Eclipse error “Could not find or load main class”

In my case issue occurred because of missing library. So below are the steps to make it work

1) Right click your project, Build Path --> Configure Build Path --> Java Build Path --> Libraries

2) Remove the missing libraries

3) Go to your main class and run it

ADF Basics: Set Background Image for a Page(.jsf) in ADF 12c

In this post, I will give hint to set background image for a page in ADF 12c(12.1.3.0.0).


As you know, when you create .jsf page immediately after root component of jsf page(f:view) we have ad:document component.

So, if we set background image for this component, then it occupy entire page.

The Tomcat connector configured to listen on port 8090 failed to start : Spring Boot Application - Eclipse

Issue : 

The Tomcat connector configured to listen on port 8090 failed to start. The port may already be in use or the connector may be misconfigured.

Below mentioned are the solutions which might help you

Step1: In the application.properties file add server.port with port number other than 8090 as shown below

and re run the application

Step 2: Stop the application by clicking red icon and re run the application

Hope this helps.

Any other solutions for above problem are welcome:)