diff --git a/extension-utils/src/serialization/PayloadSerializer.cpp b/extension-utils/src/serialization/PayloadSerializer.cpp
index 13ab8ec1c4..7fd22e171d 100644
--- a/extension-utils/src/serialization/PayloadSerializer.cpp
+++ b/extension-utils/src/serialization/PayloadSerializer.cpp
@@ -19,16 +19,10 @@
 #include "serialization/PayloadSerializer.h"
 #include "io/StreamPipe.h"
 
-namespace org {
-namespace apache {
-namespace nifi {
-namespace minifi {
+namespace org::apache::nifi::minifi {
 
 int64_t PayloadSerializer::serialize(const std::shared_ptr<core::FlowFile>& flowFile, const std::shared_ptr<io::OutputStream>& out) {
   return reader_(flowFile, InputStreamPipe{*out});
 }
 
-} /* namespace minifi */
-} /* namespace nifi */
-} /* namespace apache */
-} /* namespace org */
+}  // namespace org::apache::nifi::minifi
diff --git a/extension-utils/src/utils/CallBackTimer.cpp b/extension-utils/src/utils/CallBackTimer.cpp
index fdad8c16ed..70e26dc7a6 100644
--- a/extension-utils/src/utils/CallBackTimer.cpp
+++ b/extension-utils/src/utils/CallBackTimer.cpp
@@ -19,11 +19,7 @@
 #include "utils/CallBackTimer.h"
 #include <stdexcept>
 
-namespace org {
-namespace apache {
-namespace nifi {
-namespace minifi {
-namespace utils {
+namespace org::apache::nifi::minifi::utils {
 
 CallBackTimer::CallBackTimer(std::chrono::milliseconds interval, const std::function<void(void)>& func) : execute_(false), func_(func), interval_(interval) {
 }
@@ -85,8 +81,4 @@ bool CallBackTimer::is_running() const {
   return execute_ && thd_.joinable();
 }
 
-} /* namespace utils */
-} /* namespace minifi */
-} /* namespace nifi */
-} /* namespace apache */
-} /* namespace org */
+}  // namespace org::apache::nifi::minifi::utils
diff --git a/extensions/aws/AWSCredentialsProvider.cpp b/extensions/aws/AWSCredentialsProvider.cpp
index 622c3ea960..a4ed3c42ec 100644
--- a/extensions/aws/AWSCredentialsProvider.cpp
+++ b/extensions/aws/AWSCredentialsProvider.cpp
@@ -23,21 +23,17 @@
 #include "aws/core/auth/AWSCredentialsProviderChain.h"
 #include "properties/Properties.h"
 
-namespace org {
-namespace apache {
-namespace nifi {
-namespace minifi {
-namespace aws {
+namespace org::apache::nifi::minifi::aws {
 
 AWSCredentialsProvider::AWSCredentialsProvider(
     bool use_default_credentials,
-    const std::string &access_key,
-    const std::string &secret_key,
-    const std::string &credentials_file)
+    std::string access_key,
+    std::string secret_key,
+    std::string credentials_file)
   : use_default_credentials_(use_default_credentials)
-  , access_key_(access_key)
-  , secret_key_(secret_key)
-  , credentials_file_(credentials_file) {
+  , access_key_(std::move(access_key))
+  , secret_key_(std::move(secret_key))
+  , credentials_file_(std::move(credentials_file)) {
 }
 
 void AWSCredentialsProvider::setUseDefaultCredentials(bool use_default_credentials) {
@@ -91,8 +87,4 @@ std::optional<Aws::Auth::AWSCredentials> AWSCredentialsProvider::getAWSCredentia
   return std::nullopt;
 }
 
