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Posted to general@xmlgraphics.apache.org by bu...@apache.org on 2009/09/18 12:31:15 UTC
DO NOT REPLY [Bug 47868] New: ConcurrentModificationException in
ImageCache.doInvalidURIHouseKeeping()
https://issues.apache.org/bugzilla/show_bug.cgi?id=47868
Summary: ConcurrentModificationException in
ImageCache.doInvalidURIHouseKeeping()
Product: XMLGraphicsCommons
Version: Trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P2
Component: Image codecs
AssignedTo: general@xmlgraphics.apache.org
ReportedBy: mercuron@gmx.ch
If an Image in org/apache/xmlgraphics/image/loader/cache/ImageCache.java
expires a ConcurrentModificationException will be thrown.
The cause is method "private void doInvalidURIHouseKeeping()" which loops over
the Map "this.invalidURIs" and then tries to remove an element from this map in
method "private boolean removeInvalidURIIfExpired(String uri, long timestamp)".
To reproduce the error you can add the following method to ImageCacheTestCase.
public void testImageCacheHouseKeeping() {
ImageCache imageCache = new ImageCache(new TimeStampProvider(), new
DefaultExpirationPolicy(1));
imageCache.registerInvalidURI("invalid");
imageCache.registerInvalidURI("invalid2");
try {
Thread.sleep(1200);
} catch (InterruptedException e) {
e.printStackTrace();
}
imageCache.doHouseKeeping();
}
Stacktrace:
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
at java.util.HashMap$EntryIterator.next(HashMap.java:834)
at java.util.HashMap$EntryIterator.next(HashMap.java:832)
at
org.apache.xmlgraphics.image.loader.cache.ImageCache.doInvalidURIHouseKeeping(ImageCache.java:294)
at
org.apache.xmlgraphics.image.loader.cache.ImageCache.doHouseKeeping(ImageCache.java:287)
at
org.apache.xmlgraphics.image.loader.cache.ImageCache.considerHouseKeeping(ImageCache.java:277)
at
org.apache.xmlgraphics.image.loader.cache.ImageCache.registerInvalidURI(ImageCache.java:206)
at
org.apache.xmlgraphics.image.loader.cache.ImageCache.needImageInfo(ImageCache.java:129)
at
org.apache.xmlgraphics.image.loader.ImageManager.getImageInfo(ImageManager.java:112)
at org.apache.fop.fo.flow.ExternalGraphic.bind(ExternalGraphic.java:81)
at org.apache.fop.fo.FObj.processNode(FObj.java:123)
at
org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:282)
at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:171)
at
org.apache.xalan.transformer.TransformerIdentityImpl.startElement(TransformerIdentityImpl.java:1072)
at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source)
at org.apache.xerces.parsers.AbstractXMLDocumentParser.emptyElement(Unknown
Source)
at org.apache.xerces.xinclude.XIncludeHandler.emptyElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at
org.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:484)
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DO NOT REPLY [Bug 47868] ConcurrentModificationException in
ImageCache.doInvalidURIHouseKeeping()
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47868
Marco <me...@gmx.ch> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mercuron@gmx.ch
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DO NOT REPLY [Bug 47868] ConcurrentModificationException in
ImageCache.doInvalidURIHouseKeeping()
Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=47868
Max Berger <ma...@berger.name> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #1 from Max Berger <ma...@berger.name> 2009-09-18 07:16:55 PDT ---
http://svn.apache.org/viewvc?rev=816640&view=rev
Fixed. Thanks for the report and the testcase!
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