Fix possible null pointers when converting to primitive type.

(cherry picked from commit 410335e)

Author: dkocher

src/main/java/synapticloop/b2/response/B2FileInfoResponse.java

@@ -37,8 +37,8 @@ public class B2FileInfoResponse extends BaseB2Response {
 
 	private final Map<String, String> fileInfo;
 	private final Action action;
-	private final int size;
-	private final long uploadTimestamp;
+	private final Integer size;
+	private final Long uploadTimestamp;
 
 	/**
 	 * Instantiate a file info response with the JSON response as a string from 
@@ -101,7 +101,7 @@ public B2FileInfoResponse(final JSONObject response) throws B2ApiException {
 	 * 
 	 * @return the length of content for this file
 	 */
-	public long getContentLength() { return this.contentLength; }
+	public Long getContentLength() { return this.contentLength; }
 
 	/**
 	 * @return the MIME type of the file
@@ -135,14 +135,14 @@ public B2FileInfoResponse(final JSONObject response) throws B2ApiException {
 	/**
 	 * @return The number of bytes in the file.
 	 */
-	public int getSize() { return this.size; }
+	public Integer getSize() { return this.size; }
 
 	/**
 	 * Return the timestamp that the file was uploaded
 	 *
 	 * @return the timestamp for when the file was uploaded
 	 */
-	public long getUploadTimestamp() { return this.uploadTimestamp; }
+	public Long getUploadTimestamp() { return this.uploadTimestamp; }
 
 	@Override
 	protected Logger getLogger() { return LOGGER; }