diff --git a/pom.xml b/pom.xml
index a203faf..91ee031 100644
--- a/pom.xml
+++ b/pom.xml
@@ -167,6 +167,7 @@
                 <exclude>**/main/resources/META-INF/resources/frontend/prism.js</exclude>
                 <exclude>**/main/resources/META-INF/resources/frontend/prism.css</exclude>
                 <exclude>**/test/resources/**</exclude>
+                <exclude>**/main/dev-bundle/**</exclude>
               </excludes>
           </configuration>
         </plugin>
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/DemoHelperViewer.java b/src/main/java/com/flowingcode/vaadin/addons/demo/DemoHelperViewer.java
index 3d0e733..d0a5333 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/DemoHelperViewer.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/DemoHelperViewer.java
@@ -2,7 +2,7 @@
  * #%L
  * Commons Demo
  * %%
- * Copyright (C) 2020 - 2023 Flowing Code
+ * Copyright (C) 2020 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/DemoSources.java b/src/main/java/com/flowingcode/vaadin/addons/demo/DemoSources.java
index 083c46f..741aeb4 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/DemoSources.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/DemoSources.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 import java.lang.annotation.ElementType;
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/MultiSourceCodeViewer.java b/src/main/java/com/flowingcode/vaadin/addons/demo/MultiSourceCodeViewer.java
index b06e68a..0014d1d 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/MultiSourceCodeViewer.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/MultiSourceCodeViewer.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 import com.vaadin.flow.component.ComponentUtil;
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeTab.java b/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeTab.java
index 2447cf2..31f7632 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeTab.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeTab.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 import lombok.AccessLevel;
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeViewer.java b/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeViewer.java
index 300cceb..89a40f1 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeViewer.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/SourceCodeViewer.java
@@ -2,7 +2,7 @@
  * #%L
  * Commons Demo
  * %%
- * Copyright (C) 2020 - 2023 Flowing Code
+ * Copyright (C) 2020 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/com/flowingcode/vaadin/addons/demo/SourcePosition.java b/src/main/java/com/flowingcode/vaadin/addons/demo/SourcePosition.java
index 674aa7c..fa96948 100644
--- a/src/main/java/com/flowingcode/vaadin/addons/demo/SourcePosition.java
+++ b/src/main/java/com/flowingcode/vaadin/addons/demo/SourcePosition.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 public enum SourcePosition {
diff --git a/src/main/resources/META-INF/resources/frontend/code-viewer.ts b/src/main/resources/META-INF/resources/frontend/code-viewer.ts
index 44f1a72..709cc93 100644
--- a/src/main/resources/META-INF/resources/frontend/code-viewer.ts
+++ b/src/main/resources/META-INF/resources/frontend/code-viewer.ts
@@ -250,7 +250,7 @@ pre[class*="language-"] {
       let end = text.indexOf('*/');
       if (end<0) break;
       
-      let pos = text.indexOf('#%L');
+      let pos = text.indexOf('#'+'%L');
       if (pos<0 || end<pos) break;
       
       let license = text.substring(pos+3,end).split('%%');
diff --git a/src/test/java/com/flowingcode/vaadin/addons/demo/AdHocSource.java b/src/test/java/com/flowingcode/vaadin/addons/demo/AdHocSource.java
index a462045..b4d4547 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/demo/AdHocSource.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/demo/AdHocSource.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 import com.vaadin.flow.component.html.Div;
diff --git a/src/test/java/com/flowingcode/vaadin/addons/demo/AdditionalSources.java b/src/test/java/com/flowingcode/vaadin/addons/demo/AdditionalSources.java
index bf52132..2f80bdd 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/demo/AdditionalSources.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/demo/AdditionalSources.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo;
 
 public class AdditionalSources {
diff --git a/src/test/java/com/flowingcode/vaadin/addons/demo/MultiSourceDemo.java b/src/test/java/com/flowingcode/vaadin/addons/demo/MultiSourceDemo.java
index e7ceba9..fcfa8ee 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/demo/MultiSourceDemo.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/demo/MultiSourceDemo.java
@@ -1,7 +1,7 @@
 /*-
  * #%L
  * %%
- * Copyright (C) 2020 - 2023 Flowing Code
+ * Copyright (C) 2020 - 2024 Flowing Code
  * %%
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/test/java/com/flowingcode/vaadin/addons/demo/it/ConditionalSourceCodeViewerIT.java b/src/test/java/com/flowingcode/vaadin/addons/demo/it/ConditionalSourceCodeViewerIT.java
index 821bdea..6651fd8 100644
--- a/src/test/java/com/flowingcode/vaadin/addons/demo/it/ConditionalSourceCodeViewerIT.java
+++ b/src/test/java/com/flowingcode/vaadin/addons/demo/it/ConditionalSourceCodeViewerIT.java
@@ -1,3 +1,22 @@
+/*-
+ * #%L
+ * Commons Demo
+ * %%
+ * Copyright (C) 2020 - 2024 Flowing Code
+ * %%
+ * 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.
+ * #L%
+ */
 package com.flowingcode.vaadin.addons.demo.it;
 
 import static org.junit.Assert.assertEquals;