What exactly is packr looking for (Couldn't find JRE in JDK)

[cyberpwnn]

I am trying to package a mac app. I have tried the following

• The Zulu MacOSX Zip (and as a folder, extracted too)
• Installed Oracle JDK on a mac, copied it over to a folder (and zipped it up too)

And every time, I get the same Couldn't find JRE in JDK. Can I not just specify a jre? There isnt much to go on from the readme. Why does this feel so rigid to work with.

[SaadArdati]

What was your solution?

[nyholku]

Why is this closed ... my first attempt to use packr failed for just this reason. I looks to me that problem is (perhaps) that post JDK/JRE 8 there is no folder named jdk/jre in the distrubutions and if that is the case then this should be fixed in packr or if that is not the case then the instructions should be updated to reflect what works and/or pointer here to the relevant info should be added.

[RouHim]

Since Java 11 there is no jre in the jdk folder anymore. There is now only one jdk. This should now be fixed as packr is not compatible with openjdk 11.

More information can be found here.

[timmolter]

Please re-open this issue. Until packr is updated for Java 11, this issue completely kills packr as a viable tool. I'm happy to fix it and submit a PR if it's not too involved.

[timmolter]

I worked around this by manually moving bin and lib to a new folder named jre before zipping the JDK.

[FranPrin]

Awesome timmolter!

[gowthams33]

I am trying to build window app. But I got below Error..
java.io.IOException: Couldn't find JRE in JDK, see '***EXE\out-mac\tmp'
at com.badlogicgames.packr.Packr.copyAndMinimizeJRE(Packr.java:268)
at com.badlogicgames.packr.Packr.pack(Packr.java:69)
at com.ogs.application.installer.JavaInstaller.main(JavaInstaller.java:25)
Kindle help on this issue.

[bendeguz-szatmari]

I worked around this by manually moving bin and lib to a new folder named jre before zipping the JDK.

If you run into security exceptions like java.lang.SecurityException: Can't read cryptographic policy directory: unlimited, make sure to include conf folder aswell.

[brad-eric]

I worked around this by manually moving bin and lib to a new folder named jre before zipping the JDK.

That has helped me create my package which i'm embedding Java 9 inside it, but when running it i get the error:

jre/lib/amd64/server/libjvm.so: cannot open shared object file: No such file or directory
Error: failed to load VM runtime library!

Java 9 doesn't have the "amd64" folder! ... That was in Java 8 but not in Java 9. I guess Packr will not work with Java > 8 anymore :(