Eclipse RCP 2020-09 , Java JDK 11 , Window10

Step

1 . Create A Simple Plugin Project( click [ next ] [ finish ] )

2 . Require-Bundle: org.eclipse.jdt.core

3 . Create A Java File

import javax.lang.model.type.NullType;

public class A {
    
    public static void main(String[] args) {
        NullType type ;
    }

}

Compilation error : The package javax.lang.model.type is accessible from more than one module: <unnamed>, java.compiler

I try not to rely on org.eclipse.jdt.core ( delete Require-Bundle: org.eclipse.jdt.core )

Compilation success !

It seems that there is a conflict between org.eclipse.jdt.core and javax.lang.model

I have imported almost all org.eclipse.xxx without this problem. Only org.eclipse.jdt.core has this problem

I also checked the internal information of org.eclipse.jdt.core and found no special settings

Why? How can I solve this problem ? Help me , please !

CodePudding user response：

Upgrading to eclipse 2021-12 can solve the problem

Thank you , @howlger