I tried to deploy my eclipse scout application (framework) on tomcat. I configured the application to http correctly. The server and consequently the UI can't start.
Here's the stacktrace of the exception:
[33msyscodeapp_1 |[0m Exception in thread "Thread-6" 19-Nov-2016 04:50:49.525 SEVERE [http-apr-8080-exec-4] org.apache.catalina.core.StandardContext.startInternal Context [/org.eclipse.scout.sysmanagement.org.eclipse.scout.sysmanagement.ui.html] startup failed due to previous errors
[33msyscodeapp_1 |[0m java.lang.NullPointerException
[33msyscodeapp_1 |[0m at org.eclipse.scout.rt.platform.internal.PlatformImplementor.fireStateEvent(PlatformImplementor.java:308)
[33msyscodeapp_1 |[0m at org.eclipse.scout.rt.platform.internal.PlatformImplementor.changeState(PlatformImplementor.java:284)
[33msyscodeapp_1 |[0m at org.eclipse.scout.rt.platform.internal.PlatformImplementor.start(PlatformImplementor.java:141)
[33msyscodeapp_1 |[0m at org.eclipse.scout.rt.platform.internal.PlatformStarter.run(PlatformStarter.java:32)
Any ideas?
Here's the solution:
Since I was running my tomcat on docker I used the latest available image of tomcat:8.0. After long research I noticed that the JVM version of my tomcat was Java 1.7, but I compiled my project on Java 1.8. That was the reason for the strange errors.
Now deployment works completely fine. I hope that this post helps others not to lose much time anymore for this kind of error.