Spring boot Jpa Entity not managed.

The Spring boot app is not able to read Entity.

provide the @EntityScan("com.example.dmo.entity") package in Application class.

Java OpenJDK tools not found.

Please refer the below link which is works for me.

https://unix.stackexchange.com/questions/352466/why-do-i-see-unable-to-locate-tools-jar-expected-to-find-it-in-when-i-ru?answertab=votes#tab-top.

Spring Boot STS - Error: cannot find main class

The ERROR due to the Classpath is too long for your Application.

Go to the Properties of your project in Eclipse or STS

1) Properties> Java Compiler> Annotation Processing> Factory Path

Un-Tick the Project Specific Settings. Below is the screenshot for your reference.

2) Make sure remove the Test path from the Java Build Path.

 3) Run the Spring Boot Configuration As shown below.