libnpjp2 on Mac OS with M2

[dzuliani]

Hello everybody

I need to run Java from Pale Moon. Pale Moon is running on my new macbook pro with M2 CPU. I was able to install an old version of Java supported by the macOS (Ventura 13.4.1). Java is working because I can run some jar files directly from a shell terminal.
Unfortunately Java doesn't start when I try to run it from a web site that needs Java. I've read the trick for doing that on Linux (you need to create a link such: (ln -s /usr/lib/jvm/jre[ver]/lib/amd64/libnpjp2.so ~/.mozilla/plugins/libnpjp2.so), but what about the macOS? Is there any solution to this problem?

[dbsoft]

I'll have to try that myself later, but just so we are on the same page, can you tell me which Java you installed and which version of Pale Moon you are using? Are you using the native ARM version or the Intel version? It is possible that the Java version you installed's NPAPI plugin is Intel, so you'd need to be running the Intel version of Pale Moon to run Java embedded. Also check to see if the Java plugin is loaded by entering "about:plugins" in the URL bar.

I have not tried to do this on my M1, so I'll try to replicate it when I get some time tonight.

[Moonchild]

about:plugins should be able to at least show you is the NPAPI plugin is present or not.

[dzuliani]

I'll have to try that myself later, but just so we are on the same page, can you tell me which Java you installed and which version of Pale Moon you are using? Are you using the native ARM version or the Intel version? It is possible that the Java version you installed's NPAPI plugin is Intel, so you'd need to be running the Intel version of Pale Moon to run Java embedded. Also check to see if the Java plugin is loaded by entering "about:plugins" in the URL bar.

I have not tried to do this on my M1, so I'll try to replicate it when I get some time tonight.

Hello,
Java version is: 1.8.0_192
Pale Moon Version is 32.3.1 (64-bit) Mac OS ARM
about:plugins -> No installed plugins found

as you stated the problem is probably caused by the ARM version of Pale moon installed I'll try the Intel one

[dzuliani]

Ok,

I've switched Pale Moon from the ARM native version to the Intel version and now it's working. Thank you so much.

[Moonchild]

The ARM native version requires and ARM native NPAPI plugin for the browser (unlike extensions, plugins are architecture-dependent as they are compiled binaries).
The JAva installer probably did not include an ARM native NPAPI plugin, which is why it did not show up in about:plugins. It likely supplied Intel plugins only.