diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/AssetTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/AssetTest.java
index ca0154a..9118228 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/AssetTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/AssetTest.java
@@ -9,9 +9,13 @@
 
 import java.util.Properties;
 
-import javax.ws.rs.core.Application;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.core.Response.Status;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.core.Application;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.MultivaluedHashMap;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response.Status;
 
 public class AssetTest extends JerseyTest {
     
diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/CsvExporterTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/CsvExporterTest.java
index 01f9978..5b25c28 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/CsvExporterTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/CsvExporterTest.java
@@ -5,7 +5,7 @@
 import static org.junit.Assert.assertEquals;
 import org.junit.Test;
 
-import javax.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response;
 
 public class CsvExporterTest {
     
diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/JsonExporterTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/JsonExporterTest.java
index fb74a2f..6e21511 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/JsonExporterTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/JsonExporterTest.java
@@ -4,14 +4,18 @@
 import java.io.File;
 import java.io.BufferedReader;
 import java.io.FileReader;
-import javax.ws.rs.core.StreamingOutput;
+import java.io.InputStream;
+
+
+
+import jakarta.ws.rs.core.StreamingOutput;
 
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import org.junit.Test;
 
-import javax.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response;
 
 public class JsonExporterTest {
 
diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/RtfExporterTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/RtfExporterTest.java
index 9d838fd..7945dae 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/RtfExporterTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/RtfExporterTest.java
@@ -8,7 +8,7 @@
 
 import org.junit.Test;
 
-import javax.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response;
 
 public class RtfExporterTest {
     
diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
index ceb66e1..a24d5fc 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
@@ -26,21 +26,23 @@
 import java.util.LinkedList;
 import java.util.Properties;
 
-import javax.ws.rs.client.Entity;
-import javax.ws.rs.core.Application;
-import javax.ws.rs.core.HttpHeaders;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.MultivaluedHashMap;
-import javax.ws.rs.core.Response;
-import javax.ws.rs.core.Response.Status;
+import jakarta.ws.rs.client.Entity;
+import jakarta.ws.rs.core.Application;
+import jakarta.ws.rs.core.HttpHeaders;
+import jakarta.ws.rs.core.MediaType;
+import jakarta.ws.rs.core.MultivaluedHashMap;
+import jakarta.ws.rs.core.Response;
+import jakarta.ws.rs.core.Response.Status;
 
 // SSE testing
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.ClientBuilder;
+import jakarta.ws.rs.client.Client;
+import jakarta.ws.rs.client.ClientBuilder;
 import org.glassfish.jersey.media.sse.EventListener;
 import org.glassfish.jersey.media.sse.EventSource;
 import org.glassfish.jersey.media.sse.SseFeature;
 import java.util.concurrent.TimeUnit;
+import jakarta.ws.rs.client.WebTarget;
+import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.ConcurrentLinkedQueue;
 
 import org.glassfish.jersey.server.ResourceConfig;