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https://issues.apache.org/jira/browse/IMAGING-355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Khoury updated IMAGING-355:
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Attachment: (was: output.gif)
> Large animated GIF takes too much heap memory in getMetadata
> ------------------------------------------------------------
>
> Key: IMAGING-355
> URL: https://issues.apache.org/jira/browse/IMAGING-355
> Project: Commons Imaging
> Issue Type: Bug
> Components: Format: GIF
> Affects Versions: 1.0-alpha3
> Reporter: Andrew Khoury
> Priority: Major
>
> When calling ImageParser.getMetadata on large gif files the java heap
> consumption is extremely high.
> For example, see the test project I created:
> https://github.com/andrewmkhoury/commons-imaging-gif-test
> When the max heap is set to `-Xmx1488M` or lower it fails with this
> exception. When the heap is set to `-Xmx1489M` it works.
> {code:java}
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
> at java.base/java.util.Arrays.copyOf(Arrays.java:3745)
> at
> java.base/java.io.ByteArrayOutputStream.toByteArray(ByteArrayOutputStream.java:211)
> at
> org.apache.commons.imaging.mylzw.MyLzwDecompressor.decompress(MyLzwDecompressor.java:143)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.readImageDescriptor(GifImageParser.java:881)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.readBlocks(GifImageParser.java:596)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.readFile(GifImageParser.java:696)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.readFile(GifImageParser.java:680)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.getMetadata(GifImageParser.java:485)
> at
> org.apache.commons.imaging.formats.gif.GifImageParser.getMetadata(GifImageParser.java:58)
> at
> org.apache.commons.imaging.ImageParser.getMetadata(ImageParser.java:832)
> at Test.main(Test.java:28)
> {code}
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