AWS JAVA SDK - java.lang.NoClassDefFoundError

[idtDev01]

I'm new to calling java objects from railo, but I believe that these few lines of code should work:

<cfset cred = createObject("java","com.amazonaws.auth.BasicAWSCredentials").init(application.s3accessKeyid,application.s3SecretKey) />

<cfset client = createObject("java","com.amazonaws.services.s3.AmazonS3Client").init(cred) />

The cred object works fine, but when the client object gets created, i get the following error:

java.lang.NoClassDefFoundError

org/apache/http/impl/conn/PoolingClientConnectionManager

I have put the aws sdk jar file into the [home]/lib path as instructed at the link below but i can't seem to get around this error:

https://github.com/gbuilt/railo-s3-java-api

Could one of the local guru's point me in the right direction?

[Michael Offner]

Without digging (using a mobile device ATM), there are 2 reasons for this exception

1. The jar where the class "PoolingClientConnectionManager" is in is not loaded because it is not in the class path (maybe you need a addional jar)

2. The jar is in conflict with a jar already present in the class path that contains the same classes in a different version. 

I know this 2 options are very theoretical, but the problem is for sure one of them.

Micha

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/micha

Michael Offner CTO Railo Technologies GmbH

[idtDev01]

Thanks for the reply Micha, that did lead me in the right direction.  There are some third party jars that are included in the sdk in a "Third Party" folder that i wasn't adding.  However when I added the dependencies, i was still getting the following error:

java.lang.NoSuchMethodError

org.apache.http.impl.conn.DefaultClientConnectionOperator.<init>(Lorg/apache/http/conn/scheme/SchemeRegistry;Lorg/apache/http/conn/DnsResolver;)V

It looks like railo 4.1.1.00 was using an older version of the apache httpclient that was conflicting with the newest aws sdk.  I upgraded to Railo 4.1.2.005 final and it's working now.

Thanks again Micha!