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https://issues.apache.org/jira/browse/IVY-1147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maarten Coene updated IVY-1147:
-------------------------------
Fix Version/s: 2.2.0-RC1
(was: trunk)
> Use of a shared DocumentBuilder causes SAXException during parallel
> resolutions
> -------------------------------------------------------------------------------
>
> Key: IVY-1147
> URL: https://issues.apache.org/jira/browse/IVY-1147
> Project: Ivy
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1.0
> Environment: Vista 32bit Sun JDK 1.6.0_17
> Reporter: Brian Atkinson
> Assignee: Maarten Coene
> Fix For: 2.2.0-RC1
>
>
> I am in need of running multiple instances of ivy in parallel from within the
> same jvm. When I do this I am seeing the following exception:
> org.xml.sax.SAXException: FWK005 parse may not be called while parsing.
> at
> com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:253)
> at
> com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)
> at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:153)
> at org.apache.ivy.util.XMLHelper.parseToDom(XMLHelper.java:198)
> at org.apache.ivy.plugins.parser.m2.PomReader.<init>(PomReader.java:94)
> at
> org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser.parseDescriptor(PomModuleDescriptorParser.java:115)
> at
> org.apache.ivy.plugins.parser.m2.PomModuleDescriptorParser.parseDescriptor(PomModuleDescriptorParser.java:105)
> at
> org.apache.ivy.core.cache.DefaultRepositoryCacheManager$MyModuleDescriptorProvider.provideModule(DefaultRepositoryCacheManager.java:638)
> at
> org.apache.ivy.core.cache.ModuleDescriptorMemoryCache.getStale(ModuleDescriptorMemoryCache.java:68)
> at
> org.apache.ivy.core.cache.DefaultRepositoryCacheManager.getStaledMd(DefaultRepositoryCacheManager.java:655)
> at
> org.apache.ivy.core.cache.DefaultRepositoryCacheManager.cacheModuleDescriptor(DefaultRepositoryCacheManager.java:942)
> at
> org.apache.ivy.plugins.resolver.BasicResolver.parse(BasicResolver.java:542)
> at
> org.apache.ivy.plugins.resolver.BasicResolver.getDependency(BasicResolver.java:263)
> at
> org.apache.ivy.plugins.resolver.IBiblioResolver.getDependency(IBiblioResolver.java:501)
> at
> org.apache.ivy.plugins.resolver.ChainResolver.getDependency(ChainResolver.java:130)
> at
> org.apache.ivy.plugins.resolver.ChainResolver.getDependency(ChainResolver.java:130)
> at org.apache.ivy.core.resolve.IvyNode.loadData(IvyNode.java:170)
> at org.apache.ivy.core.resolve.VisitNode.loadData(VisitNode.java:274)
> at
> org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:671)
> at
> org.apache.ivy.core.resolve.ResolveEngine.doFetchDependencies(ResolveEngine.java:757)
> at
> org.apache.ivy.core.resolve.ResolveEngine.fetchDependencies(ResolveEngine.java:679)
> at
> org.apache.ivy.core.resolve.ResolveEngine.getDependencies(ResolveEngine.java:551)
> at
> org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:235)
> at
> org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:193)
> at
> org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:138)
> at
> org.apache.ivy.core.resolve.ResolveEngine.resolve(ResolveEngine.java:134)
> at org.apache.ivy.Ivy.resolve(Ivy.java:473)
> It seems that the DocumentBuilder created in
> org.apache.ivy.util.XMLHelper.getDocBuilder(EntityResolver) is stored in a
> static variable and only initialized once. Would it be possible to cache the
> DocumentBuilderFactory rather then the DocumentBuilder? Doing this would
> allow for parallel XML parsing. Additionally the entity resolver provided on
> the first call is the only one used for the lifetime of the DocumentBuilder.
> I don't know if this was intended, but the method signature does not seem to
> suggest it.
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