-}  // namespace aws
-}  // namespace minifi
-}  // namespace nifi
-}  // namespace apache
-}  // namespace org
+}  // namespace org::apache::nifi::minifi::aws
diff --git a/extensions/aws/AWSCredentialsProvider.h b/extensions/aws/AWSCredentialsProvider.h
index 2240f74b63..664f847094 100644
--- a/extensions/aws/AWSCredentialsProvider.h
+++ b/extensions/aws/AWSCredentialsProvider.h
@@ -39,9 +39,9 @@ class AWSCredentialsProvider {
  public:
   explicit AWSCredentialsProvider(
     bool use_default_credentials = false,
-    const std::string &access_key = "",
-    const std::string &secret_key = "",
-    const std::string &credentials_file = "");
+    std::string access_key = "",
+    std::string secret_key = "",
+    std::string credentials_file = "");
   void setUseDefaultCredentials(bool use_default_credentials);
   void setAccessKey(const std::string &access_key);
   void setSecretKey(const std::string &secret_key);
diff --git a/extensions/aws/processors/S3Processor.cpp b/extensions/aws/processors/S3Processor.cpp
index 9d9931c859..86a6bc61ba 100644
--- a/extensions/aws/processors/S3Processor.cpp
+++ b/extensions/aws/processors/S3Processor.cpp
@@ -121,7 +121,7 @@ void S3Processor::onSchedule(core::ProcessContext& context, core::ProcessSession
 
   if (auto communications_timeout = context.getProperty<core::TimePeriodValue>(CommunicationsTimeout)) {
     logger_->log_debug("S3Processor: Communications Timeout {}", communications_timeout->getMilliseconds());
-    client_config_->connectTimeoutMs = gsl::narrow<long>(communications_timeout->getMilliseconds().count());  // NOLINT(runtime/int)
+    client_config_->connectTimeoutMs = gsl::narrow<long>(communications_timeout->getMilliseconds().count());  // NOLINT(runtime/int,google-runtime-int)
   } else {
     throw Exception(PROCESS_SCHEDULE_EXCEPTION, "Communications Timeout missing or invalid");
   }
diff --git a/extensions/azure/storage/AzureBlobStorageClient.cpp b/extensions/azure/storage/AzureBlobStorageClient.cpp
index 92209a3e4a..629313b700 100644
--- a/extensions/azure/storage/AzureBlobStorageClient.cpp
+++ b/extensions/azure/storage/AzureBlobStorageClient.cpp
@@ -102,7 +102,7 @@ std::unique_ptr<io::InputStream> AzureBlobStorageClient::fetchBlob(const FetchAz
   if (params.range_start || params.range_length) {
     Azure::Core::Http::HttpRange range;
     if (params.range_start) {
-      range.Offset = *params.range_start;
+      range.Offset = gsl::narrow<int64_t>(*params.range_start);
     }
 
     if (params.range_length) {
diff --git a/libminifi/test/unit/SchedulingAgentTests.cpp b/libminifi/test/unit/SchedulingAgentTests.cpp
index 3765a76ecc..da2cac0615 100644
--- a/libminifi/test/unit/SchedulingAgentTests.cpp
+++ b/libminifi/test/unit/SchedulingAgentTests.cpp
@@ -58,6 +58,11 @@ class CountOnTriggersProcessor : public minifi::core::ProcessorImpl {
   std::atomic<size_t> number_of_triggers = 0;
 };
 
+#ifdef __GNUC__
+// array-bounds warnings in GCC produce a lot of false positives: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56456
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
+#endif
 class SchedulingAgentTestFixture {
  public:
   SchedulingAgentTestFixture() {
@@ -87,6 +92,9 @@ class SchedulingAgentTestFixture {
   std::shared_ptr<core::ProcessContext> context_ = std::make_shared<core::ProcessContextImpl>(node_, nullptr, test_repo_, test_repo_, content_repo_);
   std::shared_ptr<core::ProcessSessionFactory> factory_ = std::make_shared<core::ProcessSessionFactoryImpl>(context_);
 };
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 
 
 TEST_CASE_METHOD(SchedulingAgentTestFixture, "TimerDrivenSchedulingAgent") {