[FIXED] The type org.eclipse.jdt.annotation.NonNull cannot be resolved. It is indirectly referenced from required .class files

Issue

When I use the Java 8 method reference double colon operator (::) with new operator (e.g. MyType::new), I get this error in Eclipse of Spring Tool suite (STS):

The type org.eclipse.jdt.annotation.NonNull cannot be resolved. It is indirectly referenced from required .class files

How to get rid of this error?

Solution

Error description is provided in Stephan Herrmann's comment. There is open Eclipse issue to make this issue more user friendly.

Solution is to include following dependency:

<dependency>
    <groupId>org.eclipse.jdt</groupId>
    <artifactId>org.eclipse.jdt.annotation</artifactId>
    <version>2.0.0</version>
</dependency>

Answered By - luboskrnac
Answer Checked By - Gilberto Lyons (JavaFixing Admin)