[java-iroha] Gradle fails with "Could not find tools.jar"

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Pierre Neidhardt
Roel Janssen

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Submitted by: Pierre Neidhardt

Severity: normal

Pierre Neidhardt wrote on 26 Mar 2020 08:38

Recipients:(address . bug-guix@gnu.org)

Message-ID:878sjny39s.fsf@ambrevar.xyz

Hi!

I'm trying to build https://github.com/hyperledger/iroha-javamanually

with Gradle (tried with Guix but I'm stuck), and I get the following

error:

Toggle snippet (4 lines)

Execution failed for task ':client:compileJava'.

Could not find tools.jar.

Then it suggests that the Java installation might be wrong.

I tried with icedtea 3.7.0, openjdk 9 and openjdk 12, to no avail.

Are our JDK packages wrong missing some jars?

Pierre Neidhardt

https://ambrevar.xyz/

Roel Janssen wrote on 26 Mar 2020 11:22

Recipients:

Message-ID:e5c4b8a0e8a4af12e62731b1f8d20575a3dce593.camel@gnu.org

On Thu, 2020-03-26 at 08:38 +0100, Pierre Neidhardt wrote:

Toggle quote (17 lines)> Hi!
> 
> I'm trying to build https://github.com/hyperledger/iroha-java manually
> with Gradle (tried with Guix but I'm stuck), and I get the following
> error:
> 
> --8<---------------cut here---------------start------------->8---
> Execution failed for task ':client:compileJava'.
> Could not find tools.jar.
> --8<---------------cut here---------------end--------------->8---
> 
> Then it suggests that the Java installation might be wrong.
> I tried with icedtea 3.7.0, openjdk 9 and openjdk 12, to no avail.
> 
> Are our JDK packages wrong missing some jars?
> 

The "tools.jar" is only in de icedtea:jdk output.
You might also need to set environment variable JAVA_HOME to the Guix profile
root that contains icedtea:jdk.

Kind regards,
Roel Janssen

Pierre Neidhardt wrote on 26 Mar 2020 12:41

Recipients:

Message-ID:87wo77z6ky.fsf@ambrevar.xyz

Roel Janssen <roel@gnu.org> writes:

Toggle quote (4 lines)

> The "tools.jar" is only in de icedtea:jdk output.

> You might also need to set environment variable JAVA_HOME to the Guix profile

> root that contains icedtea:jdk.

Thanks, this is probably related!

However

Toggle snippet (3 lines)

env JAVA_HOME=/home/ambrevar/.guix-extra-profiles/dev/dev ./gradlew jar

fails with the same error.

Pierre Neidhardt

https://ambrevar.xyz/

Pierre Neidhardt wrote on 26 Mar 2020 12:42

Recipients:

Message-ID:87tv2bz6jb.fsf@ambrevar.xyz

By the way, should JAVA_HOME be a native-search-path set by the JDKs?

Pierre Neidhardt

https://ambrevar.xyz/

Roel Janssen wrote on 26 Mar 2020 12:52

Recipients:

Message-ID:c1297d4b39eb83c06c3dbf10bef60c93d881f4e8.camel@gnu.org

On Thu, 2020-03-26 at 12:41 +0100, Pierre Neidhardt wrote:

Toggle quote (18 lines)> Roel Janssen <roel@gnu.org> writes:
> 
> > The "tools.jar" is only in de icedtea:jdk output.
> > You might also need to set environment variable JAVA_HOME to the Guix
> > profile
> > root that contains icedtea:jdk.
> 
> Thanks, this is probably related!
> 
> However
> 
> --8<---------------cut here---------------start------------->8---
> env JAVA_HOME=/home/ambrevar/.guix-extra-profiles/dev/dev ./gradlew jar
> --8<---------------cut here---------------end--------------->8---
> 
> fails with the same error.
> 

Uh, I looked through one of my Java-related packages and found this snippet:

----------

;; Set JAVA_HOME to help maven find the JDK.

(setenv "JAVA_HOME" (string-append (assoc-ref inputs "icedtea")

"/jre"))

----------

So perhaps JAVA_HOME needs to point to <profile-root>/jre. (Sorry for the

previous suggestion..)

I'm not sure why I added this snippet though, but perhaps it's worth a try.

Kind regards,

Roel Janssen

Pierre Neidhardt wrote on 26 Mar 2020 13:46

Recipients:

Message-ID:87o8sjz3l7.fsf@ambrevar.xyz

It worked! Thanks a lot!

So what do you think of adding

(native-search-paths (list (search-path-specification

(variable "JAVA_HOME")

(files '("jre")))))

to icedtea-* and openjdk-*?

Pierre Neidhardt

https://ambrevar.xyz/

Roel Janssen wrote on 26 Mar 2020 14:39

Recipients:

Message-ID:9bf49c49ba6cb5627985c12e0867ae5565b5bb98.camel@gnu.org

On Thu, 2020-03-26 at 13:46 +0100, Pierre Neidhardt wrote:

Toggle quote (11 lines)> It worked!  Thanks a lot!
> 
> So what do you think of adding
> 
> (native-search-paths (list (search-path-specification
>                                 (variable "JAVA_HOME")
>                                 (files '("jre")))))
> 
> to icedtea-* and openjdk-*?
> 

I'm not sure if JAVA_HOME is only needed to build things (so only for the JDK),

or whether it's also useful for JRE.

I agree that it would be good to set when the JDK variant is installed.

Kind regards,

Roel Janssen

Pierre Neidhardt wrote on 2 Apr 2020 09:25

Recipients:(address . guix-devel@gnu.org)

Message-ID:87mu7ubb8i.fsf@ambrevar.xyz

Roel Janssen <roel@gnu.org> writes:

Toggle quote (14 lines)>> So what do you think of adding
>> 
>> (native-search-paths (list (search-path-specification
>>                                 (variable "JAVA_HOME")
>>                                 (files '("jre")))))
>> 
>> to icedtea-* and openjdk-*?
>> 
>
> I'm not sure if JAVA_HOME is only needed to build things (so only for the JDK),
> or whether it's also useful for JRE.
>
> I agree that it would be good to set when the JDK variant is installed.

Is it possible to set the search-path only for a given output?

Pierre Neidhardt

https://ambrevar.xyz/

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