diff --git a/adapters/oidc/as7-eap6/as7-adapter-spi/src/main/java/org/keycloak/adapters/jbossweb/JBossWebPrincipalFactory.java b/adapters/oidc/as7-eap6/as7-adapter-spi/src/main/java/org/keycloak/adapters/jbossweb/JBossWebPrincipalFactory.java
index d95d21a1d4..b7916f20de 100755
--- a/adapters/oidc/as7-eap6/as7-adapter-spi/src/main/java/org/keycloak/adapters/jbossweb/JBossWebPrincipalFactory.java
+++ b/adapters/oidc/as7-eap6/as7-adapter-spi/src/main/java/org/keycloak/adapters/jbossweb/JBossWebPrincipalFactory.java
@@ -163,7 +163,7 @@ public class JBossWebPrincipalFactory implements PrincipalFactory {
 
     static Constructor findJBossGenericPrincipalConstructor() {
         for (Constructor<?> c : JBossGenericPrincipal.class.getConstructors()) {
-            if (c.getParameterCount() == 9 &&
+            if (c.getParameterTypes().length == 9 &&
                     c.getParameterTypes()[0].equals(Realm.class) &&
                     c.getParameterTypes()[1].equals(String.class) &&
                     c.getParameterTypes()[3].equals(List.class) &&
diff --git a/common/src/main/java/org/keycloak/common/util/reflections/Types.java b/common/src/main/java/org/keycloak/common/util/reflections/Types.java
index 377f5102f4..adf8626ac3 100644
--- a/common/src/main/java/org/keycloak/common/util/reflections/Types.java
+++ b/common/src/main/java/org/keycloak/common/util/reflections/Types.java
@@ -163,9 +163,9 @@ public class Types {
         if (method == intfMethod) return true;
 
         if (!method.getName().equals(intfMethod.getName())) return false;
-        if (method.getParameterCount() != intfMethod.getParameterCount()) return false;
+        if (method.getParameterTypes().length != intfMethod.getParameterTypes().length) return false;
 
-        for (int i = 0; i < method.getParameterCount(); i++)
+        for (int i = 0; i < method.getParameterTypes().length; i++)
         {
             Class rootParam = method.getParameterTypes()[i];
             Class intfParam = intfMethod.getParameterTypes()[i];
diff --git a/federation/ldap/src/main/java/org/keycloak/storage/ldap/LDAPUtils.java b/federation/ldap/src/main/java/org/keycloak/storage/ldap/LDAPUtils.java
index 20335d1db9..9a1ce30aa6 100755
--- a/federation/ldap/src/main/java/org/keycloak/storage/ldap/LDAPUtils.java
+++ b/federation/ldap/src/main/java/org/keycloak/storage/ldap/LDAPUtils.java
@@ -323,7 +323,7 @@ public class LDAPUtils {
                     @Override
                     public boolean methodMatches(Method m) {
                         if ((m.getName().startsWith("get") || m.getName().startsWith("is"))
-                                && m.getParameterCount() > 0) {
+                                && m.getParameterTypes().length > 0) {
                             return false;
                         }
 
diff --git a/server-spi-private/src/main/java/org/keycloak/models/utils/reflection/MethodPropertyImpl.java b/server-spi-private/src/main/java/org/keycloak/models/utils/reflection/MethodPropertyImpl.java
index 679035c78e..befd024788 100755
--- a/server-spi-private/src/main/java/org/keycloak/models/utils/reflection/MethodPropertyImpl.java
+++ b/server-spi-private/src/main/java/org/keycloak/models/utils/reflection/MethodPropertyImpl.java
@@ -49,7 +49,7 @@ class MethodPropertyImpl<V> implements MethodProperty<V> {
             if (method.getReturnType() == Void.TYPE) {
                 throw new IllegalArgumentException(
                         "Invalid accessor method, must have return value if starts with 'get'. Method: " + method);
-            } else if (method.getParameterCount() > 0) {
+            } else if (method.getParameterTypes().length > 0) {
                 throw new IllegalArgumentException(
                         "Invalid accessor method, must have zero arguments if starts with 'get'. Method: " + method);
             }
@@ -59,7 +59,7 @@ class MethodPropertyImpl<V> implements MethodProperty<V> {
             if (method.getReturnType() != Void.TYPE) {
                 throw new IllegalArgumentException(
                         "Invalid accessor method, must not have return value if starts with 'set'. Method: " + method);
-            } else if (method.getParameterCount() != 1) {
+            } else if (method.getParameterTypes().length != 1) {
                 throw new IllegalArgumentException(
                         "Invalid accessor method, must have one argument if starts with 'set'. Method: " + method);
             }
@@ -151,7 +151,7 @@ class MethodPropertyImpl<V> implements MethodProperty<V> {
         Method[] methods = clazz.getMethods();
         for (Method method : methods) {
             String methodName = method.getName();
-            if (methodName.startsWith(SETTER_METHOD_PREFIX) && method.getParameterCount() == 1) {
+            if (methodName.startsWith(SETTER_METHOD_PREFIX) && method.getParameterTypes().length == 1) {
                 if (Introspector.decapitalize(methodName.substring(SETTER_METHOD_PREFIX_LENGTH)).equals(name)) {
                     return method;
                 }
@@ -163,7 +163,7 @@ class MethodPropertyImpl<V> implements MethodProperty<V> {
     private static Method getGetterMethod(Class<?> clazz, String name) {
         for (Method method : clazz.getDeclaredMethods()) {
             String methodName = method.getName();
-            if (method.getParameterCount() == 0) {
+            if (method.getParameterTypes().length == 0) {
                 if (methodName.startsWith(GETTER_METHOD_PREFIX)) {
                     if (Introspector.decapitalize(methodName.substring(GETTER_METHOD_PREFIX_LENGTH)).equals(name)) {
                         return method;
diff --git a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/PermissionsTest.java b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/PermissionsTest.java
index 9387b93962..71002a0888 100644
--- a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/PermissionsTest.java
+++ b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/PermissionsTest.java
@@ -1973,7 +1973,7 @@ public class PermissionsTest extends AbstractKeycloakTest {
         List<String> ignoreList = Arrays.asList(ignore);
 
         for (Method m : rep.getClass().getDeclaredMethods()) {
-            if (m.getParameterCount() == 0 && m.getName().startsWith("get") && !ignoreList.contains(m.getName())) {
+            if (m.getParameters().length == 0 && m.getName().startsWith("get") && !ignoreList.contains(m.getName())) {
                     try {
                     Object o = m.invoke(rep);
                     assertNull("Expected " + m.getName() + " to be null", o);
diff --git a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/migration/cluster/MultiVersionClusterTest.java b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/migration/cluster/MultiVersionClusterTest.java
index f3610f2459..c728d16809 100644
--- a/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/migration/cluster/MultiVersionClusterTest.java
+++ b/testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/migration/cluster/MultiVersionClusterTest.java
@@ -276,7 +276,7 @@ public class MultiVersionClusterTest extends AbstractClusterTest {
 
                             if (Arrays.asList(classForName.getDeclaredConstructors()).stream()
                                     .filter(c -> !c.isSynthetic())
-                                    .anyMatch(c -> c.getParameterCount() == 0 )) {
+                                    .anyMatch(c -> c.getParameterTypes().length == 0 )) {
                                 newInstance = Reflections.newInstance(classForName);
                             } else {
                                 Constructor<?> constructor = Arrays.asList(classForName.getDeclaredConstructors()).stream()