Hi John,
In order to narrow down the search, have you tried the 1.5.2 webapp in your
previous app server etc. ?
That way you could know if Stripes is the problem, or if it's your app
server...
Cheers
Remi
2011/5/4 Newman, John W <newma...@d3onc.com>
> No sir, just the core jar .. we’re not really doing anything too wild..
> if anything the object hierarchy we have is a bit weird due to jaxb
> generation. But these same classes have always worked just fine. Now after
> 1.5.2 it works fine .. for a while then something happens to disturb it.
>
>
>
> net.sourceforge.stripes.util.bean.PropertyExpressionEvaluation
> #fillInTypeInformation()
>
>
>
> one minute says java.lang.Short
>
> Same class, same field, next minute says java.lang.Serializable.
>
>
>
> We are not doing any crazy class reloading on the fly or anything like
> that. I know bean introspection is cached somewhere, but as far as I know
> there is no background thread going on updating those results as they should
> never change.
>
>
>
> Our class hierarchy is a bit wild like I said.
>
>
>
> public class TheBindingTarget extends AbstractCompositeKeyEntity {
>
> private Short id; // initially this is detected as Short, at some
> point it changes to Serializable.
>
> public Short getID() { return this.ID; }
>
> public void setID(Short id) { this.ID = id; }
>
> // other fields, not important
>
> }
>
>
>
> public abstract class AbstractCompositeKeyEntity extends
> AbstractEntity<Short> {
>
> // overrides for equals and hashcode for a 3 part business key (ID,
> version, revision)
>
> }
>
>
>
> public abstract class AbstractEntity<PK extends Serializable> implements
> Entity<PK> {
>
> // equals and hashcode for 1 part key, ID
>
> }
>
>
>
> public interface Entity<PK extends Serializable> extends Serializable {
>
> PK getID();
>
> void setID(PK id);
>
> }
>
>
>
> The uppercase of “ID” comes from jaxb generated classes, which come from
> someone else’s xsd that I cannot control. I don’t think the case is an
> issue however. Given the nature of that hierarchy with generics and all
> that, I can understand how the “get type” code could be slightly thrown off
> for this case given the complexity going on in there. However, it should be
> giving the same result every time – not changing from one minute to the next
> right?
>
>
>
> -John
>
>
>
> *From:* Samuel Santos [mailto:sama...@gmail.com]
> *Sent:* Wednesday, May 04, 2011 11:35 AM
> *To:* Stripes Users List
> *Subject:* Re: [Stripes-users] Strange introspection issue after upgrade
> to 1.5.2
>
>
>
> Hi John,
>
> Do you use any Stripes extension/plugin?
>
> Cheers,
>
> --
> Samuel Santos
> http://www.samaxes.com/
>
> On Wed, May 4, 2011 at 3:24 PM, Newman, John W <newma...@d3onc.com>
> wrote:
>
> All,
>
>
>
> We’ve been using jdk5 / jboss4.22 / stripes 1.5 in production, stable for a
> long time now. We’ve decided it’s about time to do some upgrades to jdk6 /
> jboss 5. The classpath scanner in stripes 1.5 does not work on jboss 5,
> which was fixed in 1.5.2 as a result of
> http://www.stripesframework.org/jira/browse/STS-655
>
>
>
> Ok so in addition to jdk / jboss upgrade, we have to upgrade stripes.jar.
> Not a big deal. Everything has gone smoothly, except for one remaining
> issue that is about as bizarre as it gets. The application starts up and
> runs fine. But, if you leave it sit idle for a period of time, say ~30
> minutes, sometimes, the bean introspection results will somehow change.
> This doesn’t make a whole lot of sense to me, but it’s what we’re seeing.
>
>
>
> After startup, DefaultActionBeanPropertyBinder says this one field is of
> type java.lang.Short (which it is), it will take a value and bind into that
> no problem. You can click around all you want and everything is good. Now,
> ~30 minutes of idle time go by, all of a sudden
> DefaultActionBeanPropertyBinder now decides to say this same field is of
> type java.lang.Serializable, foolishly tries to do new
> Serializable(“value”); and fails. I can’t explain why that result would
> change over time.
>
>
>
> Might we be running into a regression that came from the changes in
> http://www.stripesframework.org/jira/browse/STS-664 also in 1.5.2 ?
> That’s the only thing I’m seeing related to introspection. Because this is
> such a weird issue, I’m not even sure if it’s stripes related. We are
> working on narrowing it down and continuing to research, but I thought I’d
> ask here first. Unfortunately I can’t run 1.5 in jboss5, but we are trying
> 1.5.2 in jboss4 right now (I suspect this will still show the issue).
>
>
>
> Is there any reasonable explanation for that change causing the result to
> say “java.lang.Short” one minute, and “java.lang.Serializable” the next?
> Has anyone else ran into this?
>
>
>
>
>
> Thanks in advance for any ideas.
>
> -John
>
>
>
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