Before: runtime ale_linters/java/pmd.vim After: call ale#linter#Reset() Execute(The pmd handler should parse lines correctly): AssertEqual \ [ \ { \ 'lnum': 18, \ 'text': 'Each class should declare at least one constructor', \ 'code': 'Code Style - AtLeastOneConstructor', \ 'type': 'W', \ }, \ { \ 'lnum': 36, \ 'text': 'Local variable ''node'' could be declared final', \ 'code': 'Code Style - LocalVariableCouldBeFinal', \ 'type': 'W', \ }, \ ], \ ale_linters#java#pmd#Handle(666, [ \ '"Problem","Package","File","Priority","Line","Description","Rule set","Rule"', \ '"1","rsb.performance.test.ros","/home/languitar/src/rsb-performance-test-api-ros/src/main/java/rsb/performance/test/ros/NodeHolder.java","3","18","Each class should declare at least one constructor","Code Style","AtLeastOneConstructor"', \ '"2","rsb.performance.test.ros","/home/languitar/src/rsb-performance-test-api-ros/src/main/java/rsb/performance/test/ros/NodeHolder.java","1","36","Local variable ''node'' could be declared final","Code Style","LocalVariableCouldBeFinal"' \ ])