filefilter function in test-patch flink personality is never called

 28 function fliblib_filefilter
 29 {
 30   local filename=$1
 31 
 32   if [[ ${filename} =~ \.java$
 33     || ${filename} =~ \.scala$
 34     || ${filename} =~ pom.xml$ ]]; then
 35     add_test flinklib
 36   fi
 37 }