Getting Exception When Accessing Sightly Helper Class | Community
Skip to main content
GK-007
GK-007
Level 9
March 10, 2016
Solved

Getting Exception When Accessing Sightly Helper Class

  • March 10, 2016
  • 13 replies
  • 5061 views

Hi All,

I have created helper class and written some of the utilities as part of it.Now when i am trying to access this inside my sightly component HTML ,getting below exception.

com.xxxx.dcom.sightly.helpers.components.HomePageBannerComponent POJO.
io.sightly.java.compiler.CompilerException: java.lang.ClassNotFoundException: com.xxxx.dcom.sightly.helpers.components.HomePageBannerComponent
    at io.sightly.java.compiler.SightlyCompileServiceImpl.loadObject(SightlyCompileServiceImpl.java:137)
    at io.sightly.java.compiler.SightlyCompileServiceImpl.getInstance(SightlyCompileServiceImpl.java:80)
    at io.sightly.java.engine.extension.use.PojoUseProvider.provide(PojoUseProvider.java:65)
    at io.sightly.java.engine.extension.use.UseExtension$1.call(UseExtension.java:82)
    at io.sightly.java.runtime.common.SightlyRuntimeImpl.call(SightlyRuntimeImpl.java:51)
    at apps.dcom.dm.components.content.contentsection.homepagebanner.SightlyJava_homepagebanner.render(SightlyJava_homepagebanner.java:50)
    at io.sightly.java.api.BaseRenderUnit.render(BaseRenderUnit.java:39)
    at io.sightly.java.engine.SightlyScriptEngine.evaluateScript(SightlyScriptEngine.java:109)
    at io.sightly.java.engine.SightlyScriptEngine.eval(SightlyScriptEngine.java:93)
    at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:361)
    at org.apache.sling.scripting.core.impl.DefaultSlingScript.eval(DefaultSlingScript.java:171)

Thanks,

Kishore

This post is no longer active and is closed to new replies. Need help? Start a new post to ask your question.
Best answer by smacdonald2008

Can you follow this  article and see if that works: 

https://helpx.adobe.com/experience-manager/using/creating-sightly-component.html

This will tell us if your issue is your environment. If this works - we can rule out an environment issue. 

13 replies

smacdonald2008
smacdonald2008
Level 10
March 10, 2016

Hey Kishore -- looks like the Java class you are using for the Sightly component cannot be found. 2 things to check: 

1 - is the helper class extend com.adobe.cq.sightly.WCMUse? 

2 - is the bundle that you placed the class in an active state? 

For those reading this thread and wanting to know how to use Sightly and Java together - see this AEM Community article: 

https://helpx.adobe.com/experience-manager/using/creating-sightly-component.html

We have more advanced Sightly ones too - for example: 

Creating a Sightly component that uses the AEM QueryBuilder API

Creating an AEM Sightly movie component

All of these show using Sightly on front end with Java on backend. 

Hope this helps

smacdonald2008
smacdonald2008
Level 10
March 10, 2016

Also - this months Ask the Experts is exactly this topic. If you are interested in knowing about AEM and Sightly - sign up here: 

http://scottsdigitalcommunity.blogspot.ca/2016/03/ask-aem-community-experts-deep-dive.html

edubey
edubey
Level 10
March 10, 2016

Apart from wht scott mentioned:

Which AEM version?

Show you code please from component and java

Make sure you are exporting package

GK-007
GK-007Author
Level 9
March 10, 2016

Hi Scott,

Thanks for the reply.

Helper class is implementing WCMUse interface and also bundle is activate state as well.

Syntax for getting this class inside sight component is as below.

<section data-sly-use.homePageBannerComponent="${'com.prj.dcom.sightly.helpers.components.HomePageBannerComponent'}"></section> 

Thanks,

Kishore

GK-007
GK-007Author
Level 9
March 10, 2016

i am using AEM 6.0.0 version.

Thanks,

Kishore

edubey
edubey
Level 10
March 10, 2016

Thanks

Go to the bundle details and see whether you are exporting package and its present there

GK-007
GK-007Author
Level 9
March 10, 2016

Yes ,package of this class is listed in the exported packages of the bundle.

edubey
edubey
Level 10
March 10, 2016

Just wondering.....y these two class names are different

One in exception

io.sightly.java.compiler.CompilerException: java.lang.ClassNotFoundException: com.xxxx.dcom.sightly.helpers.components.HomePageBannerComponent

and one in sightly file

<section data-sly-use.homePageBannerComponent="${'com.prj.dcom.sightly.helpers.components.HomePageBannerComponent'}"></section>

Second thing....................

use this 

<section data-sly-use.homePageBannerComponent="com.prj.dcom.sightly.helpers.components.HomePageBannerComponent">

instead of

<section data-sly-use.homePageBannerComponent="${'com.prj.dcom.sightly.helpers.components.HomePageBannerComponent'}">

GK-007
GK-007Author
Level 9
March 10, 2016

Please consider com.prj.dcom.sightly.helpers.components.HomePageBannerComponent this only.

And also i am seeing below error as well.

11.03.2016 00:53:30.565 *ERROR* [127.0.0.1 [1457637810506] GET /content/www/in/en.html HTTP/1.1] com.adobe.cq.sightly.WCMUse Failed to activate Use class

 

Thanks,

Kishore

smacdonald2008
smacdonald2008Accepted solution
Level 10
March 10, 2016

Can you follow this  article and see if that works: 

https://helpx.adobe.com/experience-manager/using/creating-sightly-component.html

This will tell us if your issue is your environment. If this works - we can rule out an environment issue. 

Show more replies
Terms & ConditionsAccessibility statement

Loading footer...