[MAGNOLIA-6072] NPE at info.magnolia.cms.util.LinkUtil Created: 06/Feb/15  Updated: 01/Jul/15  Resolved: 11/Feb/15

Status: Closed
Project: Magnolia
Component/s: core
Affects Version/s: None
Fix Version/s: 5.3.8

Type: Bug Priority: Neutral
Reporter: Frank Sommer Assignee: Federico Grilli
Resolution: Fixed Votes: 0
Labels: support
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
relation
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Acceptance criteria:
Empty
Task DoD:
[ ]* Doc/release notes changes? Comment present?
[ ]* Downstream builds green?
[ ]* Solution information and context easily available?
[ ]* Tests
[ ]* FixVersion filled and not yet released
[ ]  Architecture Decision Record (ADR)
Bug DoR:
[ ]* Steps to reproduce, expected, and actual results filled
[ ]* Affected version filled
Date of First Response:

 Description   

I have configured my app to show as preview image an asset linked image. But if the dam link is not set, a NullPointerException will be thrown. Reason is that the fingerprint enhancement in the provider can not handle null values.

15-02-06 12:26:07 WARN  AUTHOR[http-bio-8001-exec-10]info.magnolia.event.SimpleEventBus: Exception caught when dispatching a class info.magnolia.ui.workbench.event.SelectionChangedEvent event with class info.magnolia.ui.contentapp.browser.BrowserPresenter$2 eventHandler.
java.lang.NullPointerException
        at info.magnolia.cms.util.LinkUtil.addFingerprintToLink(LinkUtil.java:65)
        at info.magnolia.dam.app.ui.imageprovider.DamLinkImageProvider.getGeneratorImagePath(DamLinkImageProvider.java:105)
        at info.magnolia.dam.app.ui.imageprovider.DamLinkImageProvider.getThumbnailResource(DamLinkImageProvider.java:133)
        at info.magnolia.dam.app.ui.imageprovider.DamLinkImageProvider.getThumbnailResource(DamLinkImageProvider.java:124)
        at info.magnolia.ui.contentapp.browser.BrowserPresenter.getPreviewImageForId(BrowserPresenter.java:285)
        at info.magnolia.ui.contentapp.browser.BrowserPresenter.refreshActionbarPreviewImage(BrowserPresenter.java:239)
        at info.magnolia.ui.contentapp.browser.BrowserPresenter.access$200(BrowserPresenter.java:91)

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