What's the minimum classpath for an Axis2 client?

Question

I want to build an Axis2 client (I\'m only accessing a remote web service, I\'m not implementing one!) with Maven2 and I don\'t want to add 21MB of JARs to my project.

Answer 1

For those using Gradle, here I exclude unnecessary libraries:

dependencies {

    ext.compileEx = { lib, exModules, exGroups ->
        compile (lib) {
            exModules.each { exclude module : "$it" }
            exGroups.each  { exclude group: "$it" }
        }
    }

    List axisExModules = [ 'axiom-compat', 'jaxen', 'apache-mime4j-core' ]
    List axisExGroups  = [ 'javax.servlet', 'commons-fileupload', 'org.apache.woden',
                           'javax.ws.rs', 'org.apache.geronimo.specs', 'org.codehaus.woodstox' ]
    compileEx ('org.apache.axis2:axis2-adb:1.6.3', axisExModules, axisExGroups)
    compileEx ('org.apache.axis2:axis2-transport-local:1.6.3', axisExModules, axisExGroups)
    compileEx ('org.apache.axis2:axis2-transport-http:1.6.3', axisExModules, axisExGroups)

}

Here is my original post in the Gradle forums.

Answer 2

Had to add the transports, too

<dependency>
    <groupId>org.apache.axis2</groupId>
    <artifactId>axis2-adb</artifactId>
    <version>1.5.4</version>
</dependency>
<dependency>
    <groupId>org.apache.axis2</groupId>
    <artifactId>axis2-transport-local</artifactId>
    <version>1.5.4</version>
</dependency>
<dependency>
    <groupId>org.apache.axis2</groupId>
    <artifactId>axis2-transport-http</artifactId>
    <version>1.5.4</version>
</dependency>

Answer 3

Axis2 version 1.6.2 wouldn't work for me without axis2-xmlbeans (though this may have something to do with the fact that I'm also using the axis2-wsdl2code-maven-plugin plugin and xmlbeans as my data binding framework). I have the following POM:

    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2-kernel</artifactId>
        <version>1.6.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2-adb</artifactId>
        <version>1.6.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2-transport-http</artifactId>
        <version>1.6.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2-transport-local</artifactId>
        <version>1.6.2</version>
    </dependency>
    <dependency>
        <groupId>org.apache.axis2</groupId>
        <artifactId>axis2-xmlbeans</artifactId>
        <version>1.6.2</version>
    </dependency>

Answer 4

The minimum jars for the client are:

• activation-1.1.jar
• axiom-api-1.2.8.jar
• axiom-impl-1.2.8.jar
• axis2-adb-1.5.1.jar
• axis2-kernel-1.5.1.jar
• axis2-transport-http-1.5.1.jar
• axis2-transport-local-1.5.1.jar
• commons-codec-1.3.jar
• commons-httpclient-3.1.jar
• commons-logging-1.1.1.jar
• httpcore-4.0.jar
• mail-1.4.jar
• neethi-2.0.4.jar
• wsdl4j-1.6.2.jar
• XmlSchema-1.4.3.jar

STAX jars below are not part of Axis2 1.5.1 release and will be needed if your JDK version is less than 6:

• stax-1.2.0.jar
• stax-api-1.0.1.jar

Answer 5

Minimal dependency for a working client in summary

---

• axiom-api-1.2.14.jar
• axiom-impl-1.2.14.jar
• axis2-adb-1.6.3.jar
• axis2-kernel-1.6.3.jar
• axis2-transport-http-1.6.3.jar
• axis2-transport-local-1.6.3.jar
• commons-codec-1.3.jar
• commons-httpclient-3.1.jar
• commons-logging-1.1.1.jar
• httpcore-4.0.jar
• mail-1.4.jar
• neethi-3.0.2.jar
• wsdl4j-1.6.2.jar
• XmlSchema-1.4.7.jar

---

Listed below the minimal dependencies with details

client stub uses the ServiceClient Class generated with %AXIS2_HOME%\bin\WSDL2Java tool against a given WSDL (for generating you would need all axis jars on classpath, achieved most easily by setting AXIS_HOME)

Classes required by Client stub at COMPILE time

---

• axiom-api-1.2.14.jar -- required at compilation time by client stub for org.apache.axiom.om.OMElement, org.apache.axiom.soap.SOAPEnvelope, org.apache.axiom.soap.SOAPFactory, org.apache.axiom.om.OMNamespace
• axis2-adb-1.6.3.jar -- required at compilation time by client stub for org.apache.axis2.databinding.ADBException
• axis2-kernel-1.6.3.jar -- required at compilation time by client stub for org.apache.axis2.AxisFault Class

Classes required for successful invocation of Client stub at RUN time

• axiom-impl-1.2.14.jar (without this org.apache.axiom.om.OMException: No meta factory found for feature 'default'; this usually means that axiom-impl.jar is not in the classpath)
• axis2-transport-http-1.6.3.jar (without this org.apache.axis2.deployment.DeploymentException: org.apache.axis2.transport.http.CommonsHTTPTransportSender)
• axis2-transport-local-1.6.3.jar (without this org.apache.axis2.deployment.DeploymentException: org.apache.axis2.transport.local.LocalTransportSender)
• commons-codec-1.3.jar (without this java.lang.NoClassDefFoundError: org/apache/commons/codec/DecoderException)
• commons-httpclient-3.1.jar (without this org.apache.axis2.deployment.DeploymentException: org/apache/commons/httpclient/HttpException)
• commons-logging-1.1.1.jar (without this java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory)
• httpcore-4.0.jar (without this java.lang.NoClassDefFoundError: org/apache/http/HttpResponseFactory)
• mail-1.4.jar (without this java.lang.NoClassDefFoundError: javax/mail/internet/ParseException)
• neethi-3.0.2.jar (without this java.lang.NoClassDefFoundError: org/apache/neethi/PolicyComponent)
• wsdl4j-1.6.2.jar (without this java.lang.NoClassDefFoundError: javax/wsdl/WSDLException)
• XmlSchema-1.4.7.jar (without this java.lang.ClassNotFoundException: org/apache/ws/commons/schema/XmlSchema)

---

org.apache.axis2.AxisFault: Connection refused: connect -> ERROR ONLY if the web service is not up or accessible for some other reason

Note the exact version(s), however behavior would be generic enough subject to packaging changes across version, hence, mentionined the FQCNs above-

Axis Version - 1.6.3

Tomcat Version - Apache Tomcat/7.0.64

Servlet version - 3.0

java.runtime.version - 1.7.0_79-b15

Answer 6

In Axis2 version 1.5.1 the maven modules appear to have been restructured.

My Groovy scripts (Using ADB binding) have the following dependencies:

@Grapes([
    @Grab(group='org.apache.axis2', module='axis2-kernel', version='1.5.1'),
    @Grab(group='org.apache.axis2', module='axis2-adb', version='1.5.1'),
    @Grab(group='org.apache.axis2', module='axis2-transport-local', version='1.5.1'),
    @Grab(group='org.apache.axis2', module='axis2-transport-http', version='1.5.1'),
])

There's a logic to these. I could use an alternative binding framework when generating my stub or could use an alternative transport protocol to HTTP.

Example code in this answer