diff --git a/closed/src/java.base/share/classes/openj9/internal/security/RestrictedSecurity.java b/closed/src/java.base/share/classes/openj9/internal/security/RestrictedSecurity.java
index ade69839ebb..14984644ccb 100644
--- a/closed/src/java.base/share/classes/openj9/internal/security/RestrictedSecurity.java
+++ b/closed/src/java.base/share/classes/openj9/internal/security/RestrictedSecurity.java
@@ -39,7 +39,6 @@
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Iterator;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -995,8 +994,8 @@ private static final class ProfileParser {
         // The java.security properties.
         private final Properties securityProps;
 
-        private LinkedList<String> profileCheckPropertyNames;
-        private LinkedList<String> profileCheckProviderNames;
+        private final Set<String> profileCheckPropertyNames;
+        private final Set<String> profileCheckProviderNames;
 
         /**
          *
@@ -1020,8 +1019,8 @@ private ProfileParser(String id, Properties props) {
 
             parsedProfiles = new HashSet<>();
 
-            profileCheckPropertyNames = new LinkedList<>();
-            profileCheckProviderNames = new LinkedList<>();  
+            profileCheckPropertyNames = new HashSet<>();
+            profileCheckProviderNames = new HashSet<>();  
 
             // Initialize the properties.
             init(profileID);
@@ -1051,13 +1050,14 @@ private void init(String profileID) {
 
             loadProfileCheck(profileID);
 
-            String potentialExtendsProfileID = parseProperty(securityProps.getProperty(profileID + ".extends"));
+            String profileExtendsKeyword = profileID + ".extends";
+            String potentialExtendsProfileID = parseProperty(securityProps.getProperty(profileExtendsKeyword));
             if (potentialExtendsProfileID != null) { // If profile extends another profile.
                 if (debug != null) {
                     debug.println("\t'" + profileID + "' extends '" + potentialExtendsProfileID + "'.");
                 }
 
-                profileCheckPropertyNames.remove(profileID + ".extends");
+                profileCheckPropertyNames.remove(profileExtendsKeyword);
 
                 // Check if extended profile exists.
                 String extendsProfileID = null;
@@ -1730,10 +1730,12 @@ private void loadProfileCheck(String profileID) {
             Enumeration<?> pNames = securityProps.propertyNames();
             while (pNames.hasMoreElements()) {
                 String name = (String) pNames.nextElement();
-                if (name.startsWith(profileID + '.') && name.contains(".jce.provider.")) {
-                    profileCheckProviderNames.add(name);
-                } else if (name.startsWith(profileID + '.')) {
-                    profileCheckPropertyNames.add(name);
+                if (name.startsWith(profileID + '.')) {
+                    if (name.contains(".jce.provider.")) {
+                        profileCheckProviderNames.add(name);
+                    } else {
+                        profileCheckPropertyNames.add(name);
+                    }
                 }
             }
         }
@@ -1741,14 +1743,14 @@ private void loadProfileCheck(String profileID) {
         private void checkProfileCheck(String profileID) {
             if (!profileCheckProviderNames.isEmpty()) {
                 printStackTraceAndExit(
-                        "The order of providers in profile " + profileID
-                                + " (or its base profile) is incorrect.");
+                        "The order numbers of providers in profile " + profileID
+                                + " (or its base profile) are not consecutive.");
             }
             if (!profileCheckPropertyNames.isEmpty()) {
                 printStackTraceAndExit(
-                        "The property name: " + profileCheckPropertyNames.toString()
+                        "One or more property names: " + profileCheckPropertyNames.toString()
                                 + " in profile " + profileID
-                                + " may be misspelled.");
+                                + " are misspelled.");
             }
         }
     }