Replace IsEmpty() with .length() == 0

Author: harrryr

awsagentprovider/src/main/java/software/amazon/opentelemetry/javaagent/providers/AwsMetricAttributeGenerator.java

@@ -332,7 +332,7 @@ private static String generateRemoteService(SpanData span) {
       String httpUrl = span.getAttributes().get(HTTP_URL);
       try {
         URL url = new URL(httpUrl);
-        if (!url.getHost().isEmpty()) {
+        if (url.getHost().length() != 0) {
           remoteService = url.getHost();
           if (url.getPort() != -1) {
             remoteService += ":" + url.getPort();
@@ -502,7 +502,7 @@ private static void setRemoteResourceTypeAndIdentifier(SpanData span, Attributes
       remoteResourceIdentifier = getDbConnection(span);
     }
 
-    if (cloudformationPrimaryIdentifier.isEmpty()) {
+    if (cloudformationPrimaryIdentifier.length() == 0) {
       cloudformationPrimaryIdentifier = remoteResourceIdentifier;
     }
 
@@ -728,7 +728,7 @@ private static String getDBStatementRemoteOperation(
     }
 
     Matcher matcher = SQL_DIALECT_PATTERN.matcher(remoteOperation.toUpperCase());
-    if (matcher.find() && !matcher.group(0).isEmpty()) {
+    if (matcher.find() && matcher.group(0).length() != 0) {
       remoteOperation = matcher.group(0);
     } else {
       remoteOperation = UNKNOWN_REMOTE_OPERATION;