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copied!<p>I'm trying to switch the class loader at runtime:</p> <pre><code>public class Test { public static void main(String[] args) throws Exception { final InjectingClassLoader classLoader = new InjectingClassLoader(); Thread.currentThread().setContextClassLoader(classLoader); Thread thread = new Thread("test") { public void run() { System.out.println("running..."); // approach 1 ClassLoader cl = TestProxy.class.getClassLoader(); try { Class c = classLoader.loadClass("classloader.TestProxy"); Object o = c.newInstance(); c.getMethod("test", new Class[] {}).invoke(o); } catch (Exception e) { e.printStackTrace(); } // approach 2 new TestProxy().test(); }; }; thread.setContextClassLoader(classLoader); thread.start(); } } </code></pre> <p>and:</p> <pre><code>public class TestProxy { public void test() { ClassLoader tcl = Thread.currentThread().getContextClassLoader(); ClassLoader ccl = ClassToLoad.class.getClassLoader(); ClassToLoad classToLoad = new ClassToLoad(); } } </code></pre> <p>(<em>InjectingClassLoader</em> is a class extending the <em>org.apache.bcel.util.ClassLoader</em> which should load the modified versions of classes before asking it's parent for them)</p> <p>I'd like to make the result of "approach 1" and "approach 2" exactly same, but it looks like <em>thread.setContextClassLoader(classLoader)</em> does nothing and the "approach 2" always uses the system classloader (can be determined by comparing tcl and ccl variables while debugging).</p> <p>Is it possible to make <strong>all</strong> classes loaded by new thread use given classloader?</p>

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