PDFBOX-5660: optimize, as suggested by Valery Bokov, closes #381

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1930566 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/text/PDFTextStripper.java

@@ -31,7 +31,6 @@
 import java.util.Deque;
 import java.util.HashMap;
 import java.util.Iterator;
-import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
 import java.util.SortedMap;
@@ -1877,7 +1876,7 @@ private void writeLine(List<WordWithTextPositions> line)
      */
     private List<WordWithTextPositions> normalize(List<LineItem> line)
     {
-        List<WordWithTextPositions> normalized = new LinkedList<>();
+        List<WordWithTextPositions> normalized = new ArrayList<>();
         StringBuilder lineBuilder = new StringBuilder();
         List<TextPosition> wordPositions = new ArrayList<>();