Error on trying to use HTTPClient in AEM 6 | Community
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C
Clive_Stewart
Level 6
October 16, 2015
Solved

Error on trying to use HTTPClient in AEM 6

  • October 16, 2015
  • 4 replies
  • 3505 views

When my osgi bundle tries to make a connection to a wep api from within my application I get 

 

rg.apache.sling.api.scripting.ScriptEvaluationException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/http/HttpRequest at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:388) at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171) at org.apache.sling.scripting.core.impl.DefaultSlingScript.service(DefaultSlingScript.java:463) at org.apache.sling.engine.impl.request.RequestData.service(RequestData.java:511) at org.apache.sling.engine.impl.filter.SlingComponentFilterChain.rend at java.lang.Thread.run(Unknown Source) Caused by: org.apache.sling.api.SlingException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/http/HttpRequest at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:691) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:608) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:525) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:449) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:281) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:102) at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:524) at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361) ... 129 more Caused by: java.lang.NoClassDefFoundError: org/apache/http/HttpRequest at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source)
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Best answer by smacdonald2008

Yes - the above article works in AEM 6 - here is the app working in AEM 6 Classic VIew:

[img]RestCode.png[/img]

it is using HTTPClient in the service. It is invoking Google's Restful web service to calculate the distance between 2 cities. 

TO use HTTPClient in AEM - make sure that you create a bundle fragment (just an OSGi that wraps JAR files - it does not contain any services). You need to include:

  • httpclient-4.0.jar (or another version)
  • httpcore-4.3.2.jar(or another version)

​This is all described in Creating Adobe Experience Manager bundles that invoke third party Restful web services.

4 replies

C
Clive_StewartAuthor
Level 6
October 16, 2015

Thank you.

 

I have managed to get HTTPClient working.

 

 

Regards

 

Clive

    smacdonald2008
    smacdonald2008
    Level 10
    October 16, 2015

    Looks like you have not added these packages to CQ within an OSGi bundle fragment. See this section:

    Including HTTP client packages to CQ

    in this article:

    http://helpx.adobe.com/experience-manager/using/restful-services.html

    This is a 5.x artilce - I am going to test on AEM 6 and I will report back on the findings. I do not expect any issue on AEM 6. 

    smacdonald2008
    smacdonald2008Accepted solution
    Level 10
    October 16, 2015

    Yes - the above article works in AEM 6 - here is the app working in AEM 6 Classic VIew:

    [img]RestCode.png[/img]

    it is using HTTPClient in the service. It is invoking Google's Restful web service to calculate the distance between 2 cities. 

    TO use HTTPClient in AEM - make sure that you create a bundle fragment (just an OSGi that wraps JAR files - it does not contain any services). You need to include:

    • httpclient-4.0.jar (or another version)
    • httpcore-4.3.2.jar(or another version)

    ​This is all described in Creating Adobe Experience Manager bundles that invoke third party Restful web services.

    J
    Adobe Employee
    JustinEd3Adobe Employee
    Adobe Employee
    October 16, 2015

    This article should be updated. There is no longer any reason to make bundles for HttpClient 4.x. Apache distributes an OSGi bundle already.

    There is an unfortunate bug (https://issues.apache.org/jira/browse/HTTPCLIENT-1547) with the latest release, so you should use 4.3.4 for now.

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