[rle125]

1. let the system sit for about 5 minutes post-startup before issuing a request. If that works, that's a big clue

Waited 30 minutes but still received the server-side exception.

2. if you can, attach a debugger and look at whether other threads are active when this error occurs

Will attempt this.

POJO and ds.xml sent via email.

[Isomorphic]

Following up on this:

Were you using Hibernate 4.2.17 with your 12.1 installation? If so, please let us know the exact build date of the SmartGWT 12.1 installation.

Secondly, your POJO contains many references to other application classes and we obviously have no idea what those classes look like. So we had to strip it down basically to field and function definitions, and having done so we do not see the ConcurrentModificationException you are getting (either with Hibernate 3 or Hibernate 4.2.17). However, from the location of the failure, we think the issue is with the @Embedded "ipDeviceInstance" field. It also seems fishy that the POJO class both extends IPDeviceInstance and declares an @Embedded field of that type. Does this observation help? For example, should that embedded IPDeviceInstance even be there?

We are now at a stage where we can't investigate further with the information we have. The next stage, if the above comments do not help you resolve things, would be to provide us with the IPDeviceInstance class, stripped down to just annotated fields and functions, so we can try again to repro the issue. But it really does look like an issue with Hibernate internal state, caused by a persistent class both extending a base class, and containing an embedded reference to an instance of that same base class

Regards,
Isomorphic Software Support

[rle125]

Yes, we were using Hibernate 4.2.17 successfully with SmartGWT Power 12.1p. Build date was 7/26/23.

I'll try removing the @Embedded tag. If it doesn't help I'll send the additional files.

[rle125]

Removing the @Embedded tag resolved the ConcurrentModificationException on 3 of the datasources that contained that annotation.

However, I get the same ConcurrentModificationException on another datasource, but without the @Embedded tag. I'll be sending the POJO and ds.xml for that datasource via email.