facing issue while creating live copy from blueprint via the java | Community
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SyntaxError_07
Level 2
July 25, 2025
Solved

facing issue while creating live copy from blueprint via the java

  • July 25, 2025
  • 2 replies
  • 647 views

aem : aem-cloud
i tried to create live copy from the blueprint via the java code...
which i followed this way using wcmcommand servlet, am getting error 

25.07.2025 21:37:02.283 *ERROR* [[0:0:0:0:0:0:0:1] [1753459622282] GET /bin/simpleservlet HTTP/1.1] com.day.cq.wcm.msm.impl.commands.CreateLiveCopyCommand Wrong endpoint called, (bin/wcmcommand), to create live copy from /content/aus/language-masters/pf-pf to /content/aus/pf/pf

what am i missing here, i used entire code from above article to test.

Best answer by SantoshSai

Hi @syntaxerror_07,

Looks like CreateLiveCopyCommand expects to be invoked through/bin/wcmcommand with cmd=createLiveCopy via a POST, but in your case the request that hit AEM was:

GET /bin/simpleservlet

So you (or the sample you copied) are calling the command indirectly from your own servlet, and the command detects it was not reached through the right endpoint and aborts.

What you’re likely missing

  1. HTTP method & endpoint

    • You must POST to /bin/wcmcommand, not GET your own /bin/simpleservlet.

    • Required params typically are: cmd=createLiveCopy, srcPath, destPath, (optionally title, deep, reset, rolloutConfigs, etc.).

  2. AEMaaCS restriction

    • On AEM as a Cloud Service the /bin/wcmcommand servlet is discouraged / often blocked by dispatcher rules. Even if you fix the endpoint/method, it may still be rejected in Cloud. The recommended way is to use the MSM Java API (LiveRelationshipManager) programmatically, not the legacy wcmcommand endpoint.

  3. You invoked the OSGi command directly

    • If you referenced/instantiated CreateLiveCopyCommand (or routed to it) from your own servlet, it will always complain because it checks request.getServletPath() and wants it to be /bin/wcmcommand.

2 replies

SantoshSai
Community Advisor
SantoshSaiCommunity AdvisorAccepted solution
Community Advisor
July 25, 2025

Hi @syntaxerror_07,

Looks like CreateLiveCopyCommand expects to be invoked through/bin/wcmcommand with cmd=createLiveCopy via a POST, but in your case the request that hit AEM was:

GET /bin/simpleservlet

So you (or the sample you copied) are calling the command indirectly from your own servlet, and the command detects it was not reached through the right endpoint and aborts.

What you’re likely missing

  1. HTTP method & endpoint

    • You must POST to /bin/wcmcommand, not GET your own /bin/simpleservlet.

    • Required params typically are: cmd=createLiveCopy, srcPath, destPath, (optionally title, deep, reset, rolloutConfigs, etc.).

  2. AEMaaCS restriction

    • On AEM as a Cloud Service the /bin/wcmcommand servlet is discouraged / often blocked by dispatcher rules. Even if you fix the endpoint/method, it may still be rejected in Cloud. The recommended way is to use the MSM Java API (LiveRelationshipManager) programmatically, not the legacy wcmcommand endpoint.

  3. You invoked the OSGi command directly

    • If you referenced/instantiated CreateLiveCopyCommand (or routed to it) from your own servlet, it will always complain because it checks request.getServletPath() and wants it to be /bin/wcmcommand.

Santosh Sai
    SreenivasBr
    SreenivasBr
    Level 4
    July 25, 2025

    When I wrote this article, I had tried in AEM On-Prem instance and not in AEM Cloud. Can you please try the following? Instead of /bin/wcmcommand, use 

     

    /bin/msm/createLiveCopy with following params

     

    srcPath: Path to the source (blueprint) page
    destPath: Path where the live copy should be created
    title: Title of the live copy
    description: (Optional) Description
    rolloutConfigs: (Optional) Rollout configuration

      S
      SyntaxError_07Author
      Level 2
      July 26, 2025
      26.07.2025 06:24:47.877 *WARN* [[0:0:0:0:0:0:0:1] [1753491287872] GET /bin/simpleservlet HTTP/1.1] org.apache.sling.servlets.post.impl.SlingPostServlet Exception while handling POST on path [/bin/msm/createLiveCopy] with operation [org.apache.sling.servlets.post.impl.operations.ModifyOperation] java.lang.IllegalArgumentException: Can't create child on a synthetic root

      I tried with service user for this /bin/msm/createLiveCopy, still facing above issue.

      SantoshSai
      Community Advisor
      SantoshSaiCommunity Advisor
      Community Advisor
      July 26, 2025

      @syntaxerror_07 
      This servlet is undocumented and may not be available or supported in AEMaaCS, especially since Cloud Service restricts direct servlet access. 

      Rather I would suggest to go with alternative approach and use MSM API programmatically

      You can use the LiveCopyManager API in your custom code (OSGi service or servlet). Here’s the outline:

      1. Inject LiveCopyManagerFactory to obtain a LiveCopyManager instance.

      2. Use createLiveCopy method to create a Live Copy between the blueprint and the target location.

      Sample code

      @Reference private LiveCopyManagerFactory liveCopyManagerFactory; public void createLiveCopy(ResourceResolver resolver, String blueprintPath, String liveCopyPath) throws WCMException { LiveCopyManager liveCopyManager = liveCopyManagerFactory.getLiveCopyManager(resolver); Resource blueprint = resolver.getResource(blueprintPath); Resource liveCopyParent = resolver.getResource(liveCopyPath).getParent(); if (blueprint != null && liveCopyParent != null) { liveCopyManager.createLiveCopy(blueprint, liveCopyParent, liveCopyParent.getName(), null); } else { throw new IllegalArgumentException("Blueprint or target path is invalid."); } }
      Santosh Sai
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