InteruptionException while parsing osm map

While the graphhooper library parse the openstreet map of Germany an intertupted exception occures on my glassfish server (wohle log as txt appened). Exception.txt (14.5 KB)
When I run some testcases in my IDE (netbeans) graphhopper can parse the whole map. I wonder if this is a resource problem in the glassfish configuration or not? The memory of the glassfish server is up to 2 GB. For any help I would be grateful.

We do not support older version, but yes, 2GB RAM seems to be too little for whole Germany.

Thanks for the answer. What would be an appropriate RAM amount?

Try 4GB (or more if you have multiple vehicles and CH enabled)