diff --git a/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollKQueueIovArrayTest.java b/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollKQueueIovArrayTest.java
index ab72958114..3008c6ca45 100644
--- a/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollKQueueIovArrayTest.java
+++ b/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollKQueueIovArrayTest.java
@@ -23,6 +23,6 @@ public class EpollKQueueIovArrayTest extends IovArrayTest {
 
     @BeforeClass
     public static void loadNative() {
-        Assume.assumeTrue(Epoll.isAvailable());
+        Epoll.ensureAvailability();
     }
 }
diff --git a/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSocketTest.java b/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSocketTest.java
index fcbbde01d9..8bfff89f10 100644
--- a/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSocketTest.java
+++ b/transport-native-epoll/src/test/java/io/netty/channel/epoll/EpollSocketTest.java
@@ -27,12 +27,11 @@ import java.io.IOException;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertTrue;
-import static org.junit.Assume.assumeTrue;
 
 public class EpollSocketTest extends SocketTest<LinuxSocket> {
     @BeforeClass
     public static void loadJNI() {
-        assumeTrue(Epoll.isAvailable());
+        Epoll.ensureAvailability();
     }
 
     @Test
diff --git a/transport-native-epoll/src/test/java/io/netty/channel/epoll/LinuxSocketTest.java b/transport-native-epoll/src/test/java/io/netty/channel/epoll/LinuxSocketTest.java
index e6f900a968..41e8fa64e2 100644
--- a/transport-native-epoll/src/test/java/io/netty/channel/epoll/LinuxSocketTest.java
+++ b/transport-native-epoll/src/test/java/io/netty/channel/epoll/LinuxSocketTest.java
@@ -22,12 +22,10 @@ import java.io.IOException;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
 
-import static org.junit.Assume.assumeTrue;
-
 public class LinuxSocketTest {
     @BeforeClass
     public static void loadJNI() {
-        assumeTrue(Epoll.isAvailable());
+        Epoll.ensureAvailability();
     }
 
     @Test(expected = IOException.class)
diff --git a/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueIovArrayTest.java b/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueIovArrayTest.java
index f59db0cc36..42fa8b746c 100644
--- a/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueIovArrayTest.java
+++ b/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueIovArrayTest.java
@@ -16,13 +16,12 @@
 package io.netty.channel.kqueue;
 
 import io.netty.channel.unix.tests.IovArrayTest;
-import org.junit.Assume;
 import org.junit.BeforeClass;
 
 public class KQueueIovArrayTest extends IovArrayTest {
 
     @BeforeClass
     public static void loadNative() {
-        Assume.assumeTrue(KQueue.isAvailable());
+        KQueue.ensureAvailability();
     }
 }
diff --git a/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketTest.java b/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketTest.java
index 73bc1eda2f..2188101443 100644
--- a/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketTest.java
+++ b/transport-native-kqueue/src/test/java/io/netty/channel/kqueue/KQueueSocketTest.java
@@ -25,12 +25,11 @@ import org.junit.Test;
 import java.io.IOException;
 
 import static org.junit.Assert.*;
-import static org.junit.Assume.assumeTrue;
 
 public class KQueueSocketTest extends SocketTest<BsdSocket> {
     @BeforeClass
     public static void loadJNI() {
-        assumeTrue(KQueue.isAvailable());
+        KQueue.ensureAvailability();
     }
 
     @Test