[jetty-users] Jetty-9.1.4 : NPE in Log.java

["MILLON, YVES (YVES)" <yves.millon@xxxxxxxxxxxxxxxxxx>]

Hi,

 

Sometimes, on some hardware,  we got exceptions at startup due to NPE in the class "Log.java":

 

Caused by: java.lang.NullPointerException

     at org.eclipse.jetty.util.log.Log.getLogger(Log.java:288)

     at org.eclipse.jetty.util.log.Log.getLogger(Log.java:271)

     at

org.eclipse.jetty.websocket.jsr356.server.BasicServerEndpointConfigurator.<clinit>(BasicServerEndpointConfigurator.java:34)

     ... 54 more

 

Caused by: java.lang.NullPointerException

         at org.eclipse.jetty.util.log.Log.getLogger(Log.java:288)

         at org.eclipse.jetty.util.log.Log.getLogger(Log.java:271)

         at

org.eclipse.jetty.security.authentication.LoginAuthenticator.<clinit>(LoginAuthenticator.java:38)

         ... 13 more

 

It seems that the method "Log.initialized()" is not fully thread safe because the default logger is set outside of the synchronized block.

 

Regards,

Yves