Control: tags -1 + patch This is easily fixed by modifying the javac arguments in debian/rules:
--- a/debian/rules
+++ b/debian/rules
@@ -13,7 +13,7 @@ build-arch: build-stamp
build-indep: build-stamp
-JAVA_ARGS=-source 1.5 -target 1.5
+JAVA_ARGS=-source 1.8 -target 1.8 -encoding ISO-8859-1
build-stamp:
dh_testdir

