NullPointerException in MapMaker

[GoogleCodeExporter]

I ran code attached and got the following exception while monitoring it 
under jvisualvm (jdk1.6.0_14, google-collections:1.0-rc2)

28.09.2009 21:41:34 com.google.common.base.internal.Finalizer cleanUp
SEVERE: Error cleaning up after reference.
java.lang.reflect.InvocationTargetException
    at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp
l.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at 
com.google.common.base.internal.Finalizer.cleanUp(Finalizer.java:154)
    at 
com.google.common.base.internal.Finalizer.run(Finalizer.java:127)
Caused by: java.lang.NullPointerException
    at 
com.google.common.collect.MapMaker$SoftEntry.finalizeReferent(MapMaker.java
:954)
    ... 5 more

Original issue reported on code.google.com by Andrey.A...@gmail.com on 28 Sep 2009 at 5:46

Attachments:

• Test.java

[GoogleCodeExporter]

We're unable to reproduce..

Original comment by kevin...@gmail.com on 14 Oct 2009 at 4:19

[GoogleCodeExporter]

Well, this bug is rather hard to reproduce, but the following sequence does 
reproduce 
it regularly on my machine:

"D:\Program Files (x86)\Java\jdk1.6.0_16\bin\java" -cp 
D:\workspace\test\bin;D:\workspace\test\lib\google-collect-1.0-rc3.jar Test

Open monitor tab in Java Visual VM for the process.

Invoke heap dump, wait for it to complete and switch back to monitor tab.

I'm attaching my sysinfo.

Original comment by Andrey.A...@gmail.com on 2 Nov 2009 at 8:48

Attachments:

• systeminfo.txt

[GoogleCodeExporter]

MapMaker has been basically rewritten since this was reported. Please reopen if 
it (or something similar) is still occurring. :-)

Original comment by yrfselrahc@gmail.com on 13 Jan 2011 at 8:08

• Changed state: Fixed

[GoogleCodeExporter]

This issue has been migrated to GitHub.

It can be found at https://github.com/google/guava/issues/<id>

Original comment by cgdecker@google.com on 1 Nov 2014 at 4:16

• Added labels: MigratedToGitHub

[GoogleCodeExporter]

Original comment by cgdecker@google.com on 3 Nov 2014 at 9:10

• Added labels: Restrict-AddIssueComment-Commit