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
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