diff --git a/maxkey-core/src/main/java/org/maxkey/domain/UserInfoAdjoint.java b/maxkey-core/src/main/java/org/maxkey/domain/UserInfoAdjoint.java
index 3e743e155..e926e6f6b 100644
--- a/maxkey-core/src/main/java/org/maxkey/domain/UserInfoAdjoint.java
+++ b/maxkey-core/src/main/java/org/maxkey/domain/UserInfoAdjoint.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright [2020] [MaxKey of copyright http://www.maxkey.top]
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+
 package org.maxkey.domain;
 
 import javax.persistence.Column;
diff --git a/maxkey-core/src/main/java/org/maxkey/pretty/impl/XMLHelper.java b/maxkey-core/src/main/java/org/maxkey/pretty/impl/XMLHelper.java
index d56f1f144..ac2da14d5 100644
--- a/maxkey-core/src/main/java/org/maxkey/pretty/impl/XMLHelper.java
+++ b/maxkey-core/src/main/java/org/maxkey/pretty/impl/XMLHelper.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright [2020] [MaxKey of copyright http://www.maxkey.top]
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+
 package org.maxkey.pretty.impl;
 
 import java.io.OutputStream;
diff --git a/maxkey-core/src/test/java/org/maxkey/util/XMLHelperTest.java b/maxkey-core/src/test/java/org/maxkey/util/XMLHelperTest.java
index 2aeb18174..eee2076de 100644
--- a/maxkey-core/src/test/java/org/maxkey/util/XMLHelperTest.java
+++ b/maxkey-core/src/test/java/org/maxkey/util/XMLHelperTest.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright [2020] [MaxKey of copyright http://www.maxkey.top]
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+
 package org.maxkey.util;
 
 import java.io.OutputStream;
diff --git a/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java b/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
index 7fbd4433c..5f3f7292b 100644
--- a/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
+++ b/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
@@ -1,3 +1,20 @@
+/*
+ * Copyright [2020] [MaxKey of copyright http://www.maxkey.top]
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+
 package org.maxkey.authz.saml20.provider.endpoint;
 
 import javax.servlet.http.HttpServletRequest;