diff --git a/Dockerfile b/Dockerfile
index 5099a0a..1b0f89b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,14 @@
-ARG MAVEN_BUILDER=3-openjdk-17-slim
+#ARG MAVEN_BUILDER=3-openjdk-17-slim
 
 #ARG SONARQUBE_VERSION=9.9.0-community
 #ARG SONARQUBE_VERSION=24.12.0.100206-community
 #ARG SONARQUBE_VERSION=25.1.0.102122-community
 #ARG SONARQUBE_VERSION=25.2.0.102705-community
 #ARG SONARQUBE_VERSION=25.3.0.104237-community
-ARG SONARQUBE_VERSION=25.9.0.112764-community
+#ARG SONARQUBE_VERSION=25.9.0.112764-community
+
+ARG MAVEN_BUILDER=3-openjdk-11-slim
+ARG SONARQUBE_VERSION=9.9.8-community
 
 FROM maven:${MAVEN_BUILDER} AS builder
 
diff --git a/pom.xml b/pom.xml
index 41f7bd4..a75bf3d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
 
     <properties>
 
-        <java.version>17</java.version>
+        <java.version>11</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <!-- to prevent message: system modules path not set in conjunction with -source 11 -->
@@ -60,6 +60,9 @@
         <sonar.plugin.api.version>13.0.0.3026</sonar.plugin.api.version>
 
         <!-- Version of `sonar-java-plugin` that `creedengo-java-plugin` depends on  -->
+
+        <!-- max version that all is OK with JDK 11 -->
+        <sonarjava.version>7.30.0.34429</sonarjava.version>
         <!-- LAST version compatible with SonarQube 9.9.0 AND 25.9.0 -->
         <sonarjava.version>8.9.3.40165</sonarjava.version>
         <!-- LAST version compatible with SonarQube 25.9.0 but NOT with 9.9.0 -->
@@ -79,7 +82,7 @@
 
         <!-- Version of `sonarqube` used by integration tests (you can override this value to perform matrix compatibility tests) -->
 <!--        <test-it.sonarqube.version>9.9.0.65466</test-it.sonarqube.version>-->
-<!--        <test-it.sonarqube.version>9.9.8.100196</test-it.sonarqube.version>-->
+        <test-it.sonarqube.version>9.9.8.100196</test-it.sonarqube.version>
 <!--        <test-it.sonarqube.version>10.1.0.73245</test-it.sonarqube.version>-->
 <!--        <test-it.sonarqube.version>10.1.0.73491</test-it.sonarqube.version>-->
 <!--        <test-it.sonarqube.version>10.2.0.77647</test-it.sonarqube.version>-->
@@ -90,7 +93,7 @@
 <!--        <test-it.sonarqube.version>25.3.0.104237</test-it.sonarqube.version>-->
 <!--        <test-it.sonarqube.version>25.4.0.105899</test-it.sonarqube.version>-->
 <!--        <test-it.sonarqube.version>25.5.0.107428</test-it.sonarqube.version>-->
-        <test-it.sonarqube.version>25.9.0.112764</test-it.sonarqube.version>
+<!--        <test-it.sonarqube.version>25.9.0.112764</test-it.sonarqube.version>-->
 
         <!-- Version of `sonar-java-plugin` used by integration tests (you can override this value to perform matrix compatibility tests) -->
         <test-it.sonarjava.version>${sonarjava.version}</test-it.sonarjava.version>
@@ -395,7 +398,7 @@
             <plugin>
                 <groupId>com.mycila</groupId>
                 <artifactId>license-maven-plugin</artifactId>
-                <!-- max version without pb for JDK 17 / recent versions have a NPE when deploying in docker -->
+                <!-- max version without pb for JDK 11 and 17 / recent versions have a NPE when deploying in docker -->
                 <version>4.1</version>
                 <configuration>
                     <properties>
diff --git a/src/it/test-projects/creedengo-java-plugin-test-project/pom.xml b/src/it/test-projects/creedengo-java-plugin-test-project/pom.xml
index cfb7ba4..0fa4e10 100644
--- a/src/it/test-projects/creedengo-java-plugin-test-project/pom.xml
+++ b/src/it/test-projects/creedengo-java-plugin-test-project/pom.xml
@@ -10,7 +10,7 @@
     <name>creedengo Java Sonar Plugin Test Project</name>
 
     <properties>
-        <java.version>17</java.version>
+        <java.version>11</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>
         <maven.compiler.target>${java.version}</maven.compiler.target>
 
@@ -25,12 +25,12 @@
         <dependency>
             <groupId>org.springframework.data</groupId>
             <artifactId>spring-data-jpa</artifactId>
-            <version>3.3.0</version>
+            <version>2.7.18</version>
         </dependency>
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-beans</artifactId>
-            <version>5.3.25</version>
+            <version>4.3.30.RELEASE</version>
         </dependency>
     </dependencies>