diff --git a/src/hotspot/share/gc/shared/gc_globals.hpp b/src/hotspot/share/gc/shared/gc_globals.hpp
index 25e581cae67..b41bff01e29 100644
--- a/src/hotspot/share/gc/shared/gc_globals.hpp
+++ b/src/hotspot/share/gc/shared/gc_globals.hpp
@@ -168,11 +168,6 @@
           "A System.gc() request invokes a concurrent collection; "         \
           "(effective only when using concurrent collectors)")              \
                                                                             \
-  product(uint, GCLockerEdenExpansionPercent, 5,                            \
-          "How much the GC can expand the eden by while the GC locker "     \
-          "is active (as a percentage)")                                    \
-          range(0, 100)                                                     \
-                                                                            \
   product(uintx, GCLockerRetryAllocationCount, 2, DIAGNOSTIC,               \
           "Number of times to retry allocations when "                      \
           "blocked by the GC locker")                                       \
diff --git a/src/hotspot/share/runtime/arguments.cpp b/src/hotspot/share/runtime/arguments.cpp
index 7b593b8c093..8f3b9aa11c7 100644
--- a/src/hotspot/share/runtime/arguments.cpp
+++ b/src/hotspot/share/runtime/arguments.cpp
@@ -527,6 +527,7 @@ static SpecialFlag const special_jvm_flags[] = {
   { "InitialRAMFraction",           JDK_Version::jdk(10),  JDK_Version::jdk(23), JDK_Version::jdk(24) },
   { "DefaultMaxRAMFraction",        JDK_Version::jdk(8),  JDK_Version::jdk(23), JDK_Version::jdk(24) },
   { "TLABStats",                    JDK_Version::jdk(12), JDK_Version::jdk(23), JDK_Version::jdk(24) },
+  { "GCLockerEdenExpansionPercent", JDK_Version::undefined(), JDK_Version::jdk(23), JDK_Version::jdk(24) },
 #ifdef ASSERT
   { "DummyObsoleteTestFlag",        JDK_Version::undefined(), JDK_Version::jdk(18), JDK_Version::undefined() },
 #endif
diff --git a/test/hotspot/jtreg/gc/arguments/TestNewRatioFlag.java b/test/hotspot/jtreg/gc/arguments/TestNewRatioFlag.java
index 6eff65f3fa8..adb0ae26a9f 100644
--- a/test/hotspot/jtreg/gc/arguments/TestNewRatioFlag.java
+++ b/test/hotspot/jtreg/gc/arguments/TestNewRatioFlag.java
@@ -73,7 +73,6 @@ public class TestNewRatioFlag {
                 "-Xbootclasspath/a:.",
                 "-XX:+UnlockDiagnosticVMOptions",
                 "-XX:+WhiteBoxAPI",
-                "-XX:GCLockerEdenExpansionPercent=0",
                 "-Xmx" + HEAP_SIZE,
                 "-Xms" + HEAP_SIZE,
                 "-XX:NewRatio=" + ratio,
diff --git a/test/hotspot/jtreg/gc/arguments/TestNewSizeFlags.java b/test/hotspot/jtreg/gc/arguments/TestNewSizeFlags.java
index 8fc522f8be8..460160f045c 100644
--- a/test/hotspot/jtreg/gc/arguments/TestNewSizeFlags.java
+++ b/test/hotspot/jtreg/gc/arguments/TestNewSizeFlags.java
@@ -157,7 +157,6 @@ public class TestNewSizeFlags {
                 (maxNewSize >= 0 ? "-XX:MaxNewSize=" + maxNewSize : ""),
                 "-Xmx" + maxHeapSize,
                 "-Xms" + heapSize,
-                "-XX:GCLockerEdenExpansionPercent=0",
                 "-XX:-UseLargePages",
                 NewSizeVerifier.class.getName(),
                 Long.toString(expectedNewSize),
diff --git a/test/hotspot/jtreg/gc/arguments/TestSurvivorRatioFlag.java b/test/hotspot/jtreg/gc/arguments/TestSurvivorRatioFlag.java
index a593970e6f7..c1e58e071a4 100644
--- a/test/hotspot/jtreg/gc/arguments/TestSurvivorRatioFlag.java
+++ b/test/hotspot/jtreg/gc/arguments/TestSurvivorRatioFlag.java
@@ -77,7 +77,6 @@ public class TestSurvivorRatioFlag {
                 "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
                 "-XX:+UnlockDiagnosticVMOptions",
                 "-XX:+WhiteBoxAPI",
-                "-XX:GCLockerEdenExpansionPercent=0",
                 "-XX:MaxNewSize=" + NEW_SIZE,
                 "-XX:NewSize=" + NEW_SIZE,
                 "-Xmx" + HEAP_SIZE,