Add --enable-preview to criu nonPortable test in Valhalla build

closes #20627

Signed-off-by: Hang Shao <[email protected]>

test/functional/cmdLineTests/criu/criu_nonPortable_jdk_crac.xml

@@ -47,7 +47,7 @@
   </test>
 
   <test id="jdk.crac - jcmd request checkpoint via JDK.checkpoint">
-    <command>bash $SCRIPPATH$ $TEST_RESROOT$ $JAVA_COMMAND$ "$JVM_OPTIONS$ $EXPORTS$ $CRACCHECKPOINTTO$" $TESTNG$ $MAINCLASS_TESTJDKCRAC$ JDK.checkpoint 1 false false</command>
+    <command>bash $SCRIPPATH$ $TEST_RESROOT$ $JAVA_COMMAND$ "$ENABLE_PREVIEW$ $JVM_OPTIONS$ $EXPORTS$ $CRACCHECKPOINTTO$" $TESTNG$ $MAINCLASS_TESTJDKCRAC$ JDK.checkpoint 1 false false</command>
     <output type="success" caseSensitive="no" regex="no">JVM checkpoint requested</output>
     <output type="failure" caseSensitive="yes" regex="no">CRIU is not enabled</output>
     <output type="failure" caseSensitive="yes" regex="no">Operation not permitted</output>

test/functional/cmdLineTests/criu/playlist.xml

@@ -154,7 +154,7 @@
 		<command>
 			$(JAVA_COMMAND) $(CMDLINETESTER_JVM_OPTIONS) -Xdump \
 			-DSCRIPPATH=$(TEST_RESROOT)$(D)cracScript.sh -DTEST_RESROOT=$(TEST_RESROOT) \
-			-DJAVA_COMMAND=$(JAVA_COMMAND) -DJVM_OPTIONS=$(Q)$(JVM_OPTIONS)$(Q) -DTESTNG=$(TESTNG) \
+			-DJAVA_COMMAND=$(JAVA_COMMAND) -DENABLE_PREVIEW=$(ENABLE_PREVIEW) -DJVM_OPTIONS=$(Q)$(JVM_OPTIONS)$(Q) -DTESTNG=$(TESTNG) \
 			-jar $(CMDLINETESTER_JAR) -config $(Q)$(TEST_RESROOT)$(D)criu_nonPortable_jdk_crac.xml$(Q) \
 			-explainExcludes -xids all,$(PLATFORM),$(VARIATION) -nonZeroExitWhenError; \
 			$(TEST_STATUS)

test/functional/cmdLineTests/variables.mk

@@ -24,3 +24,10 @@
 ifneq ($(filter openj9 ibm, $(JDK_IMPL)),)
     CMDLINETESTER_JVM_OPTIONS=$(Q)-Xshareclasses:none$(Q)
 endif
+
+# Set ENABLE_PREVIEW to --enable-preview when testing a Valhalla build.
+ifeq ($(findstring VTSTANDARD, $(TEST_FLAG)), VTSTANDARD)
+ ENABLE_PREVIEW=--enable-preview
+else
+ ENABLE_PREVIEW=
+endif