4719 Common patchset for jdk1.7 support preparation

@@ -58,13 +58,12 @@
 
 lint:
 
 install: all $(PROTO_TEST_JAR)
 
-JFLAGS= -g -cp $(CLASSPATH) -d $(CLASSDIR) -deprecation
-JFLAGS += -target 1.5
-JFLAGS += -Xlint
+JFLAGS= -g -cp $(CLASSPATH) -d $(CLASSDIR)
+JFLAGS += -source 1.5 -target 1.6 -Xlint:all,-options,-rawtypes
 COMPILE.java=$(JAVAC) $(JFLAGS)
 
 $(TEST_JAR): $(SRCDIR)/*.java
         @mkdir -p $(CLASSDIR)
         $(COMPILE.java) $(SRCDIR)/*.java