ARTEMIS-2320 Standard Charset object can be used

artemis-protocols/artemis-mqtt-protocol/src/main/java/org/apache/activemq/artemis/core/protocol/mqtt/MQTTPublishManager.java

@@ -17,7 +17,7 @@
 
 package org.apache.activemq.artemis.core.protocol.mqtt;
 
-import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufAllocator;
@@ -268,15 +268,11 @@ public class MQTTPublishManager {
       ByteBuf payload;
       switch (message.getType()) {
          case Message.TEXT_TYPE:
-            try {
             SimpleString text = message.getDataBuffer().readNullableSimpleString();
-               byte[] stringPayload = text.toString().getBytes("UTF-8");
+            byte[] stringPayload = text.toString().getBytes(StandardCharsets.UTF_8);
             payload = ByteBufAllocator.DEFAULT.buffer(stringPayload.length);
             payload.writeBytes(stringPayload);
             break;
-            } catch (UnsupportedEncodingException e) {
-               log.warn("Unable to send message: " + message.getMessageID() + " Cause: " + e.getMessage(), e);
-            }
          default:
             ActiveMQBuffer bodyBuffer = message.getDataBuffer();
             payload = ByteBufAllocator.DEFAULT.buffer(bodyBuffer.writerIndex());

tests/artemis-test-support/src/main/java/org/apache/activemq/transport/amqp/client/AmqpTransferTagGenerator.java

@@ -16,7 +16,7 @@
  */
 package org.apache.activemq.transport.amqp.client;
 
-import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.Set;
@@ -58,12 +58,7 @@ public final class AmqpTransferTagGenerator {
          rc = iterator.next();
          iterator.remove();
       } else {
-         try {
+         rc = Long.toHexString(nextTagId++).getBytes(StandardCharsets.UTF_8);
-            rc = Long.toHexString(nextTagId++).getBytes("UTF-8");
-         } catch (UnsupportedEncodingException e) {
-            // This should never happen since we control the input.
-            throw new RuntimeException(e);
-         }
       }
       return rc;
    }

tests/artemis-test-support/src/main/java/org/apache/activemq/transport/amqp/client/sasl/CramMD5Mechanism.java

@@ -19,7 +19,7 @@ package org.apache.activemq.transport.amqp.client.sasl;
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
 import javax.security.sasl.SaslException;
-import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
 
@@ -30,7 +30,6 @@ import java.security.NoSuchAlgorithmException;
  */
 public class CramMD5Mechanism extends AbstractMechanism {
 
-   private static final String ASCII = "ASCII";
    private static final String HMACMD5 = "HMACMD5";
    private boolean sentResponse;
 
@@ -53,7 +52,7 @@ public class CramMD5Mechanism extends AbstractMechanism {
    public byte[] getChallengeResponse(byte[] challenge) throws SaslException {
       if (!sentResponse && challenge != null && challenge.length != 0) {
          try {
-            SecretKeySpec key = new SecretKeySpec(getPassword().getBytes(ASCII), HMACMD5);
+            SecretKeySpec key = new SecretKeySpec(getPassword().getBytes(StandardCharsets.US_ASCII), HMACMD5);
             Mac mac = Mac.getInstance(HMACMD5);
             mac.init(key);
 
@@ -70,9 +69,7 @@ public class CramMD5Mechanism extends AbstractMechanism {
             }
 
             sentResponse = true;
-            return hash.toString().getBytes(ASCII);
+            return hash.toString().getBytes(StandardCharsets.US_ASCII);
-         } catch (UnsupportedEncodingException e) {
-            throw new SaslException("Unable to utilise required encoding", e);
          } catch (InvalidKeyException e) {
             throw new SaslException("Unable to utilise key", e);
          } catch (NoSuchAlgorithmException e) {

tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/stomp/StompTest.java

@@ -261,7 +261,7 @@ public class StompTest extends StompTestBase {
       byte[] mqttPayload = clientProvider.receive(10000);
       clientProvider.disconnect();
 
-      assertEquals(stompPayload, new String(mqttPayload, "UTF-8"));
+      assertEquals(stompPayload, new String(mqttPayload, StandardCharsets.UTF_8));
       clientProvider.disconnect();
    }