diff --git a/app/pom.xml b/app/pom.xml
index 7258f0f0..fbba3eaa 100644
--- a/app/pom.xml
+++ b/app/pom.xml
@@ -38,17 +38,17 @@
         <dependency>
             <groupId>com.talkforgeai</groupId>
             <artifactId>backend</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
+            <version>0.1.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>com.talkforgeai</groupId>
             <artifactId>frontend</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
+            <version>0.1.0-SNAPSHOT</version>
         </dependency>
         <dependency>
             <groupId>com.talkforgeai</groupId>
             <artifactId>service</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
+            <version>0.1.0-SNAPSHOT</version>
         </dependency>
     </dependencies>
 
diff --git a/backend/pom.xml b/backend/pom.xml
index 18277afc..0dc1fbc9 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -32,7 +32,12 @@
         <dependency>
             <groupId>com.talkforgeai</groupId>
             <artifactId>service</artifactId>
-            <version>0.0.1-SNAPSHOT</version>
+            <version>0.1.0-SNAPSHOT</version>
+        </dependency>
+
+        <dependency>
+            <groupId>net.sourceforge.plantuml</groupId>
+            <artifactId>plantuml</artifactId>
         </dependency>
     </dependencies>
 
diff --git a/backend/src/main/java/com/talkforgeai/backend/util/StringUtils.java b/backend/src/main/java/com/talkforgeai/backend/util/StringUtils.java
index cc3d9862..1ef2f5f1 100644
--- a/backend/src/main/java/com/talkforgeai/backend/util/StringUtils.java
+++ b/backend/src/main/java/com/talkforgeai/backend/util/StringUtils.java
@@ -18,7 +18,7 @@
 
 public class StringUtils {
     public static String maxLengthString(String input, int maxLength) {
-        if (maxLength < 0) {
+        if (input == null || maxLength < 0) {
             return "";
         }
         return input.substring(0, Math.min(input.length(), maxLength));
diff --git a/backend/src/test/java/com/talkforgeai/backend/TalkforgeaiServerApplicationTests.java b/backend/src/test/java/com/talkforgeai/backend/TalkforgeaiServerApplicationTests.java
deleted file mode 100644
index 17de96e9..00000000
--- a/backend/src/test/java/com/talkforgeai/backend/TalkforgeaiServerApplicationTests.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (c) 2023 Jean Schmitz.
- *
- * 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 com.talkforgeai.backend;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-@SpringBootTest(classes = TestApplication.class)
-class TalkforgeaiServerApplicationTests {
-
-    @Test
-    void contextLoads() {
-    }
-
-}
diff --git a/backend/src/test/java/com/talkforgeai/backend/transformers/CodeBlockTransformerTest.java b/backend/src/test/java/com/talkforgeai/backend/transformers/CodeBlockTransformerTest.java
index ea9ff783..769d4ca7 100644
--- a/backend/src/test/java/com/talkforgeai/backend/transformers/CodeBlockTransformerTest.java
+++ b/backend/src/test/java/com/talkforgeai/backend/transformers/CodeBlockTransformerTest.java
@@ -47,14 +47,19 @@ public void codeBlockWithLangGetsTransformed() {
                 "\n" +
                 "<smiley>";
 
-        String expected = "Here's an example of how to use the \"Arrays.sort()\" method:\n" +
-                "\n" +
-                "<pre><code class=\"language-java\">" +
-                "int[] numbers = { 5, 3, 9, 1, 7 };\n" +
-                "Arrays.sort(numbers);\n" +
-                "</code></pre>\n" +
-                "\n" +
-                "<smiley>";
+        String expected = """
+                Here's an example of how to use the "Arrays.sort()" method:
+                                
+                <!-- start no-lb -->
+                <pre>
+                  <code class="language-java">int[] numbers = { 5, 3, 9, 1, 7 };
+                Arrays.sort(numbers);
+                </code>
+                </pre>
+                <!-- end no-lb -->
+                                
+                                
+                <smiley>""";
 
         CodeBlockTransformer transformer = new CodeBlockTransformer();
 
@@ -75,14 +80,19 @@ public void codeBlockWithoutLangGetsTransformed() {
                 "\n" +
                 "<smiley>";
 
-        String expected = "Here's an example of how to use the \"Arrays.sort()\" method:\n" +
-                "\n" +
-                "<pre><code >" +
-                "int[] numbers = { 5, 3, 9, 1, 7 };\n" +
-                "Arrays.sort(numbers);\n" +
-                "</code></pre>\n" +
-                "\n" +
-                "<smiley>";
+        String expected = """
+                Here's an example of how to use the "Arrays.sort()" method:
+                                
+                <!-- start no-lb -->
+                <pre>
+                  <code >int[] numbers = { 5, 3, 9, 1, 7 };
+                Arrays.sort(numbers);
+                </code>
+                </pre>
+                <!-- end no-lb -->
+                                
+                                
+                <smiley>""";
 
         CodeBlockTransformer transformer = new CodeBlockTransformer();