Merge pull request #56 from davidmoten/multipart-fix

Multipart should close InputStream

Author: Caitlin Bales (MSFT)

src/main/java/com/microsoft/graph/models/extensions/Multipart.java

@@ -135,8 +135,12 @@ private byte[] getByteArray(InputStream in) throws IOException {
             ByteArrayOutputStream buffer = new ByteArrayOutputStream();
             int nRead;
             byte[] data = new byte[16384];
-            while ((nRead = in.read(data, 0, data.length)) != -1) {
-                buffer.write(data, 0, nRead);
+            try {
+                while ((nRead = in.read(data, 0, data.length)) != -1) {
+                    buffer.write(data, 0, nRead);
+                }
+            } finally {
+                in.close();
             }
             buffer.flush();
             return buffer.toByteArray();