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[equinox-dev] EventAdmin and topic legality

Good morning.

 

Forgive my posting if this is not the right forum to be asking these questions.  If so, redirection would be appreciated.

 

I’m having a spot of trouble with the Equinox EventAdmin.  It seems like the Equinox EventAdmin will not accept a topic that contains certain tokens, producing:

 

Exception in thread "Thread-0" java.lang.IllegalArgumentException: invalid topic

        at org.osgi.service.event.Event.validateToken(Event.java:187)

        at org.osgi.service.event.Event.validateTopicName(Event.java:161)

        at org.osgi.service.event.Event.<init>(Event.java:46)

        …

 

The core OSGi spec defines a token as one or more alphanumerics, underscores, or dashes (1.4.2 - General Syntax Definitions).  Based on my investigation, the Equinox implementation seems to have a more strict interpretation of what is a valid token.  Dashes seem to be completely disallowed.  Numbers and underscores can be present, but cannot be the first character in a token.  Overall this seems similar to Java variable naming rules, but I was curious whether my interpretation of the spec is incorrect or if there was a reason for the discrepancy.

 

Many thanks,

-Mike Furtak