No preview works after disabling and enabling plugin module

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    • Type: Bug
    • Resolution: Won't Fix
    • Priority: Medium
    • None
    • Affects Version/s: 6.1.0
    • Component/s: Content - Attachments
    • None
    • Severity 3 - Minor

      The steps to replicate the issue, is to do the following:

      1. Go to Add-ons > System Add-ons
      2. Look for conversion
      3. Disable Confluence Document Conversion Library
      4. Enable the plugin again
      5. And enjoy none of your images working on preview

      After following those steps, none of the images in the whole instance were able to be previewed. We tried to set the logging of the preview, imageConverter, and the Confluence Document Conversion Library to DEBUG, and not even a single line appeared on the logs.

      Doing some investigation on a current ticket the following line on the logs of the customer was found:

      ...
2017-05-10 07:10:22,910 ERROR [http-nio-8090-exec-13] [xhtml.view.macro.ViewMacroMarshaller] handleMacroExecutionException Error rendering macro: view-file
 -- url: /confluence/display/OPS/PR.14+Sunday+Night+Print+Room+Procedures | page: 31359080 | traceId: cc0fa683a6b1445c | userName: anonymous | referer: https://devtools.test.aessuccess.org/confluence/display/OPS/PR.4+Output+Quality+Verification | action: viewpage
java.lang.NoClassDefFoundError: Could not initialize class com.atlassian.plugins.conversion.convert.image.ImagingConverter
	at com.atlassian.confluence.plugins.conversion.impl.DefaultConversionManager.getConverters(DefaultConversionManager.java:156)
	at com.atlassian.confluence.plugins.conversion.impl.DefaultConversionManager.isConvertible(DefaultConversionManager.java:134)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
	at org.eclipse.gemini.blueprint.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:56)
...

      We were able to find a ticket that had the same log lines that can be referred below:

            Assignee:
            Unassigned
            Reporter:
            Kombi, the best car ever (Inactive)
            Votes:
            0 Vote for this issue
            Watchers:
            8 Start watching this issue

              Created:
              Updated:
              Resolved: