Method detach_thread_on_drop

rust/src/api/mod.rs:126–128

If false, the thread will not be detached when the Jvm is being dropped. This is useful when creating a Jvm while on a Thread that is created in the Java world. When this Jvm is dropped, we don't want to detach the thread from the Java VM. It prevents errors like: `attempting to detach while still running code`

(&mut self, detach: bool)

    ///
    /// It prevents errors like: `attempting to detach while still running code`
    pub fn detach_thread_on_drop(&mut self, detach: bool) {
        self.detach_thread_on_drop = detach;
    }

    /// Creates a new Jvm.
    /// If a JavaVM is already created by the current process, it attempts to attach the current thread to it.