Could not load FFI Provider: (NotImplementedError) FFI not available: null

[ballinascreen]

Folks,

I've been struggling for the past day or so to try and integrate this plugin with my Gradle build environment - with limited success. After initially failing to get it to work with my existing Gradle project, I decided to keep things simple and create a new/pristine Gradle project with only the following configuration in the build.gradle file:

apply plugin: 'com.github.robfletcher.compass'

buildscript {
    repositories {
        mavenLocal()
        maven { url "https://my.internal.repo.proxy.server/artifactory/libs-release" }
    }
    dependencies {
        classpath 'com.github.robfletcher:compass-gradle-plugin:2.0.5'
    }
}

repositories {
    mavenLocal()
    maven { url "https://my.internal.repo.proxy.server/artifactory/libs-release" }
}

We use an internal Artifactory repository server/proxy to retrieve external packages for us and I can see the various gradle-compass, jruby and rubygem packages download as expected.

Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/robfletcher/compass-gradle-plugin/2.0.5/compass-gradle-plugin-2.0.5.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jengelman/gradle/plugins/gradle-processes/0.3.0/gradle-processes-0.3.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jruby-gradle/jruby-gradle-plugin/0.1.9/jruby-gradle-plugin-0.1.9.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-complete/1.7.15/jruby-complete-1.7.15.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-artifacts/1.7.15/jruby-artifacts-1.7.15.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-parent/1.7.15/jruby-parent-1.7.15.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/sonatype/oss/oss-parent/7/oss-parent-7.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/bouncycastle/bcprov-jdk15on/1.50/bcprov-jdk15on-1.50.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-core/1.7.15/jruby-core-1.7.15.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-stdlib/1.7.15/jruby-stdlib-1.7.15.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm/4.0/asm-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-parent/4.0/asm-parent-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/ow2/1.3/ow2-1.3.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-commons/4.0/asm-commons-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-analysis/4.0/asm-analysis-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-util/4.0/asm-util-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/joni/joni/2.1.2/joni-2.1.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-netdb/1.1.2/jnr-netdb-1.1.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-enxio/0.4/jnr-enxio-0.4.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-x86asm/1.0.2/jnr-x86asm-1.0.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-unixsocket/0.3/jnr-unixsocket-0.3.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-posix/3.0.6/jnr-posix-3.0.6.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/extras/bytelist/1.0.11/bytelist-1.0.11.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-constants/0.8.5/jnr-constants-0.8.5.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jcodings/jcodings/1.0.10/jcodings-1.0.10.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-ffi/1.0.10/jnr-ffi-1.0.10.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jffi/1.2.7/jffi-1.2.7.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/jcraft/jzlib/1.1.2/jzlib-1.1.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/sonatype/oss/oss-parent/6/oss-parent-6.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/headius/invokebinder/1.2/invokebinder-1.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/martiansoftware/nailgun-server/0.9.1/nailgun-server-0.9.1.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/martiansoftware/nailgun-all/0.9.1/nailgun-all-0.9.1.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/yecht/1.0/yecht-1.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/joda-time/joda-time/2.3/joda-time-2.3.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/headius/options/1.2/options-1.2.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-tree/4.0/asm-tree-4.0.pom
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-complete/1.7.15/jruby-complete-1.7.15.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/bouncycastle/bcprov-jdk15on/1.50/bcprov-jdk15on-1.50.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-core/1.7.15/jruby-core-1.7.15.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jruby-stdlib/1.7.15/jruby-stdlib-1.7.15.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm/4.0/asm-4.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-commons/4.0/asm-commons-4.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-analysis/4.0/asm-analysis-4.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-util/4.0/asm-util-4.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/joni/joni/2.1.2/joni-2.1.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-netdb/1.1.2/jnr-netdb-1.1.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-enxio/0.4/jnr-enxio-0.4.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-x86asm/1.0.2/jnr-x86asm-1.0.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-unixsocket/0.3/jnr-unixsocket-0.3.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-posix/3.0.6/jnr-posix-3.0.6.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/extras/bytelist/1.0.11/bytelist-1.0.11.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-constants/0.8.5/jnr-constants-0.8.5.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/jcodings/jcodings/1.0.10/jcodings-1.0.10.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jnr-ffi/1.0.10/jnr-ffi-1.0.10.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jffi/1.2.7/jffi-1.2.7.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/github/jnr/jffi/1.2.7/jffi-1.2.7-native.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/yaml/snakeyaml/1.13/snakeyaml-1.13.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/jcraft/jzlib/1.1.2/jzlib-1.1.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/headius/invokebinder/1.2/invokebinder-1.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/martiansoftware/nailgun-server/0.9.1/nailgun-server-0.9.1.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/jruby/yecht/1.0/yecht-1.0.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/joda-time/joda-time/2.3/joda-time-2.3.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/com/headius/options/1.2/options-1.2.jar
Download https://my.internal.repo.proxy.server/artifactory/libs-release/org/ow2/asm/asm-tree/4.0/asm-tree-4.0.jar
Download http://rubygems-proxy.torquebox.org/releases/rubygems/compass/1.0.3/compass-1.0.3.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/sass/3.4.12/sass-3.4.12.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/compass-core/1.0.3/compass-core-1.0.3.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/compass-import-once/1.0.5/compass-import-once-1.0.5.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/chunky_png/1.3.4/chunky_png-1.3.4.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/rb-fsevent/0.9.4/rb-fsevent-0.9.4.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/rb-inotify/0.9.5/rb-inotify-0.9.5.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/multi_json/1.10.1/multi_json-1.10.1.gem
Download http://rubygems-proxy.torquebox.org/releases/rubygems/ffi/1.9.6/ffi-1.9.6.gem

When I then initiate a simple 'compassVersion' task (either in Eclipse STS or via Gradle at the CLI) I eventually get the following:

:compassVersionERROR:  Loading command: install (LoadError)
    Could not load FFI Provider: (NotImplementedError) FFI not available: null
 See http://jira.codehaus.org/browse/JRUBY-4583
ERROR:  While executing gem ... (NoMethodError)
    undefined method `invoke_with_build_args' for nil:NilClass
FAILED

I've had a look at the referenced JIRA ticket, although this appears to relate to JRuby 1.5.x and since I'm running on an x64 Windows based system I didn't think this issue would affect me. Just wondering if I'm missing something obvious. Some additional info about my environment:

OS: Windows 8.1 x64
Java: JDK 1.8.0_31-b13
Gradle: 2.3

Regards,

Shane

[ballinascreen]

FYI:

I've also repeated the process on a Windows 7.1 (64-bit) performing a clean install of Eclipse and Java, however the end result was the same. I also tried adding a runtime dependency on the jffi native library as suggested here (https://www.ruby-forum.com/topic/4414925) but with no luck here either :(

e.g.:

dependencies {
    runtime("com.github.jnr:jffi:1.2.7:native@jar")
}

[kakusuke]

In my case, jruby updating solves this problem.

My build.gradle is following:

buildscript {
  repositories {
    jcenter()
  }
  dependencies {
    classpath "com.github.robfletcher:compass-gradle-plugin:2.0.5"
    classpath "com.github.jruby-gradle:jruby-gradle-plugin:0.1.12"
  }
}
apply plugin: "com.github.robfletcher.compass"

[ballinascreen]

@kakusuke Yes indeed - that did the trick!

Thanks!

Shane