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From "Andreas L. Delmelle (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (XGC-98) UndeclaredThrowableException while loading images
Date Sat, 04 Jul 2015 14:55:11 GMT

    [ https://issues.apache.org/jira/browse/XGC-98?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613876#comment-14613876
] 

Andreas L. Delmelle commented on XGC-98:
----------------------------------------

This will solve two related issues logged against FOP that I had on my TODO list. Already
tried my initial idea, but that did not suffice, so still had to look further, but seems like
you just saved me that trouble. :)

Thanks for investigating and offering the patch!

> UndeclaredThrowableException while loading images
> -------------------------------------------------
>
>                 Key: XGC-98
>                 URL: https://issues.apache.org/jira/browse/XGC-98
>             Project: XMLGraphicsCommons
>          Issue Type: Bug
>    Affects Versions: 1.5, 2.0.1
>            Reporter: Vlad Arkhipov
>
> UndeclaredThrowableException is thrown if an image cannot be loaded for some reason.
> {code}
> Caused by: java.lang.reflect.UndeclaredThrowableException
>         at com.sun.proxy.$Proxy313.readUnsignedInt(Unknown Source)
>         at org.apache.xmlgraphics.image.loader.impl.PreloaderEPS.preloadImage(PreloaderEPS.java:65)
[xmlgraphics-commons-1.5.jar:1.5]
>         at org.apache.xmlgraphics.image.loader.ImageManager.preloadImage(ImageManager.java:175)
[xmlgraphics-commons-1.5.jar:1.5]
>         at org.apache.xmlgraphics.image.loader.cache.ImageCache.needImageInfo(ImageCache.java:128)
[xmlgraphics-commons-1.5.jar:1.5]
>         at org.apache.xmlgraphics.image.loader.ImageManager.getImageInfo(ImageManager.java:122)
[xmlgraphics-commons-1.5.jar:1.5]
>         at org.apache.fop.fo.flow.ExternalGraphic.bind(ExternalGraphic.java:81) [fop-1.1.jar:]
>         at org.apache.fop.fo.FObj.processNode(FObj.java:124) [fop-1.1.jar:]
>         at org.apache.fop.fo.FOTreeBuilder$MainFOHandler.startElement(FOTreeBuilder.java:280)
[fop-1.1.jar:]
>         at org.apache.fop.fo.FOTreeBuilder.startElement(FOTreeBuilder.java:175) [fop-1.1.jar:]
> ...
> Caused by: java.lang.reflect.InvocationTargetException
>         at sun.reflect.GeneratedMethodAccessor2609.invoke(Unknown Source) [:1.8.0_25]
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[rt.jar:1.8.0_25]
>         at java.lang.reflect.Method.invoke(Method.java:483) [rt.jar:1.8.0_25]
>         at org.apache.xmlgraphics.image.loader.impl.AbstractImageSessionContext$ObservingImageInputStreamInvocationHandler.invoke(AbstractImageSessionContext.java:219)
[
> xmlgraphics-commons-1.5.jar:1.5]
>         ... 254 more
> Caused by: java.io.EOFException
>         at javax.imageio.stream.ImageInputStreamImpl.readInt(ImageInputStreamImpl.java:251)
[rt.jar:1.8.0_25]
>         at javax.imageio.stream.ImageInputStreamImpl.readUnsignedInt(ImageInputStreamImpl.java:266)
[rt.jar:1.8.0_25]
>         ... 258 more
> {code}
> The problem being that InvocationHandlers in the classes AbstractImageSessionContext
and ObservableStream do not handle InvocationTargetException properly, and the exception is
propagated up to the proxied interface where InvocationTargetException is not specified.
> I am not sure if you accept pull requests on Github, anyway here it is https://github.com/apache/xml-graphics-commons/pull/1



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