diff --git a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/TClass.java b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/TClass.java
index c661844fa..7376eb2ef 100644
--- a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/TClass.java
+++ b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/TClass.java
@@ -73,6 +73,10 @@ public String getCanonicalName() {
         return getName();
     }
 
+    public boolean isMemberClass() {
+        return false;
+    }
+
     public boolean isEnum() {
         return false;
     }
@@ -281,4 +285,6 @@ public <T> T cast(final Object obj) {
         //noinspection unchecked
         return (T) obj;
     }
+
+
 }
\ No newline at end of file
diff --git a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TConstructor.java b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TConstructor.java
index 78cc23d4b..ad362864b 100644
--- a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TConstructor.java
+++ b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TConstructor.java
@@ -32,4 +32,11 @@ public TConstructor(final Class clz, final Class[] signature) {
     public Object newInstance(final Object[] constructorArgs) {
         return VM.newInstanceFromDefaultConstructor(clz);
     }
+
+    public void setAccessible(final boolean a){
+    }
+
+    public boolean isAccessible() {
+        return true;
+    }
 }
diff --git a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TField.java b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TField.java
index 246804842..907525cf8 100644
--- a/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TField.java
+++ b/classlib/java.base/src/main/java/de/mirkosertic/bytecoder/classlib/java/lang/reflect/TField.java
@@ -20,6 +20,7 @@
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Modifier;
+import java.lang.reflect.Type;
 
 @SubstitutesInClass(completeReplace = true)
 public class TField {
@@ -74,4 +75,15 @@ public void set(final Object o, final Object value) {
     public Class getType() {
         return type;
     }
+
+    public boolean isAccessible() {
+        return true;
+    }
+
+    public void setAccessible(final boolean a){
+    }
+
+    public Type getGenericType() {
+        return null;
+    }
 }