Talking to our java programmer he explained to me those errors are normally if a computer is having memory issues (as in bad possibly RAM).
When you have a little bit of time could you run the Windows 7 memory diagnostics test? It does require you to restart the computer and can take a good 15min to run (much longer if it finds problems).
To run the Memory Diagnostics Tool manually- Open Memory Diagnostics Tool by clicking the Start button, and then clicking Control Panel. In the search box, type Memory, and then click Diagnose your computer's memory problems.* Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
- Choose when to run the tool.
From:
Microsoft: Diagnosing memory problems on your computer.
After its done running please note any errors if any it has found under Status: in the yellow text.
Thanks