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prosoitos

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Registered: 2018-03-31

Posts: 68

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[SOLVED] Why is javah missing from java10-openjdk?

Why is javah missing from java10-openjdk? Is this an omission or is there a reason for this?

I need javah for rJava and the R packages that depend on it. I've been working around this, over the past several months, by using java9-openjdk instead (see https://stackoverflow.com/questions/500 … #50027990). But now that java10-openjdk is officially replacing java9-openjdk and since javah is still missing from java10-openjdk, I thought that I would ask.

Thank you.

Last edited by prosoitos (2018-08-08 17:05:46)

Raynman

Member

Registered: 2011-10-22

Posts: 1,539

Re: [SOLVED] Why is javah missing from java10-openjdk?

http://openjdk.java.net/jeps/313

prosoitos

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Registered: 2018-03-31

Posts: 68

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Re: [SOLVED] Why is javah missing from java10-openjdk?

Oh! thank you! I've been intrigued by this for months, but had failed to find this info. Looks like javac should do the job, so hopefully I'll get rJava to work.

I appreciate the link!

prosoitos

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Registered: 2018-03-31

Posts: 68

Website

Re: [SOLVED] Why is javah missing from java10-openjdk?

Oh, actually rJava installed without complaint. When I tried it, months ago, when java10-openjdk was just out, it was asking for javah. But apparently, not anymore. I guess an update in rJava must have adapted to the change.

So all is good. Thank you!

Last edited by prosoitos (2018-08-08 08:20:55)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 21,738

Re: [SOLVED] Why is javah missing from java10-openjdk?

Please mark as [SOLVED] by editing the title in your original post: https://wiki.archlinux.org/index.php/Co … ow_to_post

Awebb

Member

Registered: 2010-05-06

Posts: 6,286

Re: [SOLVED] Why is javah missing from java10-openjdk?

Users have been warned of the pending removal since JDK 9, in which a warning is generated each time the javah tool is invoked.

Missed this?

prosoitos

Member

Registered: 2018-03-31

Posts: 68

Website

Re: [SOLVED] Why is javah missing from java10-openjdk?

Thank you for the [SOLVED] reminder.

I never invoked javah directly. I never work with java. I only need to have it installed to have R packages that rely on rJava working... So no, I never saw this.

In fact, I really don't know anything about java and ignored the very existence of javah until R complained about its absence. All I know is that some of the R packages I use need rJava and rJava needs jdk. Sorry for my utter ignorance when it comes to java.

Last edited by prosoitos (2018-08-08 17:10:07)

Awebb

Member

Registered: 2010-05-06

Posts: 6,286

Re: [SOLVED] Why is javah missing from java10-openjdk?

That is a good reason. I also try to avoid Java if possible.