gsjava lib/tools.jar dependencies could not be resolved

[ERROR] Failed to execute goal org.codehaus.mojo:aspectj-maven-plugin:1.7:compile (default) on project koreaid: Execution default of goal org.codehaus.mojo:aspectj-maven-plugin:1.7:compile failed: Plugin org.codehaus.mojo:aspectj-maven-plugin:1.7 or one of its dependencies could not be resolved: Could not find artifact com.sun:tools:jar:1.8.0_171 at specified path C:\Program Files\Java\jre1.8.0_171/../lib/tools.jar -> [Help 1]

이클립스 

Window - Preference - Java - Installed JREs - Edit - Add External JARs

JDK 설치경로/lib/tools.jar를 추가해주면 된다.

이렇게 해두 안되서 어차피 경로를 못 찾는거니깐 나는 lib/tools.jar  폴더 전체를 오류나는 폴더로 복사를 하니 해결됨.