[SLING-10425] JSON Convertion of streams can throw an NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Servlets Get 2.1.44
• Component/s: Servlets
• Assignee: Karl Pauls
• Reporter: Karl Pauls
• Created: 27/May/21 09:50
• Updated: 02/Jun/21 10:46
• Resolved: 27/May/21 10:59

Description

The getLength() call for streams has been changed in https://issues.apache.org/jira/browse/SLING-9726 to do a valueMap.get(key, Long.class) - that can cause an NPE if there is no value for the key.

Looks like this:

org.apache.sling.servlets.get.impl.helpers.JsonRenderer Error in JsonRendererServlet: {}
java.lang.NullPointerException: null
	at org.apache.sling.servlets.get.impl.util.JsonObjectCreator.getLength(JsonObjectCreator.java:245) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.JsonObjectCreator.createProperty(JsonObjectCreator.java:221) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.JsonObjectCreator.create(JsonObjectCreator.java:95) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.ResourceTraversor.adapt(ResourceTraversor.java:139) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.ResourceTraversor.addChildren(ResourceTraversor.java:152) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.ResourceTraversor.addChildren(ResourceTraversor.java:152) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.ResourceTraversor.addChildren(ResourceTraversor.java:152) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.util.ResourceTraversor.getJSONObject(ResourceTraversor.java:143) [org.apache.sling.servlets.get:2.1.42]
	at org.apache.sling.servlets.get.impl.helpers.JsonRenderer.render(JsonRenderer.java:119) [org.apache.sling.servlets.get:2.1.42]

Issue Links

• is caused by: SLING-9726 Support more property types for JSON conversion