Glassfish Connection could not be allocated because: Identifier name '...' is too long

So Im trying to run a Java EE project that was developed a couple years ago and Im getting this error:

Connection could not be allocated because: Identifier name 'c:\glassfish-3.0\glassfish\domains\domain1/lib/databases/ejbtimer' is too long

Trying to run it on JDK7 and GlassFish 3

Tried searching for anything similar but to no avail

Any suggestions as to what is the cause/how to solve it?