diff --git a/model/infinispan/src/main/java/org/keycloak/models/cache/infinispan/entities/CachedRealm.java b/model/infinispan/src/main/java/org/keycloak/models/cache/infinispan/entities/CachedRealm.java
index df4097a1b9..5dbdb7f394 100755
--- a/model/infinispan/src/main/java/org/keycloak/models/cache/infinispan/entities/CachedRealm.java
+++ b/model/infinispan/src/main/java/org/keycloak/models/cache/infinispan/entities/CachedRealm.java
@@ -719,17 +719,17 @@ public class CachedRealm extends AbstractExtendableRevisioned {
 
     public Integer getAttribute(String name, Integer defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Integer.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Integer.valueOf(v) : defaultValue;
     }
 
     public Long getAttribute(String name, Long defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Long.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Long.valueOf(v) : defaultValue;
     }
 
     public Boolean getAttribute(String name, Boolean defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Boolean.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Boolean.valueOf(v) : defaultValue;
     }
 
     public Map<String, String> getAttributes() {
diff --git a/model/jpa/src/main/java/org/keycloak/models/jpa/RealmAdapter.java b/model/jpa/src/main/java/org/keycloak/models/jpa/RealmAdapter.java
index 25eeef56a8..59c5c533ad 100755
--- a/model/jpa/src/main/java/org/keycloak/models/jpa/RealmAdapter.java
+++ b/model/jpa/src/main/java/org/keycloak/models/jpa/RealmAdapter.java
@@ -589,6 +589,7 @@ public class RealmAdapter implements StorageProviderRealmModel, JpaModel<RealmEn
         getAttributes().entrySet().stream()
                 .filter(Objects::nonNull)
                 .filter(entry -> nonNull(entry.getValue()))
+                .filter(entry -> !entry.getValue().isEmpty())
                 .filter(entry -> entry.getKey().startsWith(RealmAttributes.ACTION_TOKEN_GENERATED_BY_USER_LIFESPAN + "."))
                 .forEach(entry -> userActionTokens.put(entry.getKey().substring(RealmAttributes.ACTION_TOKEN_GENERATED_BY_USER_LIFESPAN.length() + 1), Integer.valueOf(entry.getValue())));
 
diff --git a/server-spi/src/main/java/org/keycloak/models/RealmModel.java b/server-spi/src/main/java/org/keycloak/models/RealmModel.java
index 9d1e91a3f8..4dc7a57c86 100755
--- a/server-spi/src/main/java/org/keycloak/models/RealmModel.java
+++ b/server-spi/src/main/java/org/keycloak/models/RealmModel.java
@@ -119,15 +119,15 @@ public interface RealmModel extends RoleContainerModel {
     String getAttribute(String name);
     default Integer getAttribute(String name, Integer defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Integer.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Integer.valueOf(v) : defaultValue;
     }
     default Long getAttribute(String name, Long defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Long.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Long.valueOf(v) : defaultValue;
     }
     default Boolean getAttribute(String name, Boolean defaultValue) {
         String v = getAttribute(name);
-        return v != null ? Boolean.valueOf(v) : defaultValue;
+        return v != null && !v.isEmpty() ? Boolean.valueOf(v) : defaultValue;
     }
     Map<String, String> getAttributes();
 
diff --git a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/realm/RealmTest.java b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/realm/RealmTest.java
index 9d2159b770..0810cc1094 100755
--- a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/realm/RealmTest.java
+++ b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/realm/RealmTest.java
@@ -18,6 +18,9 @@
 package org.keycloak.testsuite.admin.realm;
 
 import com.google.common.collect.Sets;
+import jakarta.ws.rs.BadRequestException;
+import jakarta.ws.rs.NotFoundException;
+import jakarta.ws.rs.core.Response;
 import org.apache.commons.io.IOUtils;
 import org.hamcrest.CoreMatchers;
 import org.hamcrest.Matchers;
@@ -38,6 +41,10 @@ import org.keycloak.models.Constants;
 import org.keycloak.models.OAuth2DeviceConfig;
 import org.keycloak.models.OTPPolicy;
 import org.keycloak.models.ParConfig;
+import org.keycloak.models.RealmModel;
+import org.keycloak.models.RealmProvider;
+import org.keycloak.models.cache.CacheRealmProvider;
+import org.keycloak.models.jpa.entities.RealmAttributes;
 import org.keycloak.protocol.oidc.OIDCLoginProtocol;
 import org.keycloak.protocol.saml.SamlProtocol;
 import org.keycloak.representations.adapters.action.GlobalRequestResult;
@@ -70,9 +77,6 @@ import org.keycloak.testsuite.utils.tls.TLSUtils;
 import org.keycloak.userprofile.UserProfileProvider;
 import org.keycloak.util.JsonSerialization;
 
-import jakarta.ws.rs.BadRequestException;
-import jakarta.ws.rs.NotFoundException;
-import jakarta.ws.rs.core.Response;
 import java.io.IOException;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
@@ -997,4 +1001,43 @@ public class RealmTest extends AbstractAdminTest {
         // this used to return non-empty collection
         assertThat(adminClient.realm(realmName).components().query(null, UserProfileProvider.class.getName()), empty());
     }
+
+    @Test
+    public void testSetEmptyAttributeValues() {
+        String realmName = "testSetEmptyAttributeValues";
+        RealmRepresentation rep = new RealmRepresentation();
+        rep.setRealm(realmName);
+        rep.setAttributes(new HashMap<>());
+        rep.getAttributes().put("myboolean", "");
+        rep.getAttributes().put("mylong", "");
+        rep.getAttributes().put("myint", "");
+        rep.getAttributes().put(RealmAttributes.ACTION_TOKEN_GENERATED_BY_USER_LIFESPAN + ".something", "");
+
+        adminClient.realms().create(rep);
+
+        try {
+            adminClient.realm(realmName);
+
+            testingClient.server().run(session -> {
+                RealmModel realm = session.realms().getRealmByName(realmName);
+                Assert.assertTrue(realm instanceof org.keycloak.models.cache.infinispan.RealmAdapter);
+
+                Assert.assertNull(realm.getUserActionTokenLifespans().get("something"));
+                Assert.assertEquals(true, realm.getAttribute("myboolean", true));
+                Assert.assertEquals(Long.valueOf(123), realm.getAttribute("mylong", (long) 123));
+                Assert.assertEquals(Integer.valueOf(1234), realm.getAttribute("myint", 1234));
+
+                RealmProvider delegate = session.getProvider(CacheRealmProvider.class).getRealmDelegate();
+                RealmModel realm2 = delegate.getRealm(realm.getId());
+                Assert.assertTrue(realm2 instanceof org.keycloak.models.jpa.RealmAdapter);
+
+                Assert.assertNull(realm2.getUserActionTokenLifespans().get("something"));
+                Assert.assertEquals(true, realm2.getAttribute("myboolean", true));
+                Assert.assertEquals(Long.valueOf(123), realm2.getAttribute("mylong", (long) 123));
+                Assert.assertEquals(Integer.valueOf(1234), realm2.getAttribute("myint", 1234));
+            });
+        } finally {
+            adminClient.realm(realmName).remove();
+        }
+    }
 }