How to solve : Unable to Process Jar entry

Question

I am getting this error on console. Can anyone please help me out (I am working on a Spring MVC project with GWT and maven)

SEVERE: Unable to process

Answer 1

com.ibm.icu.impl.data.LocaleElements_zh__PINYIN is a ill-formed class file inside the 2.6.1 icu4j jar file. Override or use the newer icu4j jar files, 55.0+.