Control: tag -1 + patch
Here is a patch fixing this issue.
--- a/java/Makefile +++ b/java/Makefile @@ -37,7 +37,7 @@ # Java compiler flags # - source 1.4 is needed for Escjava # - Xlint may be compiler dependent -JFLAGS += -Xlint -g -source 1.4 +JFLAGS += -Xlint -g -source 1.7 # source files # java files of the library wrapper