Imports java.io's ByteArrayOutputStream instead of 3rd-party class
diff --git a/src/test/java/de/ids_mannheim/korap/tokenizer/TokenizerTest.java b/src/test/java/de/ids_mannheim/korap/tokenizer/TokenizerTest.java
index d98d768..6664fa2 100644
--- a/src/test/java/de/ids_mannheim/korap/tokenizer/TokenizerTest.java
+++ b/src/test/java/de/ids_mannheim/korap/tokenizer/TokenizerTest.java
@@ -2,8 +2,9 @@
import static org.junit.Assert.*;
+import java.io.ByteArrayOutputStream;
+
import opennlp.tools.util.Span;
-import org.apache.maven.surefire.shade.org.apache.commons.io.output.ByteArrayOutputStream;
import org.junit.Test;
import org.junit.Ignore;
import org.junit.runner.RunWith;