I am using iPOJO 1.11.2 and trying to install it in AEM 5.6.1 as an installed bundle within a content package (and required by other outside packages/bundles) and more frequently than not seeing this exception:
org.apache.sling.installer.core.impl.tasks.BundleStartTask Could not start bundle org.apache.felix.ipojo [342]. Reason: org.osgi.framework.BundleException: Unresolved constraint in bundle org.apache.felix.ipojo [342]: Singleton conflict.. Will retry. There are no other instances of iPOJO on the server until I install my package. My scenarios have been: --------------------------------- 1) Using the Maven content package plugin install the content package (zip) directly into AEM - always works. 2) Using the generated content package (zip), upload and install into AEM - frequently fails. 3) Install iPOJO directly using the OSGi console - seems to work if I do it first but installing/uninstalling just that brings back the issue. 4) Installing my content package (#2) and placing the libraries under “numbered” folders to control the start level. 5) Forcibly starting iPOJO - returns the conflict error.
