javax.jcr.version.VersionException: Mandatory jcr:predecessors property is empty on node - appearing for a particular page, reason? | Community
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shivvikram_sing
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October 16, 2015
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javax.jcr.version.VersionException: Mandatory jcr:predecessors property is empty on node - appearing for a particular page, reason?

  • October 16, 2015
  • 1 reply
  • 1380 views

Hi guys,

Facing this error :- javax.jcr.version.VersionException: Mandatory jcr:predecessors property is empty on node - for a particular page. can anybody give me some reason for this? Will really appreciate some quick help.

Thanks,

Shiv.

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Best answer by akhoury

Hi Shivvikram,

The node that the error is being thrown for is missing an internal property "jcr:predecessors" which is used for node versioning.

If this is preventing you from activating a page then the node missing the property is the jcr:content subnode of the page.  To fix the issue, do the following:

  1. Log in to /crxde web app as admin user
  2. Browse to the page node /content/...
  3. Right click the jcr:content node under that
  4. Select "Mixins" from the context menu
  5. Remove the mix:versionable mixin type
  6. Save
  7. This will remove all versions for that page.  The next time you activate the page it will work and the page will be given a new version history under /jcr:system/jcr:versionStorage/...

Thanks,

Andrew Khoury

1 reply

akhoury
akhouryAccepted solution
Employee
October 16, 2015

Hi Shivvikram,

The node that the error is being thrown for is missing an internal property "jcr:predecessors" which is used for node versioning.

If this is preventing you from activating a page then the node missing the property is the jcr:content subnode of the page.  To fix the issue, do the following:

  1. Log in to /crxde web app as admin user
  2. Browse to the page node /content/...
  3. Right click the jcr:content node under that
  4. Select "Mixins" from the context menu
  5. Remove the mix:versionable mixin type
  6. Save
  7. This will remove all versions for that page.  The next time you activate the page it will work and the page will be given a new version history under /jcr:system/jcr:versionStorage/...

Thanks,

Andrew Khoury

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