diff --git a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/adapter/AbstractAdapterTest.java b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/adapter/AbstractAdapterTest.java
index 11c17f0cd8..3fffb24768 100644
--- a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/adapter/AbstractAdapterTest.java
+++ b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/adapter/AbstractAdapterTest.java
@@ -95,28 +95,32 @@ public abstract class AbstractAdapterTest extends AbstractAuthTest {
     }
 
     protected void modifyClientWebOrigins(RealmRepresentation realm, String regex, String replacement) {
-        for (ClientRepresentation client : realm.getClients()) {
-            List<String> webOrigins = client.getWebOrigins();
-            if (webOrigins != null) {
-                List<String> newWebOrigins = new ArrayList<>();
-                for (String uri : webOrigins) {
-                    newWebOrigins.add(uri.replaceAll(regex, replacement));
+        if (realm.getClients() != null) {
+            for (ClientRepresentation client : realm.getClients()) {
+                List<String> webOrigins = client.getWebOrigins();
+                if (webOrigins != null) {
+                    List<String> newWebOrigins = new ArrayList<>();
+                    for (String uri : webOrigins) {
+                        newWebOrigins.add(uri.replaceAll(regex, replacement));
+                    }
+                    client.setWebOrigins(newWebOrigins);
                 }
-                client.setWebOrigins(newWebOrigins);
             }
         }
     }
 
     protected void modifySamlMasterURLs(RealmRepresentation realm, String regex, String replacement) {
-        for (ClientRepresentation client : realm.getClients()) {
-            if (client.getProtocol() != null && client.getProtocol().equals("saml")) {
-                log.info("Modifying master URL of SAML client: " + client.getClientId());
-                String masterUrl = client.getAdminUrl();
-                if (masterUrl == null) {
-                    masterUrl = client.getBaseUrl();
+        if (realm.getClients() != null) {
+            for (ClientRepresentation client : realm.getClients()) {
+                if (client.getProtocol() != null && client.getProtocol().equals("saml")) {
+                    log.info("Modifying master URL of SAML client: " + client.getClientId());
+                    String masterUrl = client.getAdminUrl();
+                    if (masterUrl == null) {
+                        masterUrl = client.getBaseUrl();
+                    }
+                    masterUrl = masterUrl.replaceFirst(regex, replacement);
+                    client.setAdminUrl(masterUrl);
                 }
-                masterUrl = masterUrl.replaceFirst(regex, replacement);
-                client.setAdminUrl(masterUrl);
             }
         }
     }
diff --git a/testsuite/integration-arquillian/tests/base/src/test/resources/adapter-test/demorealm.json b/testsuite/integration-arquillian/tests/base/src/test/resources/adapter-test/demorealm.json
index 70dc85aae4..1c3ca7523a 100644
--- a/testsuite/integration-arquillian/tests/base/src/test/resources/adapter-test/demorealm.json
+++ b/testsuite/integration-arquillian/tests/base/src/test/resources/adapter-test/demorealm.json
@@ -121,19 +121,19 @@
             "name": "customer-portal",
             "enabled": true,
             "directAccessGrantsEnabled": true,
-            "adminUrl": "http://localhost:8081/customer-portal",
-            "baseUrl": "http://localhost:8081/customer-portal",
+            "adminUrl": "/customer-portal",
+            "baseUrl": "/customer-portal",
             "redirectUris": [
-                "http://localhost:8081/customer-portal/*"
+                "/customer-portal/*"
             ],
             "secret": "password"
         },
         {
             "name": "customer-cookie-portal",
             "enabled": true,
-            "baseUrl": "http://localhost:8081/customer-cookie-portal",
+            "baseUrl": "/customer-cookie-portal",
             "redirectUris": [
-                "http://localhost:8081/customer-cookie-portal/*"
+                "/customer-cookie-portal/*"
             ],
             "secret": "password"
         },
@@ -141,10 +141,10 @@
             "name": "customer-portal-js",
             "enabled": true,
             "publicClient": true,
-            "adminUrl": "http://localhost:8081/customer-portal-js",
-            "baseUrl": "http://localhost:8081/customer-portal-js",
+            "adminUrl": "/customer-portal-js",
+            "baseUrl": "/customer-portal-js",
             "redirectUris": [
-                "http://localhost:8080/customer-portal-js/*"
+                "/customer-portal-js/*"
             ]
         },
         {
@@ -159,21 +159,21 @@
         {
             "name": "product-portal",
             "enabled": true,
-            "adminUrl": "http://localhost:8081/product-portal",
-            "baseUrl": "http://localhost:8081/product-portal",
+            "adminUrl": "/product-portal",
+            "baseUrl": "/product-portal",
             "redirectUris": [
-                "http://localhost:8081/product-portal/*"
+                "/product-portal/*"
             ],
             "secret": "password"
         },
         {
             "name": "secure-portal",
             "enabled": true,
-            "adminUrl": "http://localhost:8081/secure-portal",
-            "baseUrl": "http://localhost:8081/secure-portal",
+            "adminUrl": "/secure-portal",
+            "baseUrl": "/secure-portal",
             "clientAuthenticatorType": "client-jwt",
             "redirectUris": [
-                "http://localhost:8081/secure-portal/*"
+                "/secure-portal/*"
             ],
             "attributes": {
                 "jwt.credential.certificate": "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"
@@ -182,20 +182,20 @@
         {
             "name": "session-portal",
             "enabled": true,
-            "adminUrl": "http://localhost:8081/session-portal",
-            "baseUrl": "http://localhost:8081/session-portal",
+            "adminUrl": "/session-portal",
+            "baseUrl": "/session-portal",
             "redirectUris": [
-                "http://localhost:8081/session-portal/*"
+                "/session-portal/*"
             ],
             "secret": "password"
         },
         {
             "name": "input-portal",
             "enabled": true,
-            "adminUrl": "http://localhost:8081/input-portal",
-            "baseUrl": "http://localhost:8081/input-portal",
+            "adminUrl": "/input-portal",
+            "baseUrl": "/input-portal",
             "redirectUris": [
-                "http://localhost:8081/input-portal/*"
+                "/input-portal/*"
             ],
             "secret": "password"
         }
@@ -205,8 +205,8 @@
             "name": "third-party",
             "enabled": true,
             "redirectUris": [
-                "http://localhost:8081/oauth-client/*",
-                "http://localhost:8081/oauth-client-cdi/*"
+                "/oauth-client/*",
+                "/oauth-client-cdi/*"
             ],
             "secret": "password"
         }