diff --git a/src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java b/src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java
index b4cc275779f..901fe859b7c 100644
--- a/src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java
+++ b/src/jdk.crypto.ec/share/classes/sun/security/ec/ECPublicKeyImpl.java
@@ -140,14 +140,6 @@ protected Object writeReplace() throws java.io.ObjectStreamException {
                         getEncoded());
     }
 
-    /**
-     * Returns true if this key's EC field is an instance of ECFieldF2m.
-     * @return true if the field is an instance of ECFieldF2m, false otherwise
-     */
-    boolean isECFieldF2m() {
-        return this.params.getCurve().getField() instanceof ECFieldF2m;
-    }
-
     /**
      * Returns the native EC public key context pointer.
      * @return the native EC public key context pointer or -1 on error