Shapefile locking unit test failure in ImagePyramidReaderTest for some
configurations
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Key: GEOT-2258
URL: http://jira.codehaus.org/browse/GEOT-2258
Project: GeoTools
Issue Type: Bug
Components: data shapefile
Affects Versions: 2.6-M0
Environment: Debian Etch i386, jdk1.5.0_16
Reporter: Ben Caradoc-Davies
Assignee: Jesse Eichar
Priority: Minor
On Debian Etch i386, jdk1.5.0_16, geotools trunk does not build, failing a unit
test with some shapefile locking problem (see below). This is repeatable.
Workaround: upgrade to jdk1.5.0_17.
Adding a few string concatenations with no side effects in ShpFiles.java
unlockRead (building debugging information) fixed the problem (Heisenbug!), so
this looks like some sort of nasty threading issue. Slight configuration or
code changes probably change the timing. There is no synchronisation of access
to the map of lockers in ShpFiles.java. But why should this matter (mvn should
be running this single-threaded)? Perplexing.
The error:
java.lang.IllegalArgumentException:
Expected requestor Shapefile datastore for
:file:/home/buildbot/GeoServerTrunkSlave/build/geotools-trunk/modules/plugin/imagepyramid/target/test-classes/org/geotools/gce/imagepyramid/test-data/0/pyramid.shp
to have locked the url but it does not hold the lock
for the URL
at
org.geotools.data.shapefile.ShpFiles.unlockRead(ShpFiles.java:443)
at
org.geotools.data.shapefile.indexed.IndexedShapefileDataStore.needsGeneration(IndexedShapefileDataStore.java:572)
at
org.geotools.data.shapefile.indexed.IndexedShapefileDataStore.indexUseable(IndexedShapefileDataStore.java:517)
at
org.geotools.data.shapefile.indexed.IndexedShapefileDataStore.createFeatureReader(IndexedShapefileDataStore.java:354)
at
org.geotools.data.shapefile.indexed.IndexedShapefileDataStore.getFeatureReader(IndexedShapefileDataStore.java:342)
at
org.geotools.data.AbstractDataStore.getFeatureReader(AbstractDataStore.java:385)
at
org.geotools.data.DefaultFeatureResults.reader(DefaultFeatureResults.java:210)
at
org.geotools.data.store.DataFeatureCollection.openIterator(DataFeatureCollection.java:227)
at
org.geotools.data.store.DataFeatureCollection.iterator(DataFeatureCollection.java:197)
at
org.geotools.data.store.DataFeatureCollection.features(DataFeatureCollection.java:186)
at
org.geotools.gce.imagemosaic.MemorySpatialIndex.<init>(MemorySpatialIndex.java:74)
at
org.geotools.gce.imagemosaic.ImageMosaicReader.createIndex(ImageMosaicReader.java:1368)
at
org.geotools.gce.imagemosaic.ImageMosaicReader.<init>(ImageMosaicReader.java:358)
at
org.geotools.gce.imagemosaic.ImageMosaicReader.<init>(ImageMosaicReader.java:469)
at
org.geotools.gce.imagepyramid.ImagePyramidReader.loadRequestedTiles(ImagePyramidReader.java:535)
at
org.geotools.gce.imagepyramid.ImagePyramidReader.loadTiles(ImagePyramidReader.java:475)
at
org.geotools.gce.imagepyramid.ImagePyramidReader.read(ImagePyramidReader.java:403)
at
org.geotools.gce.imagepyramid.ImagePyramidReaderTest.testDefaultParameterValueString(ImagePyramidReaderTest.java:191)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:81)
at
org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62)
at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140)
at
org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127)
at org.apache.maven.surefire.Surefire.run(Surefire.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at
org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:338)
at
org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:997)
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