8292716: Configure should check that jtreg is of the required version

Reviewed-by: erikj

make/autoconf/lib-tests.m4

@@ -27,6 +27,9 @@
 # Setup libraries and functionalities needed to test the JDK.
 ################################################################################
 
+# Minimum supported version
+JTREG_MINIMUM_VERSION=6.1
+
 ###############################################################################
 #
 # Setup and check for gtest framework source files
@@ -213,6 +216,22 @@ AC_DEFUN_ONCE([LIB_TESTS_SETUP_JTREG],
 
   UTIL_FIXUP_PATH(JT_HOME)
   AC_SUBST(JT_HOME)
+
+  # Verify jtreg version
+
+  AC_MSG_CHECKING([jtreg version number])
+  # jtreg -version looks like this: "jtreg 6.1+1-19"
+  # Extract actual version part ("6.1" in this case)
+  jtreg_version_full=`$JAVA -jar $JT_HOME/lib/jtreg.jar -version | $HEAD -n 1 | $CUT -d ' ' -f 2`
+  jtreg_version=${jtreg_version_full/%+*}
+  AC_MSG_RESULT([$jtreg_version])
+
+  # This is a simplified version of TOOLCHAIN_CHECK_COMPILER_VERSION
+  comparable_actual_version=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "$jtreg_version"`
+  comparable_minimum_version=`$AWK -F. '{ printf("%05d%05d%05d%05d\n", [$]1, [$]2, [$]3, [$]4) }' <<< "$JTREG_MINIMUM_VERSION"`
+  if test $comparable_actual_version -lt $comparable_minimum_version ; then
+    AC_MSG_ERROR([jtreg version is too old, at least version $JTREG_MINIMUM_VERSION is required])
+  fi
 ])
 
 # Setup the JIB dependency resolver