Query1 has a method getSelect().
assertTrue(Query1.getSelect().isEmpty());
In the test, I got the java.lang.NullPointerException error.
How can I solve this error?
I am just learning the Junit5 test, not sure how to deal with the NullPointerException error.
Related
I'm playing with Akka HTTP websocket with java, I was trying to implement the server side with the example from https://github.com/akka/akka-http/blob/v10.0.1/docs/src/test/java/docs/http/javadsl/server/WebSocketCoreExample.java, but I have come up with an exception when I ran the application.
Exception in thread "main" java.lang.NoSuchMethodError: com.typesafe.sslconfig.ssl.SSLConfigFactory$.parse(Lcom/typesafe/config/Config;)Lcom/typesafe/sslconfig/ssl/SSLConfigSettings;
at com.typesafe.sslconfig.akka.AkkaSSLConfig$.defaultSSLConfigSettings(AkkaSSLConfig.scala:34)
at com.typesafe.sslconfig.akka.AkkaSSLConfig$.createExtension(AkkaSSLConfig.scala:29)
at com.typesafe.sslconfig.akka.AkkaSSLConfig$.createExtension(AkkaSSLConfig.scala:19)
at akka.actor.ActorSystemImpl.registerExtension(ActorSystem.scala:746)
at akka.actor.ExtensionId$class.apply(Extension.scala:79)
at com.typesafe.sslconfig.akka.AkkaSSLConfig$.apply(AkkaSSLConfig.scala:24)
at com.typesafe.sslconfig.akka.AkkaSSLConfig$.apply(AkkaSSLConfig.scala:19)
at akka.http.scaladsl.HttpExt.(Http.scala:47)
at akka.http.scaladsl.Http$.createExtension(Http.scala:813)
at akka.http.scaladsl.Http$.createExtension(Http.scala:689)
at akka.actor.ActorSystemImpl.registerExtension(ActorSystem.scala:746)
at akka.actor.ExtensionId$class.apply(Extension.scala:79)
at akka.http.scaladsl.Http$.apply(Http.scala:808)
at akka.http.scaladsl.Http$.apply(Http.scala:689)
at akka.http.javadsl.Http.delegate$lzycompute(Http.scala:45)
at akka.http.javadsl.Http.delegate(Http.scala:45)
at akka.http.javadsl.Http.defaultServerHttpContext(Http.scala:682)
at akka.http.javadsl.Http.bindAndHandleSync(Http.scala:220)
at com.tr.ap.endpoint.WebSocketServer.startUp(WebSocketServer.java:58)
at com.tr.ap.endpoint.WebSocketServer.main(WebSocketServer.java:50)
Can anyone help me with the issue, thank you.
I have some problem with groovy. Sometimes when script is executed then exception NullPointerException is thrown but allways when I debugging the script the exception is no occurred. It looks like that my object sometimes is not created in time and Groovy try execute method on it. Someone have idea what could be the reason of problem:
Below is mentioned exception:
Caused by: java.lang.NullPointerException: Cannot invoke method getService() on null object.
I am having problems getting web socket subscriptions to work properly using Spring with an embedded Tomcat server.
When running this stomp-chat application I get the following error:
org.springframework.messaging.MessageHandlingException: Expression evaluation failed: #chatRoomSessions[headers.simpDestination].add(T(reactor.tuple.Tuple).of(headers.simpSessionId, headers.simpSubscriptionId));
nested exception is org.springframework.expression.spel.SpelEvaluationException: EL1005E:(pos 58): Type cannot be found 'reactor.tuple.Tuple'
I tried to add the following dependency:
compile ("io.projectreactor:reactor-stream:$reactorVersion")
but it gave the same error. Any help would be appreciated.
OK. I see the problem.
The dependency for the io.projectreactor:reactor-stream:2.0.8 isn't enough.
The Tuple class has been moved to the new reactor.fn.tuple package.
So, you still have to fix all the reactor.tuple.Tuple mentioning in the stomp-server.xml to the new reactor.fn.tuple.Tuple.
The sample will be fixed soon: https://github.com/spring-projects/spring-integration-samples/issues/185
Sorry for inconvenience.
My code is trowing ArrayIndexOutOfBoundsException in a JUnit 4.12 test, I want to stop at that exception when it is thrown, but I can't for some reason.
Here are my debugger settings:
When I run my code with Debug, the exception is just logged to the console, and the debugger won't stop at the line where it has occurred.
What am I doing wrong?
Looks like the only way to stop at exception in a JUnit test is to create an exception breakpoint rule for that exception, because JUnit catches any excepiton that occurred in a test. Here is what I did:
I have added a method to my stateless sessionBean (getFNEdetails) with one String parameter.
But I am getting this error when I try to test in weblogic10 server
java.rmi.UnmarshalException: Could not unmarshal method ID; nested exception is:
java.rmi.UnmarshalException: Method not found: 'getFNEdetails(ILjava.lang.String;)
Any one can help me out here...
Thanks in advance.
I got solution for this after my 3 hr worst time... its a deployment come build problem... Solution is Delete all the build files and rebuild all the files... it should be work fine...
Thanks for me!!!