Error when enabling the commentOnlyChangedContent option

[frederickplante]

We want a comment only on the changed content of the pull request (with context lines set to 10) and we're seeing this error when running the jenkins task :

com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Unterminated array at line 1 column 5882431 path $.diffs[132].fileComments[1]
 	at com.google.gson.Gson.fromJson(Gson.java:902)
 	at com.google.gson.Gson.fromJson(Gson.java:852)
 	at com.google.gson.Gson.fromJson(Gson.java:801)
 	at com.google.gson.Gson.fromJson(Gson.java:773)
 	at se.bjurr.violations.comments.bitbucketserver.lib.client.BitbucketServerClient.pullRequestDiff(BitbucketServerClient.java:91)
 	at se.bjurr.violations.comments.bitbucketserver.lib.BitbucketServerCommentsProvider$1.get(BitbucketServerCommentsProvider.java:36)
 	at se.bjurr.violations.comments.bitbucketserver.lib.BitbucketServerCommentsProvider$1.get(BitbucketServerCommentsProvider.java:33)
 	at com.google.common.base.Suppliers$ExpiringMemoizingSupplier.get(Suppliers.java:173)
 	at se.bjurr.violations.comments.bitbucketserver.lib.BitbucketServerCommentsProvider.shouldComment(BitbucketServerCommentsProvider.java:120)
 	at se.bjurr.violations.comments.lib.CommentsCreator.filterChanged(CommentsCreator.java:114)
 	at se.bjurr.violations.comments.lib.CommentsCreator.<init>(CommentsCreator.java:41)
 	at se.bjurr.violations.comments.lib.CommentsCreator.createComments(CommentsCreator.java:25)
 	at se.bjurr.violations.comments.bitbucketserver.lib.ViolationCommentsToBitbucketServerApi.toPullRequest(ViolationCommentsToBitbucketServerApi.java:113)
 	at org.jenkinsci.plugins.jvctb.perform.JvctbPerformer.doPerform(JvctbPerformer.java:95)
 	at org.jenkinsci.plugins.jvctb.perform.JvctbPerformer$1.invoke(JvctbPerformer.java:162)
 	at org.jenkinsci.plugins.jvctb.perform.JvctbPerformer$1.invoke(JvctbPerformer.java:149)
 	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2719)
 	at hudson.remoting.UserRequest.perform(UserRequest.java:118)
 	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
 	at hudson.remoting.Request$2.run(Request.java:328)
 	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
 	at java.util.concurrent.FutureTask.run(Unknown Source)
 	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
 	at hudson.remoting.Engine$1$1.run(Engine.java:63)
 	at java.lang.Thread.run(Unknown Source)
 Caused by: com.google.gson.stream.MalformedJsonException: Unterminated array at line 1 column  path $.diffs[132].fileComments[1]
 	at com.google.gson.stream.JsonReader.syntaxError(JsonReader.java:1559)
 	at com.google.gson.stream.JsonReader.doPeek(JsonReader.java:476)
 	at com.google.gson.stream.JsonReader.skipValue(JsonReader.java:1224)
 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:218)
 	at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41)
 	at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82)
 	at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:129)
 	at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:220)
 	at com.google.gson.Gson.fromJson(Gson.java:887)
 	... 25 more

We are using the latest version of the plugin (1.36) with bitbucket server 4.3

[tomasbjerre]

I just made a release, 1.37, that adds some more information to this error message. You may try that, should be available from update center within a few hours.

Looks like you use latest version of the plugin. What version of Bitbucket Server do you use?

[frederickplante]

We are using the version 4.3.0 of Bitbucket Server.

[tomasbjerre]

Dud you get a chance to try 1.37?

[frederickplante]

I did ask the IT to install it, I'll get back to you when it's done and I have the new stack trace for you (it's not happening on every PR so I need to find one that fails)

[frederickplante]

All right, the new version is now on our server. I haven't seen the error since (it seems to be almost random at this point). Will notify you again it the error ever occur again. Thanks for your quick support anyway!

[frederickplante]

So, I haven't seen this error since I created the issue. I think this can be closed for now. At least there is a trace for future reference if this ever happens again. Thanks for your help!