src/main/java/org/embulk/output/sftp/ProxyTask.java in embulk-output-sftp-0.2.1 vs src/main/java/org/embulk/output/sftp/ProxyTask.java in embulk-output-sftp-0.2.2

@@ -1,44 +1,44 @@
 package org.embulk.output.sftp;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
-import com.google.common.base.Optional;
 import org.apache.commons.vfs2.FileSystemOptions;
 import org.apache.commons.vfs2.provider.sftp.SftpFileSystemConfigBuilder;
 import org.embulk.config.Config;
 import org.embulk.config.ConfigDefault;
 import org.embulk.config.ConfigException;
 import org.embulk.config.Task;
 
 import java.util.Locale;
+import java.util.Optional;
 
 interface ProxyTask
         extends Task
 {
     @Config("type")
-    public ProxyType getType();
+    ProxyType getType();
 
     @Config("host")
-    public Optional<String> getHost();
+    Optional<String> getHost();
 
     @Config("user")
     @ConfigDefault("null")
-    public Optional<String> getUser();
+    Optional<String> getUser();
 
     @Config("password")
     @ConfigDefault("null")
-    public Optional<String> getPassword();
+    Optional<String> getPassword();
 
     @Config("port")
     @ConfigDefault("22")
-    public int getPort();
+    int getPort();
 
     @Config("command")
     @ConfigDefault("null")
-    public Optional<String> getCommand();
+    Optional<String> getCommand();
 
-    public enum ProxyType
+    enum ProxyType
     {
         HTTP,
         SOCKS,
         STREAM;