I've found that by modifying a small block of code, I can solve this problem:
final String name = String.format( "BasicType adapter for AttributeConverter<%s,%s>", entityAttributeJavaType.getSimpleName(), databaseColumnJavaType.getSimpleName() );
modified to this:
final String name = entityAttributeJavaType.getCanonicalName();
I've used the latest version 4.3.7-SNAPSHOT from git and all tests passed. I'll come back with confirmation after some more in development tests.