[OLINGO-3] NPE guard for missing Accept headers

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: V2 1.0.0
• Component/s: odata2-core
• Environment: 1.0.0-SNAPSHOT
• Assignee: Stephan Klevenz
• Reporter: Akitoshi Yoshida
• Created: 14/Aug/13 10:35
• Updated: 11/Dec/13 14:52
• Resolved: 12/Sep/13 14:43

Description

org.apache.olingo.odata2.core.rest.RestUtil's extractAcceptHeaders is not guarding against an NPE for the missing accept headers.

cxf-2.7.x currently returns an empty list in this case, therefore it does not lead to an issue. However, the correct behavior is to return a null in this case.

https://java.net/jira/browse/JAX_RS_SPEC-391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=359530#action_359530

Therefore, the above method should guard against an NPE for the acceptHeaders variable being null.