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Deployment of EAR file fails due to "living child loaders" ?


During deployment of an EAR file on our NetWeaver CE 7.1 environment, we sometimes get the following exception and deployment fails:

[ERROR CODE DPL.DS.5029] Exception in operation [startApp] with application []. 
[EXCEPTION] [ERROR CODE DPL.DS.5029] Exception in operation [startApp] with application [].
at [...snip...]

Caused by: [ERROR CODE DPL.DS.5066] Cannot remove ApplicationLoader for application [].
at [...snip...]

Caused by: java.lang.IllegalStateException: Trial to unregister the class loader [], which has living child loaders with names:
A certain loader should NOT be unregistered if it has living child loaders. First, these child loaders should be unregistered.
at [...snip...]

Anyone seen this exception before? I only found one thread on SDN but that didn´t help me much

Oh, and the funny thing is: projectear and anotherprojectear have no relationship/dependency whatsoever...

I am curious to know the rootcause

Best regards,

Robin van het Hof

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  • Best Answer
    author's profile photo Former Member
    Former Member
    Posted on Dec 08, 2011 at 03:16 AM

    Hi Robin,

    The error message is quite self explanatory.

    Please review the parent child relationship between the two applications with the llr command in telnet administrator.

    Please review the online help for details:

    Troubleshooting: Finding Missing Parent-Child Relations

    Class Loading System (SAP Library - Administrator's Guide)


    Ventsi Tsachev

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