[WINK-425] NullPointerException in getContentLengthValue (HeadMethodHandler.java:100)

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.4
• Component/s: Server

Environment

Ubuntu 14.04 LTS, Apache 2.4.7, Tomcat 7, Wink 1.4

• Assignee: Unassigned
• Reporter: Slawomir Lisznianski
• Created: 01/Sep/14 19:35
• Updated: 08/Nov/16 14:21

Description

I'd like to reopen bug WINK-357 reported on 11/Jan/12.

A web crawler hitting any of my resources with a HEAD request will cause this error since countingStream is NULL here:

HeadMethodHandler.java:100:
getContentLengthValue() {
  return countingStream.getByteCount();
}

One should not be required to handle HEAD requests only to avoid this bug from being exposed.

i2014-08-28 17:19:18:982 [ajp-bio-8009-exec-1] INFO org.apache.wink.server.internal.registry.ResourceRegistry - The system cannot find any method in the ************ class that supports HEAD
. Verify that a method exists.
2014-08-28 17:19:18:987 [ajp-bio-8009-exec-1] INFO org.apache.wink.server.internal.RequestProcessor - The following error occurred during the invocation of the handlers chain: NullPointerException with message 'null' while processing HEAD request sent to https://pushcoin.com/api/v1/guest/fbauths/code
2014-08-28 17:19:18:987 [ajp-bio-8009-exec-1] ERROR com.pushcoin.pws.provider.UnknownExceptionMapper - Error: 
java.lang.NullPointerException
        at org.apache.wink.server.internal.handlers.HeadMethodHandler$NoBodyResponse.getContentLengthValue(HeadMethodHandler.java:100)
        at org.apache.wink.server.internal.handlers.HeadMethodHandler.handleResponse(HeadMethodHandler.java:83)
        at org.apache.wink.server.handlers.ResponseHandlersChain.handle(ResponseHandlersChain.java:26)
        at org.apache.wink.server.handlers.ResponseHandlersChain.handle(ResponseHandlersChain.java:22)