Java lang illegalargumentexception unsupported class file major version 69 July 8, 2019 16 32 64 128 (java.lang.illegalargumentexception unsupported class file major version 69) minecraft Spotbugs java lang illegalargumentexception unsupported class file major version 69 Caused by java lang illegalargumentexception unsupported class file major version 69
