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POClass Declaration causes Null Pointer Exception
primarykey
Id
9893673
data
AcceptedAnswerId
9893704
AnswerCount
5
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2012-03-27T16:26:01.723
FavoriteCount
0
LastActivityDate
2012-09-28T18:05:36.270
LastEditDate
2012-03-27T19:57:50.153
LastEditorUserId
1054011
OwnerUserId
1054011
ParentId
0
PostTypeId
1
Score
0
ViewCount
536
LastEditorDisplayName
text
Body
My program crashes due to a null pointer exception. Snip of Stack Trace: <pre><code>java.lang.NullPointerException at com.my.GRTRecTimeSortComparator.compare(SourceFile:15) </code></pre> That's well and good. But my problem is that line 15 is the class declaration: <pre><code>15 public class GRTRecTimeSortComparator implements Comparator<GRTRecord> { 16 @Override 17 public int compare(GRTRecord rec1, GRTRecord rec2) { 18 19 int returnVal=rec1.getRecordCalendar().compareTo(rec2.getRecordCalendar()); 20 return returnVal; 21 } 22} </code></pre> It's calling out the Compare function, but I don't see an issue with that either. Every record has a Unique Calendar assigned to it as well. Any ideas? What have I done wrong here? Edit: in response to queries: No, there is nothing strange about the class itself, other than the fact I wrote it. I AM using Proguard. Maybe the Obfuscation is replacing things incorrectly? I'm writing up tests for the records right now. They SHOULDN'T be <code>null</code>, nor should the <code>Calendars</code>; I use them immediately before, and get good results. Maybe I'm just passing the <code>ArrayList</code> incorrectly. EDIT 2: Logging lines inserted into the class never get run. No matter what I add or do to the class, the null pointer always resolves to the class declaration line. Removed Proguard Obfuscation, and still no dice. I'm REALLY frustrated. Edit 3: For Future Users: Proguard ruins your stack trace. That was the cause of the Above. Remove proguard if you run into issues. The CAUSE was actually a corrupted record in the dataset.
Tags
<java><calendar><nullpointerexception><proguard>
Title
Class Declaration causes Null Pointer Exception
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USSheriff
UserOwnerUserId
1. USSheriff
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PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
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 PostTypePostTypeId
 PTAnswer
3. PO
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 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. This table or related slice is empty.
CommentsPostId
1. COMost likely, the source you're reading from is out of sync with the stack-trace inside your compiled code. Try building from clean, and then re-run.
 singulars
 PostPostId
 POClass Declaration causes Null Pointer Exception
 UserUserId
 USOliver Charlesworth

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