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

8292763: JDK-8292716 breaks configure without jtreg

Reviewed-by: phh, shade
Backport-of: 9288072655a689c06a03f85c976bbd2f0744d3d5

make/autoconf/toolchain.m4

@@ -61,6 +61,9 @@ TOOLCHAIN_MINIMUM_VERSION_xlc=""
 # Minimum supported linker versions, empty means unspecified
 TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.18"
 
+# Minimum supported version
+JTREG_MINIMUM_VERSION=6.1
+
 # Prepare the system so that TOOLCHAIN_CHECK_COMPILER_VERSION can be called.
 # Must have CC_VERSION_NUMBER and CXX_VERSION_NUMBER.
 # $1 - optional variable prefix for compiler and version variables (BUILD_)
@@ -1144,6 +1147,24 @@ AC_DEFUN_ONCE([TOOLCHAIN_SETUP_JTREG],
   UTIL_FIXUP_EXECUTABLE(JTREGEXE)
   UTIL_FIXUP_PATH(JT_HOME)
   AC_SUBST(JT_HOME)
+
+  # Verify jtreg version
+  if test "x$JT_HOME" != x; then
+    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
+  fi
+
   AC_SUBST(JTREGEXE)
 ])