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * Utility method library used to conveniently interact with <code>Class</code>es, such as acquiring them from the<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * application <code>ClassLoader</code>s and instantiating Objects from them.<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> *<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * @since 0.1<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> */<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>public class ClassUtils {<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> //TODO - complete JavaDoc<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> /**<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * Private internal log instance.<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> */<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> private static final Logger log = LoggerFactory.getLogger(ClassUtils.class);<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> /**<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * @since 1.0<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> */<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> private static final ClassLoaderAccessor THREAD_CL_ACCESSOR = new ExceptionIgnoringAccessor() {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> @Override<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> protected ClassLoader doGetClassLoader() throws Throwable {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> return Thread.currentThread().getContextClassLoader();<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> }<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> };<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> /**<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * @since 1.0<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> */<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private static final ClassLoaderAccessor CLASS_CL_ACCESSOR = new ExceptionIgnoringAccessor() {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> @Override<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> protected ClassLoader doGetClassLoader() throws Throwable {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> return ClassUtils.class.getClassLoader();<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> }<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> };<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> /**<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * @since 1.0<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> */<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> private static final ClassLoaderAccessor SYSTEM_CL_ACCESSOR = new ExceptionIgnoringAccessor() {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> @Override<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> protected ClassLoader doGetClassLoader() throws Throwable {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> return ClassLoader.getSystemClassLoader();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> }<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> };<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Returns the specified resource by checking the current thread's<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * {@link Thread#getContextClassLoader() context class loader}, then the<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * current ClassLoader (<code>ClassUtils.class.getClassLoader()</code>), then the system/application<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * ClassLoader (<code>ClassLoader.getSystemClassLoader()</code>, in that order, using<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * {@link ClassLoader#getResourceAsStream(String) getResourceAsStream(name)}.<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> *<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * @param name the name of the resource to acquire from the classloader(s).<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @return the InputStream of the resource found, or <code>null</code> if the resource cannot be found from any<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * of the three mentioned ClassLoaders.<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * @since 0.9<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> */<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public static InputStream getResourceAsStream(String name) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> InputStream is = THREAD_CL_ACCESSOR.getResourceStream(name);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> if (is == null) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (log.isTraceEnabled()) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> log.trace("Resource [" + name + "] was not found via the thread context ClassLoader. Trying the " +<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> "current ClassLoader...");<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> is = CLASS_CL_ACCESSOR.getResourceStream(name);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> if (is == null) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> if (log.isTraceEnabled()) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> log.trace("Resource [" + name + "] was not found via the current class loader. Trying the " +<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> "system/application ClassLoader...");<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> }<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> is = SYSTEM_CL_ACCESSOR.getResourceStream(name);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> if (is == null && log.isTraceEnabled()) {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> log.trace("Resource [" + name + "] was not found via the thread context, current, or " +<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> "system/application ClassLoaders. All heuristics have been exhausted. Returning null.");<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> return is;<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> }<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> /**<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * Attempts to load the specified class name from the current thread's<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * {@link Thread#getContextClassLoader() context class loader}, then the<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * current ClassLoader (<code>ClassUtils.class.getClassLoader()</code>), then the system/application<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * ClassLoader (<code>ClassLoader.getSystemClassLoader()</code>, in that order. If any of them cannot locate<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * the specified class, an <code>UnknownClassException</code> is thrown (our RuntimeException equivalent of<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * the JRE's <code>ClassNotFoundException</code>.<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> *<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * @param fqcn the fully qualified class name to load<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> * @return the located class<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * @throws UnknownClassException if the class cannot be found.<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> */<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> public static Class forName(String fqcn) throws UnknownClassException {<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> Class clazz = THREAD_CL_ACCESSOR.loadClass(fqcn);<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> if (clazz == null) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> if (log.isTraceEnabled()) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> log.trace("Unable to load class named [" + fqcn +<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> "] from the thread context ClassLoader. Trying the current ClassLoader...");<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> clazz = CLASS_CL_ACCESSOR.loadClass(fqcn);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> }<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> if (clazz == null) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> if (log.isTraceEnabled()) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> log.trace("Unable to load class named [" + fqcn + "] from the current ClassLoader. " +<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> "Trying the system/application ClassLoader...");<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> }<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> clazz = SYSTEM_CL_ACCESSOR.loadClass(fqcn);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span><a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (clazz == null) {<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> String msg = "Unable to load class named [" + fqcn + "] from the thread context, current, or " +<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> "system/application ClassLoaders. All heuristics have been exhausted. Class could not be found.";<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> throw new UnknownClassException(msg);<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> return clazz;<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span><a name="line.153"></a> |
