8215281: Use String.isEmpty() when applicable in java.base

Reviewed-by: dfuchs, alanb
This commit is contained in:
Claes Redestad 2018-12-13 15:31:05 +01:00
parent c998ead188
commit a3df1d618e
155 changed files with 340 additions and 382 deletions

View file

@ -433,7 +433,7 @@ public class FtpClient extends sun.net.ftp.FtpClient {
logger.finest("Server [" + serverAddr + "] --> " + response);
}
if (response.length() == 0) {
if (response.isEmpty()) {
code = -1;
} else {
try {
@ -1049,7 +1049,7 @@ public class FtpClient extends sun.net.ftp.FtpClient {
if (!isConnected()) {
throw new sun.net.ftp.FtpProtocolException("Not connected yet", FtpReplyCode.BAD_SEQUENCE);
}
if (user == null || user.length() == 0) {
if (user == null || user.isEmpty()) {
throw new IllegalArgumentException("User name can't be null or empty");
}
tryLogin(user, password);
@ -1088,7 +1088,7 @@ public class FtpClient extends sun.net.ftp.FtpClient {
if (!isConnected()) {
throw new sun.net.ftp.FtpProtocolException("Not connected yet", FtpReplyCode.BAD_SEQUENCE);
}
if (user == null || user.length() == 0) {
if (user == null || user.isEmpty()) {
throw new IllegalArgumentException("User name can't be null or empty");
}
tryLogin(user, password);
@ -1152,7 +1152,7 @@ public class FtpClient extends sun.net.ftp.FtpClient {
* @exception <code>FtpProtocolException</code>
*/
public sun.net.ftp.FtpClient changeDirectory(String remoteDirectory) throws sun.net.ftp.FtpProtocolException, IOException {
if (remoteDirectory == null || "".equals(remoteDirectory)) {
if (remoteDirectory == null || remoteDirectory.isEmpty()) {
throw new IllegalArgumentException("directory can't be null or empty");
}
@ -1738,7 +1738,7 @@ public class FtpClient extends sun.net.ftp.FtpClient {
* @throws IOException if an error occurs during the transmission.
*/
public long getSize(String path) throws sun.net.ftp.FtpProtocolException, IOException {
if (path == null || path.length() == 0) {
if (path == null || path.isEmpty()) {
throw new IllegalArgumentException("path can't be null or empty");
}
issueCommandCheck("SIZE " + path);