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I'm making a change to a set of code for a Flex project that I didn't write and was set up to compile using ant tasks. I assume that the codebase was stable at the last checkin but I'm running into memory issues when trying to build a project using MXMLC and ant (see stack trace below). Before, I was just getting an out of memory error. I tried using a different machine and got this more verbose exception (including problems with the image fetcher). I've tried using various versions of the SDK, I've tried replacing the <mxmlc> tag with <exec executable="mxmlc"> with no luck. Here is my java version in case that has anything to do with it:

» java -version
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)

Any help would be appreciated. Thanks!

Buildfile: build.xml

compileSWF:
     [echo] Compiling main.swf... 
    [mxmlc] Loading configuration file /Applications/Adobe Flash Builder 4 Plug-in/sdks/4.0.0beta2/frameworks/flex-config.xml
    [mxmlc] Exception in thread "Image Fetcher 0" java.lang.OutOfMemoryError: Java heap space
    [mxmlc]     at java.awt.image.PixelGrabber.setDimensions(PixelGrabber.java:360)
    [mxmlc]     at sun.awt.image.ImageDecoder.setDimensions(ImageDecoder.java:62)
    [mxmlc]     at sun.awt.image.JPEGImageDecoder.sendHeaderInfo(JPEGImageDecoder.java:71)
    [mxmlc]     at sun.awt.image.JPEGImageDecoder.readImage(Native Method)
    [mxmlc]     at sun.awt.image.JPEGImageDecoder.produceImage(JPEGImageDecoder.java:119)
    [mxmlc]     at sun.awt.image.InputStreamImageSource.doFetch(InputStreamImageSource.java:246)
    [mxmlc]     at sun.awt.image.ImageFetcher.fetchloop(ImageFetcher.java:172)
    [mxmlc]     at sun.awt.image.ImageFetcher.run(ImageFetcher.java:136)
    [mxmlc] /src/com/amtrak/components/map/MapAsset.mxml: Error: exception during transcoding: Failed to grab pixels for image /src/assets/embed_assets/images/zoomed_map_wide.jpg
    [mxmlc] 
    [mxmlc] /src/com/amtrak/components/map/MapAsset.mxml: Error: Unable to transcode /assets/embed_assets/images/zoomed_map_wide.jpg.
    [mxmlc] 
    [mxmlc] Error: Java heap space
    [mxmlc] 
    [mxmlc] java.lang.OutOfMemoryError: Java heap space
    [mxmlc]     at java.util.ArrayList.<init>(ArrayList.java:112)
    [mxmlc]     at macromedia.asc.util.ObjectList.<init>(ObjectList.java:30)
    [mxmlc]     at macromedia.asc.parser.ArgumentListNode.<init>(ArgumentListNode.java:30)
    [mxmlc]     at macromedia.asc.parser.NodeFactory.argumentList(NodeFactory.java:116)
    [mxmlc]     at macromedia.asc.parser.NodeFactory.argumentList(NodeFactory.java:97)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.generateBinding(ImplementationGenerator.java:563)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.generateBindingsSetupFunction(ImplementationGenerator.java:864)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.generateBindingsSetup(ImplementationGenerator.java:813)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.generateInitializerSupportDefs(ImplementationGenerator.java:1813)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.generateClassDefinition(ImplementationGenerator.java:1005)
    [mxmlc]     at flex2.compiler.mxml.ImplementationGenerator.<init>(ImplementationGenerator.java:201)
    [mxmlc]     at flex2.compiler.mxml.ImplementationCompiler.generateImplementationAST(ImplementationCompiler.java:498)
    [mxmlc]     at flex2.compiler.mxml.ImplementationCompiler.parse1(ImplementationCompiler.java:196)
    [mxmlc]     at flex2.compiler.mxml.MxmlCompiler.parse1(MxmlCompiler.java:168)
    [mxmlc]     at flex2.compiler.CompilerAPI.parse1(CompilerAPI.java:2851)
    [mxmlc]     at flex2.compiler.CompilerAPI.parse1(CompilerAPI.java:2804)
    [mxmlc]     at flex2.compiler.CompilerAPI.batch2(CompilerAPI.java:446)
    [mxmlc]     at flex2.compiler.CompilerAPI.batch(CompilerAPI.java:1274)
    [mxmlc]     at flex2.compiler.CompilerAPI.compile(CompilerAPI.java:1488)
    [mxmlc]     at flex2.compiler.CompilerAPI.compile(CompilerAPI.java:1375)
    [mxmlc]     at flex2.tools.Mxmlc.mxmlc(Mxmlc.java:282)
    [mxmlc]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [mxmlc]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [mxmlc]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [mxmlc]     at java.lang.reflect.Method.invoke(Method.java:597)
    [mxmlc]     at flex.ant.FlexTask.executeInProcess(FlexTask.java:280)
    [mxmlc]     at flex.ant.FlexTask.execute(FlexTask.java:225)
    [mxmlc]     at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
    [mxmlc]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [mxmlc]     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [mxmlc]     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [mxmlc]     at java.lang.reflect.Method.invoke(Method.java:597)

BUILD FAILED
/src/build.xml:49: mxmlc task failed
+3  A: 

Give the Java-VM more heap-space, e.g.

java -Xmx1024M

or whatever you need :-). Under Linux (and probably other Unixes), that could do the trick with the ant binary:

ANT_OPTS="-Xmx1024M" ant 
Johannes Weiß
Thanks. looks like that worked but only when I bumped it up to 4GB!
Mims H. Wright