Die IntelliJ-IDE will nicht ohne explizite Compiler-Version

diff --git a/pom.xml b/pom.xml
index 21466ec..2d1d063 100644 (file)
--- a/pom.xml
+++ b/pom.xml
@@ -101,6 +101,14 @@
           </execution>
         </executions>
       </plugin>
+        <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <configuration>
+                <source>9</source>
+                <target>9</target>
+            </configuration>
+        </plugin>
     </plugins>
   </build>