diff --git a/layoutparser-service/layoutparser-service-server/src/test/java/com/knecon/fforesight/service/layoutparser/server/graph/ExtractMarkedContentTest.java b/layoutparser-service/layoutparser-service-server/src/test/java/com/knecon/fforesight/service/layoutparser/server/graph/ExtractMarkedContentTest.java
index 176ed49..e8ba602 100644
--- a/layoutparser-service/layoutparser-service-server/src/test/java/com/knecon/fforesight/service/layoutparser/server/graph/ExtractMarkedContentTest.java
+++ b/layoutparser-service/layoutparser-service-server/src/test/java/com/knecon/fforesight/service/layoutparser/server/graph/ExtractMarkedContentTest.java
@@ -53,9 +53,7 @@ public class ExtractMarkedContentTest {
     @SneakyThrows
     public void testExtractTestWPhromma() throws IOException {
         System.out.printf("\n\n===\n%s\n===\n", "testWPhromma.pdf");
-        PDDocument document = null;
-        try {
-            document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile());
+        try (PDDocument document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile())) {
 
             Map<PDPage, Map<Integer, PDMarkedContent>> markedContents = new HashMap<>();
 
@@ -72,9 +70,7 @@ public class ExtractMarkedContentTest {
 
             PDStructureNode root = document.getDocumentCatalog().getStructureTreeRoot();
             showStructure(root, markedContents);
-        } finally {
-            if (null != document )
-                document.close();
+            document.close();
         }
     }
 
@@ -94,9 +90,7 @@ public class ExtractMarkedContentTest {
     public void testExtractResMultipage() throws IOException {
         System.out.printf("\n\n===\n%s\n===\n", "res_multipage.pdf");
 
-        PDDocument document = null;
-        try {
-            document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile());
+        try(PDDocument document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile())) {
 
             Map<PDPage, Map<Integer, PDMarkedContent>> markedContents = new HashMap<>();
 
@@ -113,9 +107,7 @@ public class ExtractMarkedContentTest {
 
             PDStructureNode root = document.getDocumentCatalog().getStructureTreeRoot();
             showStructure(root, markedContents);
-        } finally {
-            if (document != null)
-                document.close();
+            document.close();
         }
     }
 
@@ -134,9 +126,7 @@ public class ExtractMarkedContentTest {
     @Test
     public void testExtractDailyReport() throws IOException {
         System.out.printf("\n\n===\n%s\n===\n", "Daily Report.pdf");
-        PDDocument document = null;
-        try {
-            document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile());
+        try (PDDocument document = Loader.loadPDF(new ClassPathResource("files/bdr/Drucksache_19_9865.pdf").getFile())) {
 
             Map<PDPage, Map<Integer, PDMarkedContent>> markedContents = new HashMap<>();
 
@@ -153,9 +143,7 @@ public class ExtractMarkedContentTest {
 
             PDStructureNode root = document.getDocumentCatalog().getStructureTreeRoot();
             showStructure(root, markedContents);
-        } finally {
-            if (null != document)
-                document.close();
+            document.close();
         }
     }