Yes all of my imports are the Java.util implementation of the hashset. I'm not using the datanucleus one anywhere...but still get that error.
On Mar 7, 2:07 pm, harsh yadav <[email protected]> wrote: > Did you tried using java.util.HashSet?? > > That should work fine and is serializable. > > --Harsh Yadav > > > > On Mon, Mar 7, 2011 at 1:31 AM, Chris D <[email protected]> wrote: > > Hey everyone, > > > So I have a pool that has many users, and users can also have many > > pools, so it's a pretty straightforward many to many relationship. So > > take for instance my pool class, I have a HashSet<Long> > > userIDs ...which contains all the ids of users. When I try to create > > a new pool, I get the following error message... > > > "Caused by: com.google.gwt.user.client.rpc.SerializationException: > > Type 'org.datanucleus.sco.backed.HashSet' was not included in the set > > of types which can be serialized by this SerializationPolicy or its > > Class object could not be loaded. For security purposes, this type > > will not be serialized.: instance = []" > > > My Pool class and PoolUser class both have default constructors. The > > persistent parts of the pool class look like this.. > > > @PrimaryKey > > @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) > > private Long id; > > @Persistent > > private String name; > > @Persistent > > private HashSet<Long> users = new HashSet<Long>(); > > > Anyway, any ideas on how I might fix this would be great. > > > Thanks > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google Web Toolkit" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
