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   curl \ 
    -F"oldPwd=admin" \
    -F"newPwd=Fritz" \   
    -F"newPwdConfirm=Fritz" \
    http://admin:admin@localhost:8080/system/userManager/user/admin.changePassword.html     

You may will also have to set that password in the Felix Web Management Console (/system/console/configMgr) under "Apache Sling Embedded JCR Repository." This is used by Sling to create an admin JCR session (using SlingRepository.loginAdministrative()) for components that need to have full access to the repository.

Note: depending on the login module used in Jackrabbit, the password might not be checked at all (SimpleLoginModule, standard in Jackrabbit <= 1.4). Since Jackrabbit 1.5, the DefaultLoginModule provides full user support.

RESTful API

How do I create a node by posting a json document to a URL?

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