Merge pull request ably#601 from ably/feature/issue-596

Replace use of StandardCharsets

Author: Quintin Willison

lib/src/main/java/io/ably/lib/http/HttpUtils.java

@@ -8,7 +8,6 @@
 import java.net.URLDecoder;
 import java.net.URLEncoder;
 import java.nio.charset.Charset;
-import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -147,7 +146,7 @@ public static String encodeURIComponent(String str) {
 			return null;
 		}
 
-		byte[] bytes = str.getBytes(StandardCharsets.UTF_8);
+		byte[] bytes = str.getBytes(Charset.forName("UTF-8"));
 		StringBuilder builder = new StringBuilder(bytes.length);
 
 		for (byte c : bytes) {

lib/src/main/java/io/ably/lib/types/DecodingContext.java

@@ -1,7 +1,6 @@
 package io.ably.lib.types;
 
-import java.util.Map;
-import java.nio.charset.StandardCharsets;
+import java.nio.charset.Charset;
 
 public class DecodingContext {
 
@@ -18,7 +17,7 @@ public byte[] getLastMessageData() {
 		if(lastMessageBinary != null)
 			return lastMessageBinary;
 		else if(lastMessageString != null) {
-			return lastMessageString.getBytes(StandardCharsets.UTF_8);
+			return lastMessageString.getBytes(Charset.forName("UTF-8"));
 		}
 		else
 			return null;