Test fixes: Work in pre Java 1.8 and typo fix

Author: rozza

bson/src/test/scala/org/mongodb/scala/bson/collections/MutableDocumentSpec.scala

@@ -311,7 +311,7 @@ class MutableDocumentSpec extends FlatSpec with Matchers {
     doc1 should equal(Document("key" -> BsonString("value")))
   }
 
-  it should "support clearn" in {
+  it should "support clear" in {
     val doc1: Document = Document("key" -> BsonString("value"), "key2" -> BsonString("value2"))
 
     doc1.clear()

driver/src/it/scala/org/mongodb/scala/CrudSpec.scala

@@ -194,13 +194,13 @@ class CrudSpec extends RequiresMongoDBISpec {
   private def doInsertOne(arguments: BsonDocument): BsonValue = {
     val document = arguments.getDocument("document")
     collection.get.insertOne(document).futureValue
-    Document(("insertedId", document.getOrDefault("_id", BsonNull()))).underlying
+    Document(("insertedId", Option(document.get("_id")).getOrElse(BsonNull()))).underlying
   }
 
   private def doInsertMany(arguments: BsonDocument): BsonValue = {
     val documents = arguments.getArray("documents").asScala.map(_.asDocument())
     collection.get.insertMany(documents).futureValue
-    Document(("insertedIds", documents.map(_.getOrDefault("_id", BsonNull())))).underlying
+    Document(("insertedIds", documents.map(doc => Option(doc.get("_id")).getOrElse(BsonNull())))).underlying
   }
 
   private def doReplaceOne(arguments: BsonDocument): BsonValue = {