fix

Author: pivovarit

.github/workflows/ci.yml

@@ -1,6 +1,6 @@
 name: CI
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:
@@ -21,4 +21,10 @@ jobs:
           cache: 'maven'
 
       - name: Build with Maven
-        run: mvn package
+        run: mvn -B --no-transfer-progress package
+
+      - name: Verify jar compatibility
+        uses: pivovarit/verify-jar-action@v1.2.0
+        with:
+          directory: 'java-jpms-jdk8/target'
+          java-version: '8'

java-jpms-jdk8/pom.xml

@@ -18,8 +18,7 @@
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
-                    <source>8</source>
-                    <target>8</target>
+                    <release>8</release>
                 </configuration>
             </plugin>
             <plugin>