From: arne@vajhoej.dk

On 10/11/2025 10:13 AM, John Dallman wrote:
> In article <10cdflq$5c0$2@reader2.panix.com>,
> cross@spitfire.i.gajendra.net (Dan Cross) wrote:
>> I think also the focus shifted dramatically once Java came onto
>> the scene; Sun seemed to move away from its traditional computer
>> business in order to focus more full on java and its ecosystem.
>
> They tried that on us, but were deeply unconvincing.
>
> They were expecting us to be impressed that they'd done JNI wrappers of
> about ten functions from our 500+ function API. We said "Presumably you
> have tools to generate this stuff automatically?" and they didn't
> understand what we were talking about.

You may have been lucky.

:-)

The concept of:

Java code---(millions of low level function calls via JNI)--->native code

is not good.

Java code---(thousands of high level service calls via JNI)--->native code

may work OK.

Moving data between managed code and unmanaged code is in general
tricky and cost a lot of CPU cycles.

And Java JNI is not even a good implementation of that.

.NET did much better with InteropServices/DllImport and C++ CLI.

Arne

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