I\'m setting up a standalone Java service with an in-process, in-memory HSQL database.
Persistence.xml
As per the above post, I was using Hibernate 3.5.6 together with HSQLDB 2.0.1 but it was still throwing the error. I also corrected the url but of no help. Finally changed HQSL jar to 1.8.1 version from http://sourceforge.net/projects/hsqldb/files/hsqldb/hsqldb_1_8_1/hsqldb_1_8_1_3.zip/download and it worked