Hello TomEE friends, I was looking to patch a bug we encountered and could
use some advice from the other committers.
Given this CDI Bean:
@SessionScoped
@Named
public class MyPageBean implements Serializable {
@Inject private HttpServletRequest req;
... use the bean somewhere in EL
}
This will result in an exception when serializing the Session (For session
replication or passivation): java.lang.RuntimeException:
java.lang.RuntimeException: java.io.NotSerializableException:
org.apache.openejb.cdi.Proxys$ThreadLocalHandler
Looking at the Proxys.java code, it contains a private static class called
ThreadLocalHandler, that is indeed not Serializable. For fun, I made
ThreadLocalHandler implement Serializable, but that just resulted in
another error because ThreadLocalHandler contains a ThreadLocal field which
is definitely not Serializable.
ThreadLocalHandler for HttpServletRequest is invoked by
TomcatWebappBuilder.setComponentsUsedByCDI():
https://github.com/apache/tomee/blob/tomee-8.x/tomee/tomee-catalina/src/main/java/org/apache/tomee/catalina/TomcatWebAppBuilder.java#L358
I'm at a bit of a loss on how to fix this. My assumption is the
ThreadLocalHandler was designed as a generic proxy object that defers to an
internal ThreadLocal object. I wonder if marking the ThreadLocal as
transient is sufficient, but I could use some input.
Thank you,
--
Jonathan | [email protected]
Pessimists, see a jar as half empty. Optimists, in contrast, see it as half
full.
Engineers, of course, understand the glass is twice as big as it needs to
be.
