8056121: set the default release to 8u25 in the source tree for JPRT

Reviewed-by: mikael

make/Jprt.gmk

@@ -145,6 +145,9 @@ $(BUILD_DIR_ROOT)/.bridge2configureOptsLatest: FRC
           ifdef ALT_INSTALL_UPX_FILENAME
 	    @$(ECHO) " --with-upx-filename=$(call UnixPath,$(ALT_INSTALL_UPX_FILENAME)) " >> $@.tmp
           endif
+          ifdef ALT_BSDIFF_DIR
+	    @$(ECHO) " --with-bsdiff-dir=$(call UnixPath,$(ALT_BSDIFF_DIR)) " >> $@.tmp
+          endif
           ifdef ALT_CCSS_SIGNING_DIR
 	    @$(ECHO) " --with-ccss-signing=$(call UnixPath,$(ALT_CCSS_SIGNING_DIR)) " >> $@.tmp
           endif

make/jprt.properties

@@ -25,8 +25,9 @@
 
 # Properties for jprt
 
-# Locked down to jdk8
-jprt.tools.default.release=jdk8
+# The current release name
+my.jdk.update.version=25
+jprt.tools.default.release=jdk8u${my.jdk.update.version}
 
 # Unix toolkit to use for building on windows
 jprt.windows.jdk8.build.unix.toolkit=cygwin