4719 Common patchset for jdk1.7 support preparation

*** 53,63 ****
  
  # Controlled CLASSPATH for making
  SLPCLASSPATH=$(CLASSES):$(SLPJAVASRC)
  
  # javac flags
! JFLAGS= -O -d $(CLASSES) -sourcepath $(SLPCLASSPATH) -deprecation
  
  # The default make rule for Java files
  COMPILE.java=$(JAVAC) $(JFLAGS)
  
  $(CLASSES)/$(PKGPATH)/%.class:  $(SLPJAVASRC)/$(PKGPATH)/%.java
--- 53,64 ----
  
  # Controlled CLASSPATH for making
  SLPCLASSPATH=$(CLASSES):$(SLPJAVASRC)
  
  # javac flags
! JFLAGS= -O -d $(CLASSES) -sourcepath $(SLPCLASSPATH)
! JFLAGS += -source 1.6 -target 1.6 -Xlint:deprecation,-options
  
  # The default make rule for Java files
  COMPILE.java=$(JAVAC) $(JFLAGS)
  
  $(CLASSES)/$(PKGPATH)/%.class:  $(SLPJAVASRC)/$(PKGPATH)/%.java