[jersey-dev] Jersey error : The resource configuration is not modifiable

[Sonali Dasgupta <sonalidasgupta95.2011@xxxxxxxxx>]

Hi Team,

I would greatly appreciate if you could help me out with the below issue, which is a high priority issue for my work project.

I have two web applications deployed at the same host and port but with different endpoint URIs. When I try to stop the server which runs these two web applications, I get the below error with the below stack trace :

2020-04-16 16:09:03.502 WARN  [pool-13-thread-1] org.eclipse.jetty.server.handler.ContextHandler.ROOT - unavailable
java.lang.IllegalStateException: The resource configuration is not modifiable in this context.
	at org.glassfish.jersey.server.ResourceConfig$ImmutableState.register(ResourceConfig.java:274)
	at org.glassfish.jersey.server.ResourceConfig$ImmutableState.register(ResourceConfig.java:221)
	at org.glassfish.jersey.server.ResourceConfig.register(ResourceConfig.java:453)
	at org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:385)
	at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:170)
	at org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:362)
	at javax.servlet.GenericServlet.init(GenericServlet.java:244)
	at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:671)
	at org.eclipse.jetty.servlet.ServletHolder.initialize(ServletHolder.java:428)
	at org.eclipse.jetty.servlet.ServletHandler.lambda$initialize$0(ServletHandler.java:750)
	at java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:352)
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:483)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
	at java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:743)
	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
	at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:744)
	at org.eclipse.jetty.servlet.ServletHandler.updateMappings(ServletHandler.java:1449)
	at org.eclipse.jetty.servlet.ServletHandler.setServletMappings(ServletHandler.java:1536)

I have tried my best to share all the information possible, but could not share the exact use case since it involves confidential projects. I would be extremely grateful if you could please help me out with this issue.

Thanks and Regards,

Sonali Dasgupta