ClassNotFoundException when running Grails AWS Plugin - grails

Question

I'm using the Grails AWS Plugin: https://github.com/grails-aws/grails-aws on Grails 2.2.2. I can't get the basic S3 File upload to work. I receive the error below:
Error Log:
ERROR (SLF4JBridgeHandler.java:225) - Servlet.service() for servlet [default] in context with path [] threw exception [org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/http/params/SyncBasicHttpParams] with root cause
java.lang.ClassNotFoundException: org.apache.http.params.SyncBasicHttpParams
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at org.jets3t.service.utils.RestUtils.createDefaultHttpParams(RestUtils.java:574)
at org.jets3t.service.utils.RestUtils.initHttpConnection(RestUtils.java:298)
at org.jets3t.service.impl.rest.httpclient.RestStorageService.initHttpConnection(RestStorageService.java:209)
at org.jets3t.service.impl.rest.httpclient.RestStorageService.initializeDefaults(RestStorageService.java:166)
at org.jets3t.service.StorageService.<init>(StorageService.java:125)
at org.jets3t.service.impl.rest.httpclient.RestStorageService.<init>(RestStorageService.java:153)
at org.jets3t.service.S3Service.<init>(S3Service.java:91)
at org.jets3t.service.impl.rest.httpclient.RestS3Service.<init>(RestS3Service.java:157)
at org.jets3t.service.impl.rest.httpclient.RestS3Service.<init>(RestS3Service.java:131)
at org.jets3t.service.impl.rest.httpclient.RestS3Service.<init>(RestS3Service.java:109)
at grails.plugin.aws.s3.S3FileUpload.inputStreamUpload(S3FileUpload.groovy:85)
at grails.plugin.aws.util.MetaClassInjector$_injectS3UploadMethods_closure3.doCall(MetaClassInjector.groovy:46)
Here is the BuildConfig:
compile ":aws:1.6.7.5"
Controller:
file.inputStream.s3upload(newFilename) {
path "pictures/"
}
So there's nothing special going on here, just basic configuration, but it doesn't work. Any ideas?
UDPATE:
Ran the dependency report to make sure the app is using HTTPClient 4.2 and it is:
httpclient by org.apache.httpcomponents 4.2 4.1.2
Thanks

Answer 1

The the Grails AWS plugin uses AWS SDK 1.6.7 which is dependent on Apache HttpClient 4.2 as you can tell from Maven.
Please add the following dependency to your BuildConfig.groovy:
runtime 'org.apache.httpcomponents:httpclient:4.2'

Answer 2

I was finally able to get it to work by adding the following to the BuildConfig.groovy:
build 'org.apache.httpcomponents:httpcore:4.2'
build 'org.apache.httpcomponents:httpclient:4.2'
runtime 'org.apache.httpcomponents:httpcore:4.2'
runtime 'org.apache.httpcomponents:httpclient:4.2'