Q: Howto fix database connection errors? It was working before...
A: In short: Use the generic JDBC datasource type like in Example with hsql using database type generic
JasperStarter provides some simple options to make it easy to work
with some popular databases (f.e. Mysql). These options work only
for some simple use cases. For other databases or more advanced
connection options you must use the generic JDBC datasource type -t generic and
provide any needed option in the JDBC-URL (Option: --db-url and
--jdbc-driver).
Nowadays, when products tend to have much stronger security defaults, it happens that you cannot connect to a new configured database with simple standard options. You must read and fully understand your database documentation, download the correct JDBC-Driver and provide all necessary parameters in a valid JDBC-URL. For Mysql you find some information here: jdbc-url-format and using-ssl
Q: I cannot compile/run a report that I created with the newest Jaspersoft Studio. Is this a bug?
A: No! JasperStarter is just a command line wrapper around the
JasperReports library. It's features are defined by the version of
the JasperReports library which is shipped with JasperStarter. You
cannot use any feature of JasperReports that is not supported by the
version of this library. The best option is to use a version of
Jaspersoft Studio that matches the version of JasperReports inside
JasperStarter. You can see the version by calling: jasperstarter -V