Use java 8 way to convert typed list to array in GeneticAlterationInc…

…rementalImporter

src/main/java/org/mskcc/cbio/portal/scripts/GeneticAlterationIncrementalImporter.java

@@ -87,7 +87,7 @@ private String[] extendValues(int geneticEntityId, String[] values) {
     }
 
     private Map<Integer, String> mapWithFileOrderedSampleList(String[] values) {
-        return ArrayUtil.zip(fileOrderedSampleList.toArray(new Integer[0]), values);
+        return ArrayUtil.zip(fileOrderedSampleList.toArray(Integer[]::new), values);
     }
 
     private void expandRemainingGeneticEntityTabDelimitedRowsWithBlankValue() {