Spring/spring-webflow
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class loading patch for deserilization

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This commit is contained in:
Keith Donald
2008-05-07 15:12:36 +00:00
parent e6bd1d78d8
commit d6b2b0132e
1 changed files with 28 additions and 0 deletions
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28
spring-webflow/src/main/java/org/springframework/webflow/execution/repository/snapshot/SerializedFlowExecutionSnapshot.java
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@@ -26,6 +26,8 @@ import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamClass;
import java.lang.reflect.Modifier;
import java.lang.reflect.Proxy;
import java.util.Arrays;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
@@ -238,5 +240,31 @@ class SerializedFlowExecutionSnapshot extends FlowExecutionSnapshot implements E
return ClassUtils.forName(desc.getName(), classLoader);
}
protected Class resolveProxyClass(String[] interfaces) throws IOException, ClassNotFoundException {
ClassLoader nonPublicLoader = null;
boolean hasNonPublicInterface = false;
// define proxy in class loader of non-public interface(s), if any
Class[] classObjs = new Class[interfaces.length];
for (int i = 0; i < interfaces.length; i++) {
Class cl = ClassUtils.forName(interfaces[i], classLoader);
if ((cl.getModifiers() & Modifier.PUBLIC) == 0) {
if (hasNonPublicInterface) {
if (nonPublicLoader != cl.getClassLoader()) {
throw new IllegalAccessError("Conflicting non-public interface class loaders");
}
} else {
nonPublicLoader = cl.getClassLoader();
hasNonPublicInterface = true;
}
}
classObjs[i] = cl;
}
try {
return Proxy.getProxyClass(hasNonPublicInterface ? nonPublicLoader : classLoader, classObjs);
} catch (IllegalArgumentException e) {
throw new ClassNotFoundException(null, e);
}
}
}
}