PDFBOX-2941: refactor

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1925055 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

debugger/src/main/java/org/apache/pdfbox/debugger/ui/Tree.java

@@ -37,9 +37,10 @@
 import java.awt.datatransfer.StringSelection;
 import java.awt.event.MouseEvent;
 import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.StringJoiner;
@@ -296,11 +297,10 @@ private JMenuItem getFileOpenMenu(final COSStream cosStream, final TreePath node
             {
                 File temp = File.createTempFile("pdfbox", "." + extension);
                 temp.deleteOnExit();
-                
-                try (InputStream is = cosStream.createInputStream();
-                        FileOutputStream os = new FileOutputStream(temp))
+
+                try (InputStream is = cosStream.createInputStream())
                 {
-                    is.transferTo(os);
+                    Files.copy(is, temp.toPath(), StandardCopyOption.REPLACE_EXISTING);
                 }
                 Desktop.getDesktop().open(temp);
             }