Class.forName() in an osgi library jar - ModuleClassLoader throws ClassNotFound
I have spring libraries installed as osgi modules. Spring-security is started up with giving a strategy class name in the initializer, and then it uses Class.forName() to load that, like:
private static void initialize() {
if ((strategyName == null) || "".equals(strategyName)) {
// Set default
strategyName = MODE_THREADLOCAL;
}
if (strategyName.equals(MODE_THREADLOCAL)) {
strategy = new ThreadLocalSecurityContextHolderStrategy();
} else if (strategyName.equals(MODE_INHERITABLETHREADLOCAL)) {
strategy = new InheritableThreadLocalSecurityContextHolderStrategy();
} else if (strategyName.equals(MODE_GLOBAL)) {
strategy = new GlobalSecurityContextHolderStrategy();
} else {
// Try to load a custom strategy
try {
Class<?> clazz = Class.forName(strategyName);
Constructor<?> customStrategy = clazz.getConstructor();
strategy = (SecurityContextHolderStrategy) customStrategy.newInstance();
} catch (Exception ex) {
ReflectionUtils.handleReflectionException(ex);
}
}
initializeCount++;
}
so now I get
Caused by: java.lang.ClassNotFoundException: my.path.to.ServiceSecurityContextHolderStrategy from [Module "deployment.org.springframework.security.core:3.1.3.RELEASE" from Service Module Loader]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) [jboss-modules.jar:1.1.3.GA]
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) [jboss-modules.jar:1.1.3.GA]
at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456) [jboss-modules.jar:1.1.3.GA]
at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423) [jboss-modules.jar:1.1.3.GA]
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) [jboss-modules.jar:1.1.3.GA]
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120) [jboss-modules.jar:1.1.3.GA]
at java.lang.Class.forName0(Native Method) [rt.jar:1.6.0_24]
at java.lang.Class.forName(Class.java:169) [rt.jar:1.6.0_24]
at org.springframework.security.core.context.SecurityContextHolder.initialize(SecurityContextHolder.java:105) [SecurityContextHolder.class:]
... 35 more
for my own class, contained in the deployment. It looks like Spring tries to load the class with its own moduleclassloader, which can't see my class. How am I supposed to circumvent this? I cannot just edit the spring libraries to contain a reference to my class. I've went through https://community.jboss.org/wiki/ModuleCompatibleClassloadingGuide, but I can't change Spring code having Class.forName().