diff --git a/test/jdk/TEST.groups b/test/jdk/TEST.groups
index 34b073aec00..5e1aa60330f 100644
--- a/test/jdk/TEST.groups
+++ b/test/jdk/TEST.groups
@@ -584,7 +584,9 @@ jdk_core_manual_no_input = \
     javax/net/ssl/compatibility/BasicConnectTest.java \
     javax/net/ssl/compatibility/HrrTest.java \
     javax/net/ssl/compatibility/SniTest.java \
-    jdk/nio/zipfs/TestLocOffsetFromZip64EF.java
+    jdk/nio/zipfs/TestLocOffsetFromZip64EF.java \
+    java/util/ArrayList/Bug8146568.java \
+    java/util/Vector/Bug8148174.java
 
 jdk_core_manual_no_input_security = \
     com/sun/crypto/provider/Cipher/DES/PerformanceTest.java \
diff --git a/test/jdk/java/util/ArrayList/Bug8146568.java b/test/jdk/java/util/ArrayList/Bug8146568.java
index e20cba5bcbe..f0f072cff80 100644
--- a/test/jdk/java/util/ArrayList/Bug8146568.java
+++ b/test/jdk/java/util/ArrayList/Bug8146568.java
@@ -25,8 +25,8 @@
  * @test
  * @bug 8146568
  * @summary repro for: NegativeArraySizeException in ArrayList.grow(int)
- * @run main/othervm -Xmx17g Bug8146568
- * @ignore This test has huge memory requirements
+ * @run main/manual/othervm -Xmx17g Bug8146568
+ * @requires os.maxMemory>17G
  */
 
 public class Bug8146568 {
diff --git a/test/jdk/java/util/Vector/Bug8148174.java b/test/jdk/java/util/Vector/Bug8148174.java
index a987cd39155..8d84bf55d8b 100644
--- a/test/jdk/java/util/Vector/Bug8148174.java
+++ b/test/jdk/java/util/Vector/Bug8148174.java
@@ -25,8 +25,8 @@
  * @test
  * @bug 8148174
  * @summary repro for: NegativeArraySizeException in Vector.grow(int)
- * @run main/othervm -Xmx17g Bug8148174
- * @ignore This test has huge memory requirements
+ * @run main/manual/othervm -Xmx17g Bug8148174
+ * @requires os.maxMemory>17G
  */
 
 public class Bug8148174 {