[MAGNOLIA-6345] Prevent null pointer exception in LinkUtil#convertAbsoluteLinksToUUIDs and #convertLinksFromUUIDPattern Created: 18/Aug/15  Updated: 15/Apr/16  Resolved: 19/Aug/15

Status: Closed
Project: Magnolia
Component/s: None
Affects Version/s: None
Fix Version/s: 5.3.11, 5.4.2

Type: Bug Priority: Neutral
Reporter: Evzen Fochr Assignee: Evzen Fochr
Resolution: Fixed Votes: 0
Labels: None
Remaining Estimate: 0d
Time Spent: 6.25h
Original Estimate: Not Specified

Issue Links:
dependency
is depended upon by MGNLUI-3446 RichTextField: required=true validato... Closed
relation
is related to MGNLUI-3445 RichTextField: Emptying the fields co... Closed
Template:
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
Sprint: Sprint 6 (Kromeriz)

 Description   

We need to check if incoming string is not null because Matcher.match fails with null value later.

java.lang.NullPointerException
	at java.util.regex.Matcher.getTextLength(Matcher.java:1234)
	at java.util.regex.Matcher.reset(Matcher.java:308)
	at java.util.regex.Matcher.<init>(Matcher.java:228)
	at java.util.regex.Pattern.matcher(Pattern.java:1088)
	at info.magnolia.link.LinkUtil.convertAbsoluteLinksToUUIDs(LinkUtil.java:143)
	at info.magnolia.dam.app.ui.field.factory.AssetsEnabledRichTextFieldFactory$2.convertToModel(AssetsEnabledRichTextFieldFactory.java:125) ...

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