[hibernate-issues] [Hibernate-JIRA] Created: (HHH-6632) Improve exception message when package-info / other file is missing @ metadatasources.buildMetadata()

[Elmer van Chastelet (JIRA)]

Improve exception message when package-info / other file is missing @ metadatasources.buildMetadata()
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                 Key: HHH-6632
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6632
             Project: Hibernate Core
          Issue Type: Improvement
          Components: metamodel
    Affects Versions: 4.0.0.CR2
            Reporter: Elmer van Chastelet


While migrating our project to the new Hibernate Core 4.0, I came across an exception which was thrown during metadatasources.buildMetadata(). Emmanuel helped me to find the cause, which were the missing package-info.java files for the packages I add to the MetadataSources object. If possible, improve this exception message to include info about the file that fails to load.

{code}
Sep 5, 2011 4:17:46 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Allocate exception for servlet mainservlet
java.io.IOException: Stream closed
	at java.io.BufferedInputStream.getInIfOpen(BufferedInputStream.java:151)
	at java.io.BufferedInputStream.fill(BufferedInputStream.java:235)
	at java.io.BufferedInputStream.read1(BufferedInputStream.java:275)
	at java.io.BufferedInputStream.read(BufferedInputStream.java:334)
	at java.io.DataInputStream.readFully(DataInputStream.java:195)
	at java.io.DataInputStream.readFully(DataInputStream.java:169)
	at org.jboss.jandex.Indexer.verifyMagic(Indexer.java:387)
	at org.jboss.jandex.Indexer.index(Indexer.java:628)
	at org.hibernate.metamodel.source.annotations.AnnotationMetadataSourceProcessorImpl.indexClass(AnnotationMetadataSourceProcessorImpl.java:159)
	at org.hibernate.metamodel.source.annotations.AnnotationMetadataSourceProcessorImpl.prepare(AnnotationMetadataSourceProcessorImpl.java:85)
	at org.hibernate.metamodel.source.internal.MetadataImpl.prepare(MetadataImpl.java:180)
	at org.hibernate.metamodel.source.internal.MetadataImpl.<init>(MetadataImpl.java:165)
	at org.hibernate.metamodel.source.internal.MetadataBuilderImpl.buildMetadata(MetadataBuilderImpl.java:83)
	at org.hibernate.metamodel.MetadataSources.buildMetadata(MetadataSources.java:112)
	at utils.HibernateUtilConfigured.<clinit>(HibernateUtilConfigured.java:60)
	at utils.DispatchServlet.tryLoadGlobalsAndPerformInit(DispatchServlet.java:19)
	at utils.DispatchServlet.init(DispatchServlet.java:39)
	at javax.servlet.GenericServlet.init(GenericServlet.java:212)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1173)
	at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:809)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:679)
{code}

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