| <span class="sourceLineNo">154</span> public static boolean isAvailable(String fullyQualifiedClassName) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> try {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> forName(fullyQualifiedClassName);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> return true;<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> } catch (UnknownClassException e) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> return false;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> public static Object newInstance(String fqcn) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> return newInstance(forName(fqcn));<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> public static Object newInstance(String fqcn, Object... args) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> return newInstance(forName(fqcn), args);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public static Object newInstance(Class clazz) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> if (clazz == null) {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> String msg = "Class method parameter cannot be null.";<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> throw new IllegalArgumentException(msg);<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> try {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> return clazz.newInstance();<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> } catch (Exception e) {<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> throw new InstantiationException("Unable to instantiate class [" + clazz.getName() + "]", e);<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> }<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> }<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> public static Object newInstance(Class clazz, Object... args) {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> Class[] argTypes = new Class[args.length];<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> for (int i = 0; i < args.length; i++) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> argTypes[i] = args[i].getClass();<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> Constructor ctor = getConstructor(clazz, argTypes);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> return instantiate(ctor, args);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> }<a name="line.190"></a> |
| <span class="sourceLineNo">191</span><a name="line.191"></a> |
| <span class="sourceLineNo">192</span> public static Constructor getConstructor(Class clazz, Class... argTypes) {<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> try {<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> return clazz.getConstructor(argTypes);<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> } catch (NoSuchMethodException e) {<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> throw new IllegalStateException(e);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> }<a name="line.197"></a> |
| <span class="sourceLineNo">198</span><a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span><a name="line.200"></a> |
| <span class="sourceLineNo">201</span> public static Object instantiate(Constructor ctor, Object... args) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> try {<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> return ctor.newInstance(args);<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> } catch (Exception e) {<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> String msg = "Unable to instantiate Permission instance with constructor [" + ctor + "]";<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> throw new InstantiationException(msg, e);<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> }<a name="line.208"></a> |
| <span class="sourceLineNo">209</span><a name="line.209"></a> |
| <span class="sourceLineNo">210</span> /**<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> * @since 1.0<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> */<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> private static interface ClassLoaderAccessor {<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> Class loadClass(String fqcn);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> InputStream getResourceStream(String name);<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> }<a name="line.216"></a> |
| <span class="sourceLineNo">217</span><a name="line.217"></a> |
| <span class="sourceLineNo">218</span> /**<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> * @since 1.0<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> */<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> private static abstract class ExceptionIgnoringAccessor implements ClassLoaderAccessor {<a name="line.221"></a> |
| <span class="sourceLineNo">222</span><a name="line.222"></a> |
| <span class="sourceLineNo">223</span> public Class loadClass(String fqcn) {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> Class clazz = null;<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> ClassLoader cl = getClassLoader();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> if (cl != null) {<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> try {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> clazz = cl.loadClass(fqcn);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> } catch (ClassNotFoundException e) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> if (log.isTraceEnabled()) {<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> log.trace("Unable to load clazz named [" + fqcn + "] from class loader [" + cl + "]");<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> }<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> }<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> return clazz;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span><a name="line.237"></a> |
| <span class="sourceLineNo">238</span> public InputStream getResourceStream(String name) {<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> InputStream is = null;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> ClassLoader cl = getClassLoader();<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> if (cl != null) {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> is = cl.getResourceAsStream(name);<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> }<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> return is;<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> protected final ClassLoader getClassLoader() {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> try {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> return doGetClassLoader();<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> } catch (Throwable t) {<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> if (log.isDebugEnabled()) {<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> log.debug("Unable to acquire ClassLoader.", t);<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> }<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> }<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> return null;<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> }<a name="line.256"></a> |
| <span class="sourceLineNo">257</span><a name="line.257"></a> |
| <span class="sourceLineNo">258</span> protected abstract ClassLoader doGetClassLoader() throws Throwable;<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> }<a name="line.259"></a> |
| <span class="sourceLineNo">260</span>}<a name="line.260"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
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