Use `std::shared_ptr<T>` instead of a `naked pointer` for sane lifcycle, see shared_ptr_ref<>; Drop all unique_ptr<> funcs;

- Store `std::shared_ptr<T>*` in `long nativeInstance`

- Introduced `shared_ptr_ref<T>`, managing the `std::shared_ptr<T>*` preserved instances.

- All historic TinyB code removed

1 files changed, 4 insertions, 4 deletions

diff --git a/java_jni/jni/helper_jni.cxx b/java_jni/jni/helper_jni.cxx
index b9fa08a..3105e07 100644
--- a/java_jni/jni/helper_jni.cxx
+++ b/java_jni/jni/helper_jni.cxx
@@ -1,11 +1,8 @@
 /*
  * Author: Sven Gothel <[email protected]>
- * Copyright (c) 2020 Gothel Software e.K.
+ * Copyright (c) 2020, 2022 Gothel Software e.K.
  * Copyright (c) 2020 ZAFENA AB
  *
- * Author: Andrei Vasiliu <[email protected]>
- * Copyright (c) 2016 Intel Corporation.
- *
  * Permission is hereby granted, free of charge, to any person obtaining
  * a copy of this software and associated documentation files (the
  * "Software"), to deal in the Software without restriction, including
@@ -194,6 +191,9 @@ void jau::rethrow_and_raise_java_exception_jauimpl(JNIEnv *env, const char* file
 //
 
 jfieldID jau::getField(JNIEnv *env, jobject obj, const char* field_name, const char* field_signature) {
+    if( nullptr == obj ) {
+        return nullptr;
+    }
     jclass clazz = env->GetObjectClass(obj);
     java_exception_check_and_throw(env, E_FILE_LINE);
     // J == long