Review fixes for mongo-3.1:library (open-telemetry#17538)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>

Author: otelbot[bot]

instrumentation/mongo/mongo-3.1/library/src/main/java/io/opentelemetry/instrumentation/mongo/v3_1/MongoTelemetryBuilder.java

@@ -11,8 +11,7 @@
 /** A builder of {@link MongoTelemetry}. */
 public final class MongoTelemetryBuilder {
 
-  // Visible for testing
-  static final int DEFAULT_MAX_NORMALIZED_QUERY_LENGTH = 32 * 1024;
+  private static final int DEFAULT_MAX_NORMALIZED_QUERY_LENGTH = 32 * 1024;
 
   private final OpenTelemetry openTelemetry;
   private final String instrumentationName;

instrumentation/mongo/mongo-3.1/library/src/main/java/io/opentelemetry/instrumentation/mongo/v3_1/internal/MongoInstrumenterFactory.java

@@ -19,7 +19,7 @@
  */
 public final class MongoInstrumenterFactory {
 
-  public static final int DEFAULT_MAX_NORMALIZED_QUERY_LENGTH = 32 * 1024;
+  static final int DEFAULT_MAX_NORMALIZED_QUERY_LENGTH = 32 * 1024;
 
   public static Instrumenter<CommandStartedEvent, Void> createInstrumenter(
       OpenTelemetry openTelemetry, String instrumentationName, boolean querySanitizationEnabled) {

instrumentation/mongo/mongo-3.1/library/src/main/java/io/opentelemetry/instrumentation/mongo/v3_1/internal/StringBuilderWriter.java

@@ -27,7 +27,7 @@ public void flush() {}
   @Override
   public void close() {}
 
-  public StringBuilder getBuilder() {
+  StringBuilder getBuilder() {
     return sb;
   }
 }

instrumentation/mongo/mongo-3.1/library/src/test/java/io/opentelemetry/instrumentation/mongo/v3_1/internal/MongoDbAttributesGetterTest.java

@@ -91,11 +91,12 @@ void shouldTruncateArray() {
         .isIn("{\"cmd\": \"c\", \"f1\": [\"?\", \"?", "{\"cmd\": \"c\", \"f1\": [\"?\",");
   }
 
-  static String sanitizeQueryAcrossVersions(MongoDbAttributesGetter extractor, BsonDocument query) {
+  private static String sanitizeQueryAcrossVersions(
+      MongoDbAttributesGetter extractor, BsonDocument query) {
     return sanitizeAcrossVersions(extractor.sanitizeQuery(query));
   }
 
-  static String sanitizeAcrossVersions(String json) {
+  private static String sanitizeAcrossVersions(String json) {
     json = json.replaceAll("\\{ ", "{");
     json = json.replaceAll(" }", "}");
     json = json.replaceAll(" :", ":");