Cobertura / Bugs / #80 IndexOutOfBoundsException ?

#80 IndexOutOfBoundsException ?

Status: open

Owner: nobody

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Priority: 5

Updated: 2007-11-26

Created: 2007-11-26

Creator: Anonymous

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Sometimes, i got the following exception:
(Is this a bug in cobertura?)

coverage:

[exec] Exception in thread "Thread-3" java.lang.IndexOutOfBoundsException: Index: 0, Size: 1

[exec] at java.util.ArrayList.RangeCheck(Unknown Source)
[exec] at java.util.ArrayList.get(Unknown Source)
[exec] at net.sourceforge.cobertura.coveragedata.LineData.getJumpData(LineData.java:316)
[exec] at net.sourceforge.cobertura.coveragedata.LineData.touchJump(LineData.java:259)

Discussion

Jiri Mares - 2007-11-26

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This is really strange .. also from the exception it looks everything is alright ... It would be better to discuss in mailing list ... it happens sometimes, everytime??

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Nobody/Anonymous - 2007-12-03

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Hi,
I have also seen this. Unfortunately I cannot consistently reproduce it. Stack trace is:

[jacorb-junit] Exception in thread "RequestProcessor-4" java.lang.IndexOutOfBoundsException: Index: 0, Size: 1
[jacorb-junit] at java.util.ArrayList.RangeCheck(ArrayList.java:546)
[jacorb-junit] at java.util.ArrayList.get(ArrayList.java:321)
[jacorb-junit] at net.sourceforge.cobertura.coveragedata.LineData.getSwitchData(LineData.java:334)
[jacorb-junit] at net.sourceforge.cobertura.coveragedata.LineData.touchSwitch(LineData.java:264)
[jacorb-junit] at net.sourceforge.cobertura.coveragedata.ClassData.touchSwitch(ClassData.java:467)

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Jiri Mares - 2007-12-03

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Aren't you running tests in mutli-threaded environment?

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Nobody/Anonymous - 2007-12-21

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I have similar bug. It happened inside thread, started from test case

The more complete exception stack trace looks like:

java.lang.IndexOutOfBoundsException: Index: 0, Size: 1
at java.util.ArrayList.RangeCheck(ArrayList.java:546)
at java.util.ArrayList.get(ArrayList.java:321)
at net.sourceforge.cobertura.coveragedata.LineData.getJumpData(LineData.java:316)
at net.sourceforge.cobertura.coveragedata.LineData.touchJump(LineData.java:259)
at net.sourceforge.cobertura.coveragedata.ClassData.touchJump(ClassData.java:453)

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Jiri Mares - 2007-12-21

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As I think the cobertura coverage collection is not thread safe at the moment ...

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Michael Koch - 2008-01-22

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The same happens to me sometimes in a java.util.Timer thread, so thread safety may really be an issue.

Exception in thread "Timer-0" java.lang.IndexOutOfBoundsException: Index: 0, Size: 1
at java.util.ArrayList.RangeCheck(ArrayList.java:547)
at java.util.ArrayList.get(ArrayList.java:322)
at net.sourceforge.cobertura.coveragedata.LineData.getJumpData(LineData.java:316)
at net.sourceforge.cobertura.coveragedata.LineData.touchJump(LineData.java:259)
at net.sourceforge.cobertura.coveragedata.ClassData.touchJump(ClassData.java:453)
at de.rowa.nadis.remote.CallbackProxy$CallbackInvocationHandler.invoke(CallbackProxy.java:239)
at $Proxy2.isAlive(Unknown Source)
at de.rowa.nadis.remote.CallbackProxy.checkConnection(CallbackProxy.java:165)
at de.rowa.nadis.remote.ConnectionMonitor$ConnectionMonitorTask.run(ConnectionMonitor.java:95)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

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Gary Levin - 2008-05-20

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We have seen the same problem as this one. It does make Cobertura much less useful. If this is being discussed elsewhere, can someone provide a pointer to the forum? Thanks.

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Jiri Mares - 2008-05-22

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Aren't you running in multi-threaded environment?

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Gary Levin - 2008-05-22

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We are running a multi-threaded program.

* Is there an option for Cobertura to inform it that the program is multi-threaded?

* Is the code generated (injected) by Cobertura thread-safe, or does it depend on the thread-safety of the programs being instrumented?

The error we are seeing is occurring in a constructor, which should by its nature be thread-safe.

Thanks for monitoring this problem.

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Jiri Mares - 2008-05-22

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Unfortunately, at the moment the coverage data objects are not multi-thread-aware :-(

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Anonymous - 2008-10-06

java.lang.IndexOutOfBoundsException: Index: 0, Size: 2
at java.util.ArrayList.RangeCheck(ArrayList.java:546)
at java.util.ArrayList.get(ArrayList.java:321)
at net.sourceforge.cobertura.coveragedata.LineData.getJumpData(LineData.java:316)
at net.sourceforge.cobertura.coveragedata.LineData.touchJump(LineData.java:259)
at net.sourceforge.cobertura.coveragedata.ClassData.touchJump(ClassData.java:453)

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Anonymous - 2010-11-24

I am experiencing exactly the same issue with Sonar 2.4, Cobertura 1.9.4.1.

I am using multiple threads in my test.

I found someone who did a detailed analysis of this problem and proposed a solution here:

http://old.nabble.com/Cobertura-1.9-potential-threading-bug-fix-td19326045.html

Since I am getting this error on every second build, this is pretty much making Cobertura unusable for me. Could we bump up the priority on this?

Last edit: Anonymous 2017-03-23

I am experiencing exactly the same issue with Sonar 2.4, Cobertura 1.9.4.1. I am using multiple threads in my test. I found someone who did a detailed analysis of this problem and proposed a solution here: http://old.nabble.com/Cobertura-1.9-potential-threading-bug-fix-td19326045.html Since I am getting this error on every second build, this is pretty much making Cobertura unusable for me. Could we bump up the priority on this?

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