Made it work for ui and rest, not spring boot, yet.

todolist/core/src/main/java/todolist/json/TodoPersistence.java

@@ -2,8 +2,6 @@ package todolist.json;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.module.SimpleModule;
-
-
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;
@@ -12,8 +10,6 @@ import java.io.Writer;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-
-
 import todolist.core.TodoModel;
 import todolist.json.internal.TodoModule;
 

todolist/fxui/pom.xml

@@ -179,6 +179,9 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <configuration>
                     <skipTests>${skipUiTests}</skipTests>
+                    <argLine>
+                    --add-opens todolist.ui/todolist.ui=ALL-UNNAMED --add-exports javafx.graphics/com.sun.javafx.application=ALL-UNNAMED
+                    </argLine>
                 </configuration>
             </plugin>
             <plugin>

todolist/pom.xml

@@ -162,6 +162,8 @@
         <module>fxui</module>
         <module>rest</module>
         <module>integrationtests</module>
+        <!--
         <module>springboot/restserver</module>
+        -->
     </modules>
 </project>

todolist/rest/pom.xml

@@ -140,26 +140,6 @@
             <version>1.1.1</version>
             <scope>runtime</scope>
         </dependency>
-        <!-- 
-        <dependency>
-            <groupId>javax.xml.bind</groupId>
-            <artifactId>jaxb-api</artifactId>
-            <version>2.3.0</version>
-            <scope>runtime</scope>
-        </dependency>
-            <dependency>
-                <groupId>com.sun.xml.bind</groupId>
-                <artifactId>jaxb-core</artifactId>
-                <version>2.3.0</version>
-                <scope>runtime</scope>
-            </dependency>
-            <dependency>
-                <groupId>com.sun.xml.bind</groupId>
-                <artifactId>jaxb-impl</artifactId>
-                <version>2.3.0</version>
-                <scope>runtime</scope>
-            </dependency>
-        -->
     </dependencies>
 
     <build>

todolist/rest/src/main/java/module-info.java

@@ -9,4 +9,6 @@ module todolist.rest {
     requires org.slf4j;
 
     requires todolist.core;
+
+    opens todolist.restapi to jersey.server;
 }
\ No newline at end of file