SOAP impl error in Java 6

Hello,
I am making a J2SE client which can communicate with J2EE Server using webservices.
but when running my client i have this error:

com.sun.xml.internal.messaging.saaj.soap.ver1_1.Message1_1Impl cannot be cast to com.sun.xml.messaging.saaj.soap.MessageImpl

Apparently its a bug in SAAj-impl in java 6 (but i am using java7 with Java6 compatibility in my Eclipse) :
http://java.net/jira/browse/SAAJ-19

So i have change my pom.xml like this:

		<dependency>
			<groupId>com.sun.xml.rpc</groupId>
			<artifactId>jaxrpc-impl</artifactId>
			<version>1.1.3_01</version>
		</dependency>
		<dependency>
			<groupId>javax.activation</groupId>
			<artifactId>activation</artifactId>
			<version>1.1.1</version>
		</dependency>
		<dependency>
			<groupId>com.sun.xml.messaging.saaj</groupId>
			<artifactId>saaj-impl</artifactId>
			<version>1.3</version>
		</dependency>

		<dependency>
			<groupId>javax.mail</groupId>
			<artifactId>mail</artifactId>
			<version>1.4.1</version>
		</dependency>

But i doesn't solved the problem. Maybe the buged saaj-impl is still used.
How can i desactivate the wrong saaj-impl and forced to use saaj-impl 1.3?

thanks