diff --git a/make/RunTestsPrebuilt.gmk b/make/RunTestsPrebuilt.gmk
index 363644ecf0a..ae14b1e5336 100644
--- a/make/RunTestsPrebuilt.gmk
+++ b/make/RunTestsPrebuilt.gmk
@@ -122,7 +122,7 @@ $(eval $(call SetupVariable,JT_HOME))
 $(eval $(call SetupVariable,JDK_IMAGE_DIR,$(OUTPUTDIR)/images/jdk))
 $(eval $(call SetupVariable,TEST_IMAGE_DIR,$(OUTPUTDIR)/images/test))
 $(eval $(call SetupVariable,SYMBOLS_IMAGE_DIR,$(OUTPUTDIR)/images/symbols,NO_CHECK))
-$(eval $(call SetupVariable,JTREG_JAVA,$(BOOT_JDK)/bin/java))
+$(eval $(call SetupVariable,JTREG_JDK,$(BOOT_JDK)))
 
 # Provide default values for tools that we need
 $(eval $(call SetupVariable,MAKE,make,NO_CHECK))
@@ -249,7 +249,7 @@ $(call CreateNewSpec, $(NEW_SPEC), \
     TOPDIR := $(TOPDIR), \
     OUTPUTDIR := $(OUTPUTDIR), \
     BOOT_JDK := $(BOOT_JDK), \
-    JTREG_JAVA := $(FIXPATH) $(JTREG_JAVA), \
+    JTREG_JDK := $(JTREG_JDK), \
     JT_HOME := $(JT_HOME), \
     JDK_IMAGE_DIR := $(JDK_IMAGE_DIR), \
     JCOV_IMAGE_DIR := $(JCOV_IMAGE_DIR), \
diff --git a/make/RunTestsPrebuiltSpec.gmk b/make/RunTestsPrebuiltSpec.gmk
index 585fd24fda3..7fcaf56ff52 100644
--- a/make/RunTestsPrebuiltSpec.gmk
+++ b/make/RunTestsPrebuiltSpec.gmk
@@ -124,6 +124,8 @@ JAR := $(FIXPATH) $(JAR_CMD)
 JLINK := $(FIXPATH) $(JLINK_CMD)
 JMOD := $(FIXPATH) $(JMOD_CMD)
 
+JTREG_JAVA := $(FIXPATH) $(JTREG_JDK)/bin/java $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
+
 BUILD_JAVA := $(JDK_IMAGE_DIR)/bin/JAVA
 ################################################################################
 # Some common tools. Assume most common name and no path.
diff --git a/make/autoconf/lib-tests.m4 b/make/autoconf/lib-tests.m4
index 5c03d433c38..be099e50a04 100644
--- a/make/autoconf/lib-tests.m4
+++ b/make/autoconf/lib-tests.m4
@@ -251,11 +251,10 @@ AC_DEFUN_ONCE([LIB_TESTS_SETUP_JTREG],
     AC_MSG_RESULT([no, using BOOT_JDK])
   fi
 
-  JTREG_JAVA="$JTREG_JDK/bin/java"
-  UTIL_FIXUP_PATH(JTREG_JAVA)
-  JTREG_JAVA="$FIXPATH $JTREG_JAVA"
-  AC_SUBST([JTREG_JAVA])
-
+  UTIL_FIXUP_PATH(JTREG_JDK)
+  AC_SUBST([JTREG_JDK])
+  # For use in the configure script
+  JTREG_JAVA="$FIXPATH $JTREG_JDK/bin/java"
 
   # Verify jtreg version
   if test "x$JT_HOME" != x; then
diff --git a/make/autoconf/spec.gmk.in b/make/autoconf/spec.gmk.in
index 1f2accf3a67..2b7a7b8d1af 100644
--- a/make/autoconf/spec.gmk.in
+++ b/make/autoconf/spec.gmk.in
@@ -666,8 +666,6 @@ JAVA_FLAGS_SMALL:=@JAVA_FLAGS_SMALL@
 BUILDJDK_JAVA_FLAGS_SMALL:=@BUILDJDK_JAVA_FLAGS_SMALL@
 JAVA_TOOL_FLAGS_SMALL:=@JAVA_TOOL_FLAGS_SMALL@
 
-JTREG_JAVA:=@JTREG_JAVA@
-
 # The *_CMD variables are defined separately to be easily overridden in bootcycle-spec.gmk
 # for bootcycle-images build. Make sure to keep them in sync. Do not use the *_CMD
 # versions of the variables directly.
@@ -687,6 +685,9 @@ JAR = $(JAR_CMD)
 JLINK = $(JLINK_CMD)
 JMOD = $(JMOD_CMD)
 
+JTREG_JDK := @JTREG_JDK@
+JTREG_JAVA = @FIXPATH@ $(JTREG_JDK)/bin/java $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)
+
 BUILD_JAVA_FLAGS := @BOOTCYCLE_JVM_ARGS_BIG@
 BUILD_JAVA=@FIXPATH@ $(BUILD_JDK)/bin/java $(BUILD_JAVA_FLAGS)
 BUILD_JAVAC=@FIXPATH@ $(BUILD_JDK)/bin/javac