Oracle JDK 11 required

Comparison/pom.xml

@@ -51,14 +51,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>8</source>
-                    <target>8</target>
-                </configuration>
-            </plugin>
             <!-- <plugin>
                 <groupId>org.openjfx</groupId>
                 <artifactId>javafx-maven-plugin</artifactId>

MeshModel/pom.xml

@@ -55,14 +55,6 @@
                     </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>8</source>
-                    <target>8</target>
-                </configuration>
-            </plugin>
         </plugins>
     </build>
     <repositories>

README.md

@@ -6,7 +6,7 @@ This project is being developed at Masaryk University, Brno, as collaborative pr
 
 ## Requirements
 
-*  Java SE 13+
+*  Oracle JDK 11 (JOGL 2.3 does not work with JDK >11 properly, at leat at Linux; should be working again in ongoing JOGL 2.4)
 *  [Maven](https://www.mkyong.com/maven/how-to-install-maven-in-windows/) for compilation
 *  IDE for development, e.g. NetBeans or IntelliJ IDEA
 
@@ -14,8 +14,8 @@ This project is being developed at Masaryk University, Brno, as collaborative pr
 
 * To build the application from scratch, run `mvn clean install`.
 * To run the application
-  * go to the `application` directory`,
-  * either execute a binary file located in the `target/fidentisanalyst/bin/` or run `mvn nbm:run-platform`
+  * run a binary file located in the `target/fidentisanalyst/bin/` 
+  * or go to the `application` directory and run `mvn nbm:run-platform`
 
 ## Developer's guide
 

pom.xml

@@ -49,13 +49,11 @@
                     </configuration>
                 </plugin>
                 <plugin>
-                    <!-- NetBeans 6.9+ requires JDK 6, starting NetBeans 7.4 source 1.7 is required -->
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>2.5.1</version>
+                    <version>3.8.1</version>
                     <configuration>
-                        <source>1.8</source>
-                        <target>1.8</target>
+                        <release>8</release>
                     </configuration>
                 </plugin>
                 <plugin>