Merge pull request #438 from apache/feature/add_missing_includes

Add some missing include headers
diff --git a/libs/framework/include/celix/Trackers.h b/libs/framework/include/celix/Trackers.h
index 64011fc..4a2b491 100644
--- a/libs/framework/include/celix/Trackers.h
+++ b/libs/framework/include/celix/Trackers.h
@@ -34,6 +34,7 @@
 #include "celix/Bundle.h"
 #include "celix/Constants.h"
 #include "celix/Filter.h"
+#include "celix/Exception.h"
 #include "celix_bundle_context.h"
 #include "celix_framework.h"
 
diff --git a/libs/utils/gtest/src/HashMapTestSuite.cc b/libs/utils/gtest/src/HashMapTestSuite.cc
index b12e2c8..1f760a9 100644
--- a/libs/utils/gtest/src/HashMapTestSuite.cc
+++ b/libs/utils/gtest/src/HashMapTestSuite.cc
@@ -23,6 +23,7 @@
 #include "celix_string_hash_map.h"
 #include "celix_long_hash_map.h"
 #include <random>
+#include <atomic>
 
 class HashMapTestSuite : public ::testing::Test {
 public: