Re: [Geotools-gt2-users] [Geotools-devel] Missing EDU.oswego.cs.dl.util.concurrent.ConcurrentHashMap

[Chris H. <ch...@op...>]

Ok, just dug in to this a bit, since I got the error on GeoServer.  The 
original commit was done by Jesse, and added a dependency on an arcsde 
jar.  Which must have contained this class.  I also found this page: 
http://gee.cs.oswego.edu/dl/concurrency-interest/index.html  Which would 
appear to be the same code, in line with what Jody said that it made 
it's way in to Java 1.5.

I downloaded the jsr166 jar that is there, unfortunately it does not 
contain that package.  So I think the thing to do is to change the 
package to be java.util.concurrent, and add the jsr166 jar in the 
pom.xml, so that it works with 1.4.  And then I believe everything 
should be good to go.

C

Richard Gould wrote:
> This one seems weird to me. The shapefile plugin pom.xml declares no 
> such dependency. What's the name of the jar that should contain this 
> ConcurrentHashMap class?
> 
> Richard
> 
> Jody Garnett wrote:
>> todd runstein wrote:
>>
>>> I have a ShapefileDataStore that I'm trying to render
>>> with StreamingRenderer.  I was able to do this in 2.2
>>> M2, but in 2.2 RC3 I get an error (trace follows).  I
>>> am able to render a TigerDataStore with the same code,
>>> but shapefiles throw the error.  
>>> The ConcurrentHashMap class isn't in any of the jars
>>> for either version.  Is this a new dependency that I
>>> don't have?  If so, what am I missing and where do I
>>> get it?
>>>   
>> I think this error goes out to Richard who put together the 2.2.RC3 list...
>> Richard is their a chance we missed switching something over to the
>> concurrency package?
>>
>> Their is a great set of concurrency classes that has been adopted first by
>> esri and then by Java 5. The library is available seperatly and we now use
>> the original in geotools so as to still work with Java 1.4.
>>
>> The motivation for the release of 2.2.RC3 was to remove the direct
>> dependency on ESRI code (even just stuff they repackaged).
>>
>> Jody
>>
>>> Thanks,
>>>
>>> Todd
>>>
>>> Here's the trace:
>>> java.lang.NoClassDefFoundError:
>>> EDU/oswego/cs/dl/util/concurrent/ConcurrentHashMap
>>>     at org.geotools.data.Diff.<init>(Diff.java:69)
>>>     at
>>> org.geotools.data.TransactionStateDiff.diff(TransactionStateDiff.java:100) 
>>>
>>>     at
>>> org.geotools.data.AbstractDataStore.getFeatureReader(AbstractDataStore.java:358) 
>>>
>>>     at
>>> org.geotools.data.DefaultFeatureResults.reader(DefaultFeatureResults.java:147) 
>>>
>>>     at
>>> org.geotools.renderer.lite.StreamingRenderer.getReader(StreamingRenderer.java:1090) 
>>>
>>>     at
>>> org.geotools.renderer.lite.StreamingRenderer.processStylers(StreamingRenderer.java:1188) 
>>>
>>>     at
>>> org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:506) 
>>>
>>>     at
>>> org.geotools.renderer.lite.StreamingRenderer.paint(StreamingRenderer.java:412) 
>>>
>>>     at
>>> com.mymaps.viewers.AbstractViewer$ImageGenerator.construct(AbstractViewer.java:765) 
>>>
>>>     at
>>> javax.swing.SwingWorker3.SwingWorker$2.run(SwingWorker.java:108)
>>>     at java.lang.Thread.run(Thread.java:534)
>>>
>>>
>>>
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>>
>>
> 
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-- 
Chris Holmes
The Open Planning Project
http://topp.openplans.org