--- jfreepdf-2.0/pom.xml	2022-05-17 01:27:50.328050850 +0200
+++ jfreepdf-2.0/pom.xml	2022-05-17 01:35:33.886489467 +0200
@@ -57,9 +57,30 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.8.1</version>
+                <executions>
+                    <execution>
+                        <id>default-compile</id>
+                        <configuration>
+                            <jdkToolchain>
+                                <version>9</version>
+                            </jdkToolchain>
+                            <release>9</release>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <id>base-compile</id>
+                        <goals>
+                            <goal>compile</goal>
+                        </goals>
+                        <configuration>
+                            <excludes>
+                                <exclude>module-info.java</exclude>
+                            </excludes>
+                        </configuration>
+                    </execution>
+                </executions>
                 <configuration>
-                    <source>11</source>
-                    <target>11</target>
+                    <release>8</release>
                     <compilerArgument>-Xlint:unchecked</compilerArgument>
                     <encoding>${project.build.sourceEncoding}</encoding>
                 </configuration>