fixed npe while importing

vipra-cmd/src/main/java/de/vipra/cmd/file/FilebaseWordIndex.java

@@ -53,8 +53,8 @@ public class FilebaseWordIndex implements Iterable<String> {
 	public String transform(final String[] words, final boolean dbInsert) {
 		final CountMap<String> countMap = new CountMap<>();
 		for (final String word : words) {
-			if (!word.trim().isEmpty()) {
-				countMap.count(word);
+			if (word != null && !word.trim().isEmpty()) {
+				countMap.count(word.trim());
 				if (dbInsert)
 					newWords.add(word);
 			}

vipra-cmd/src/main/java/de/vipra/cmd/text/ProcessedText.java

@@ -21,8 +21,8 @@ public class ProcessedText {
 		final String[] allWords = text.toLowerCase().trim().split("\\s+");
 		final List<String> wordList = new ArrayList<>(allWords.length);
 		for (final String word : allWords)
-			if (!word.trim().isEmpty())
-				wordList.add(word);
+			if (word != null && !word.trim().isEmpty())
+				wordList.add(word.trim());
 		words = wordList.toArray(new String[allWords.length]);
 		originalWordCount = wordCount;
 		reducedWordCount = words.length;