In 2023, what is the easiest recommended way to call a Java class from C++? Note that the opposite is easy through JNI, JNA or JNR. Now C++ calling Java has been historically hard.

This page summarizes the projects mentioned and recommended in the original post on /r/cpp_questions
Kotlin Java Cross-Platform Android Jni

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  • jni-bind

    JNI Bind is a set of advanced syntactic sugar for writing efficient correct JNI Code in C++17 (and up).

  • JavaToCppAndBack

    Call Java from C++ and C++ from Java with a variety of old and new projects like JNI, JNA, JNR, FFM, JExtract, GraalVM, JNI-Bind, etc.

    • I'm maintaining a GitHub repo (https://github.com/coralblocks/JavaToCppAndBack) with an assortment of examples of Java to C++ and C++ to Java integration. Below some code examples:

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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