(class file version 59.0) July 8, 2019 16 32 64 128 Class file version 59.0 Class file has wrong version 59.0 should be 52.0 Java class file version 59.0 Class file has wrong version 59.0 should be 55.0 (class file version 60.0) (class file version 53.0) (class file version 57.0) (class file version 55.0)