I don't know it depends on your implementation of hashCode() method.
Are you using 1.5?
static int hash(Object x) {
int h = x.hashCode(); <-- your programm is here
h += ~(h << 9);
h ^= (h >>> 14);
h += (h << 4);
h ^= (h >>> 10);
return h;
}
I think chances are low that the you see threads in this method often.
Would you mind checking the hashCode() method implementation of the
objects you put in the map?
Maybe someone programmed some kind of very-cool-hash-code-optimization
and got an infinite loop.
regards
Leon
On 4/20/06, Gustavo Noronha <[EMAIL PROTECTED]> wrote:
> 2006/4/20, Leon Rosenberg <[EMAIL PROTECTED]>:
> >
> > do you see those often?
>
>
> The developers tell me that this is part of a process that generates an XML
> file that goes in a new clob column of the database. They are running a
> batch process during the night that is generating the XML for each of the
> already existing records, and some XMLs are being generated during the day
> while users complete filling the data they need to fill in.
>
> Does it look faulty?
>
> Right now I have some processes using 100% cpu and the only reference to
> HashMap I have is this:
>
> "http-8080-Processor19" daemon prio=1 tid=0x088b5120 nid=0x5b5d runnable
> [0x6c506000..0x6c5086c0]
> at java.util.HashMap.hash(HashMap.java:264)
> at java.util.HashMap.get(HashMap.java:320)
> at org.apache.commons.collections.SequencedHashMap.get(Unknown
> Source)
> at org.hibernate.util.IdentityMap.get(IdentityMap.java:132)
> at org.hibernate.engine.PersistenceContext.getEntry(
> PersistenceContext.java:373)
> at org.hibernate.type.CollectionType.getKeyOfOwner(
> CollectionType.java:289)
> at org.hibernate.engine.Collections.processReachableCollection(
> Collections.java:137)
> at org.hibernate.event.def.FlushVisitor.processCollection(
> FlushVisitor.java:37)
>
> Thanks,
>
> --
> Gustavo Noronha Silva
> Coordenação de Segurança e Sustentação
> Ministério do Desenvolvimento Social - Brasil
>
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