diff --git a/base/pom.xml b/base/pom.xml
index 5357089..8512155 100755
--- a/base/pom.xml
+++ b/base/pom.xml
@@ -43,6 +43,22 @@
                 <filtering>false</filtering>
             </resource>
         </resources>
+        <plugins>
+            <!-- check code style before compilation -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>validate</id>
+                        <phase>validate</phase>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
     </build>
 
 </project>
diff --git a/pom.xml b/pom.xml
index 310805e..9a6b036 100755
--- a/pom.xml
+++ b/pom.xml
@@ -196,6 +196,8 @@
                     <configuration>
                         <configLocation>checkstyle.xml</configLocation>
                         <consoleOutput>true</consoleOutput>
+                        <failsOnError>false</failsOnError>
+                        <linkXRef>false</linkXRef>
                     </configuration>
                     <dependencies>
                         <dependency>
diff --git a/sampler/pom.xml b/sampler/pom.xml
index 73c5c6e..51f9945 100755
--- a/sampler/pom.xml
+++ b/sampler/pom.xml
@@ -155,6 +155,20 @@
                     </execution>
                 </executions>
             </plugin>
+            <!-- check code style before compilation -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>validate</id>
+                        <phase>validate</phase>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.openjfx</groupId>
                 <artifactId>javafx-maven-plugin</artifactId>