Null pointer exception for ApplicationEntity.getRid()

[romanstrobl]

Log:

java.lang.NullPointerException: Cannot invoke "io.getlime.security.powerauth.app.server.database.model.entity.ApplicationEntity.getRid()" because "this.application" is null
	at io.getlime.security.powerauth.app.server.database.model.entity.MasterKeyPairEntity.toString(MasterKeyPairEntity.java:237) ~[classes/:1.5.0-SNAPSHOT]

[romanstrobl]

This issue occurs when root logging level is set to TRACE.

[banterCZ]

It is strange. I see that NPE is possible ", application=" + application.getRid() but application is nullable = false, foreign key exists and when a new MasterKeyPairEntity is created, the application is set. It could be handy to know the specific use-case.