BouncyCastle and Scala Configuration File with Grails

BouncyCastle and Scala Configuration File with Grails
Recently, I finish a task about bouncy castle and scala jar dependencies with configuration file. Certainly, I met some problem. So I made a note here.

1. BouncyCastle Security Provider
First, I need to made some changes to my files under JAVA_HOME to enable the security provider.
Here is the JAVA_HOME directory in my MAC pro.
/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home

And I need to download bcprov-jdk16-1.46.jar and copy it to my directory
$JAVA_HOME/lib/ext 

Then I need to edit the security file here.
$JAVA_HOME/lib/security/java.security 

Adding the follow lines:
security.provider.11=org.bouncycastle.jce.provider.BouncyCastleProvider

2. Version Conflict
But I still get some error messages as follow:
Error Message 1:
Exception while try to send push notifications at user time:
java.lang.IllegalArgumentException: org.bouncycastle.jce.provider.symmetric
        at java.lang.ClassLoader.definePackage(ClassLoader.java:1451)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:348)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:249)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)

alternatively, sometimes error message is as follow:

Error Message 2:
java.lang.IllegalArgumentException: org.bouncycastle.jcajce.provider.symmetric
        at java.lang.ClassLoader.definePackage(ClassLoader.java:1451)
        at java.net.URLClassLoader.definePackage(URLClassLoader.java:348)
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:249)
        at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
        at org.codehaus.groovy.tools.RootLoader.oldFindClass(RootLoader.java:152)
        at org.codehaus.groovy.tools.RootLoader.loadClass(RootLoader.java:124)
        at org.codehaus.groovy.grails.cli.support.GrailsRootLoader.loadClass(GrailsRootLoader.java:43)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
        at org.bouncycastle.jce.provider.BouncyCastleProvider.loadAlgorithms(Unknown Source)
        at org.bouncycastle.jce.provider.BouncyCastleProvider.setup(Unknown Source)
        at org.bouncycastle.jce.provider.BouncyCastleProvider.access$000(Unknown Source)

Solution:
I google for a while, but still I can not find any useful answer. So I begin to read the source codes of bouncy castle. I found that it should be version conflict. Since the package name changes from version 1.5 to 1.6. The version information are as follow:
1.5
org/bouncycastle/jcajce/provider/symmetric/
1.6
org/bouncycastle/jce/provider/symmetric/

And I got 2 different version of jars under my war/WEB-INF/lib directory. They are installed from the ivy plugin.
/Users/carl/.ivy2/cache/org.bouncycastle/bcprov-jdk15on
/Users/carl/.ivy2/cache/org.bouncycastle/bcprov-jdk16

So my solution is to exclude them in my war packages. Since I am using grails in this project. I will do like this.

In the BuildConfig.groovy file, put something like this under dependencies as follow:
…snip…
dependencies {
     runtime('com.sillycat:projectname_api_2.10:0.1.6'){
            excludes([ group: 'org.bouncycastle', name: 'bcprov-jdk15on', version: '147'],
                     [ group: 'org.bouncycastle', name: 'bcprov-jdk16', version: '1.46'])
     }
}

That fix the problem.

3. Publish my Scala jar to Local Maven
>sbt publish-local
This will publish the jar package to ivy local directory.

Change the build.sbt as follow:
publishTo := Some(Resolver.file("file",  new File(Path.userHome.absolutePath+"/.m2/repository")) 

>sbt publish
This will publish the jar package to maven local directory.

4. Grails Running Configuration
The reference.conf is inside the jar package, sometimes, we need to overwrite some items in that, so we try to create a file named application.conf and run the command as follow:

>export GRAILS_OPTS="-Dconfig.file=/Users/carl/project/conf/application.conf -Xms256m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m"

>grails run-app

And one more tip, if you grails ORM tells you that 
013-07-17 16:45:00,369 [pool-1-thread-41] ERROR org.hibernate.LazyInitializationException  - could not initialize proxy - no Sessionex org.hibernate.LazyInitializationException: could not initialize proxy - no Session
at Skipped non-Digby elements.(:35)

Make sure you place (lazy: false) in the object property.


References: