Add @SuppressWarnings.

Author: garydgregory

src/main/java/org/apache/commons/csv/CSVFormat.java

@@ -36,6 +36,7 @@
 import java.io.Serializable;
 import java.io.StringWriter;
 import java.nio.charset.Charset;
+import java.nio.file.Files;
 import java.nio.file.Path;
 import java.sql.ResultSet;
 import java.sql.ResultSetMetaData;
@@ -884,6 +885,7 @@ public CSVPrinter print(final Appendable out) throws IOException {
      *             thrown if the optional header cannot be printed.
      * @since 1.5
      */
+    @SuppressWarnings("resource")
     public CSVPrinter print(final File out, Charset charset) throws IOException {
         // The writer will be closed when close() is called.
         return new CSVPrinter(new OutputStreamWriter(new FileOutputStream(out), charset), this);

src/main/java/org/apache/commons/csv/CSVParser.java

@@ -155,6 +155,7 @@ public final class CSVParser implements Iterable<CSVRecord>, Closeable {
      * @throws IOException
      *             If an I/O error occurs
      */
+    @SuppressWarnings("resource")
     public static CSVParser parse(final File file, final Charset charset, final CSVFormat format) throws IOException {
         Assertions.notNull(file, "file");
         Assertions.notNull(format, "format");
@@ -360,6 +361,7 @@ public CSVParser(final Reader reader, final CSVFormat format) throws IOException
      *             If there is a problem reading the header or skipping the first record
      * @since 1.1
      */
+    @SuppressWarnings("resource")
     public CSVParser(final Reader reader, final CSVFormat format, final long characterOffset, final long recordNumber)
             throws IOException {
         Assertions.notNull(reader, "reader");