TestNG运行报错An internal error occurred during launching

【异常】java: Internal error in the mapping processor: java.lang.NullPointerException

java.lang.NullPointerException: pattern

Error occurred during initialization of VM java/lang/NoClassDefFoundError: java/lang/Object

Environment env java.lang.NullPointerException

单元测试-java.lang.NullPointerException

【解决方案】使用mapStruct时，编译报错：java: Internal error in the mapping processor:java.lang.NullPointerException

java.lang.NullPointerException: null的错误

问题Error querying database. Cause: java.lang.NullPointerException解决方法

jackson.databind.JsonMappingException: (was java.lang.NullPointerException)