diff --git a/api/src/test/java/ai/djl/nn/convolutional/OutputShapeTest.java b/api/src/test/java/ai/djl/nn/convolutional/OutputShapeTest.java
index 1d1100b0d60..6e84ef76b89 100644
--- a/api/src/test/java/ai/djl/nn/convolutional/OutputShapeTest.java
+++ b/api/src/test/java/ai/djl/nn/convolutional/OutputShapeTest.java
@@ -20,15 +20,15 @@
 
 public abstract class OutputShapeTest {
 
-    static NDManager manager;
+    protected NDManager manager;
 
     @BeforeClass
-    public static void setupManager() {
+    public void setupManager() {
         manager = NDManager.newBaseManager();
     }
 
     @AfterClass
-    public static void teardownManager() {
+    public void teardownManager() {
         manager.close();
     }
 }
diff --git a/build.gradle b/build.gradle
index 606a88da024..2a6fd8ea567 100644
--- a/build.gradle
+++ b/build.gradle
@@ -83,6 +83,7 @@ configure(javaProjects()) {
             // systemProperty "ai.djl.logging.level", "debug"
             systemProperty "org.slf4j.simpleLogger.defaultLogLevel", "debug"
             systemProperty "org.slf4j.simpleLogger.log.org.mortbay.log", "warn"
+            systemProperty "org.slf4j.simpleLogger.log.org.testng", "info"
             systemProperty "disableProgressBar", "true"
             systemProperty "nightly", System.getProperty("nightly", "false")
             if (gradle.startParameter.offline) {