Style fixes

Author: JonasKunz

exporters/common/src/main/java/io/opentelemetry/exporter/internal/grpc/GrpcExporter.java

@@ -86,16 +86,15 @@ private void onResponse(
       GrpcResponse grpcResponse) {
     int statusCode = grpcResponse.grpcStatusValue();
 
-    Attributes requestAttributes =
-        Attributes.builder().put(SemConvAttributes.RPC_GRPC_STATUS_CODE, statusCode).build();
+    Attributes requestAttributes = Attributes.of(SemConvAttributes.RPC_GRPC_STATUS_CODE, (long) statusCode);
 
     if (statusCode == 0) {
       metricRecording.finishSuccessful(requestAttributes);
       result.succeed();
       return;
     }
 
-    metricRecording.finishFailed("" + statusCode, requestAttributes);
+    metricRecording.finishFailed(String.valueOf(statusCode), requestAttributes);
     switch (statusCode) {
       case GRPC_STATUS_UNIMPLEMENTED:
         if (loggedUnimplemented.compareAndSet(false, true)) {

exporters/common/src/main/java/io/opentelemetry/exporter/internal/grpc/GrpcExporterBuilder.java

@@ -250,6 +250,7 @@ public String toString(boolean includePrefixAndSuffix) {
         includePrefixAndSuffix
             ? new StringJoiner(", ", "GrpcExporterBuilder{", "}")
             : new StringJoiner(", ");
+    joiner.add("internalTelemetrySchemaVersion=" + internalTelemetrySchemaVersion);
     joiner.add("exporterType=" + exporterType.toString());
     joiner.add("endpoint=" + endpoint.toString());
     joiner.add("endpointPath=" + grpcEndpointPath);

exporters/common/src/main/java/io/opentelemetry/exporter/internal/http/HttpExporter.java

@@ -84,16 +84,15 @@ private void onResponse(
       HttpSender.Response httpResponse) {
     int statusCode = httpResponse.statusCode();
 
-    Attributes requestAttributes =
-        Attributes.builder().put(SemConvAttributes.HTTP_RESPONSE_STATUS_CODE, statusCode).build();
+    Attributes requestAttributes = Attributes.of(SemConvAttributes.HTTP_RESPONSE_STATUS_CODE, (long) statusCode);
 
     if (statusCode >= 200 && statusCode < 300) {
       metricRecording.finishSuccessful(requestAttributes);
       result.succeed();
       return;
     }
 
-    metricRecording.finishFailed("" + statusCode, requestAttributes);
+    metricRecording.finishFailed(String.valueOf(statusCode), requestAttributes);
 
     byte[] body = null;
     try {

exporters/common/src/main/java/io/opentelemetry/exporter/internal/http/HttpExporterBuilder.java

@@ -249,6 +249,7 @@ public String toString(boolean includePrefixAndSuffix) {
         includePrefixAndSuffix
             ? new StringJoiner(", ", "HttpExporterBuilder{", "}")
             : new StringJoiner(", ");
+    joiner.add("internalTelemetrySchemaVersion=" + internalTelemetrySchemaVersion);
     joiner.add("exporterType=" + exporterType);
     joiner.add("endpoint=" + endpoint);
     joiner.add("timeoutNanos=" + timeoutNanos);