GWT Compiler fails with 'Too many open files' error / internal compiler error

Hi,

When I compile my gwt project via ant I regularly get the following
error
'[java] Invoking
com.google.gwt.dev.javac.StandardGeneratorContext@28e4f4ad
[java] [ERROR] Generator
'com.google.gwt.uibinder.rebind.UiBinderGenerator' threw threw an
exception while rebinding (...)
[java] java.lang.RuntimeException: java.io.FileNotFoundException:
(...)web/core/client/ui/LanguageBarPanel.ui.xml (Too many open
files)'
[java] at
com.google.gwt.uibinder.rebind.W3cDomHelper.documentFor(W3cDomHelper.java:
100)
[java] at
com.google.gwt.uibinder.rebind.UiBinderGenerator.getW3cDoc(UiBinderGenerator.java:
147)
[java] at
com.google.gwt.uibinder.rebind.UiBinderGenerator.generateOnce(UiBinderGenerator.java:
124)
[java] at
com.google.gwt.uibinder.rebind.UiBinderGenerator.generate(UiBinderGenerator.java:
105)
[java] at
com.google.gwt.dev.javac.StandardGeneratorContext.runGenerator(StandardGeneratorContext.java:
418)
[java] at
com.google.gwt.dev.cfg.RuleGenerateWith.realize(RuleGenerateWith.java:
38)
[java] at com.google.gwt.dev.shell.StandardRebindOracle
$Rebinder.tryRebind(StandardRebindOracle.java:108)
[java] at com.google.gwt.dev.shell.StandardRebindOracle
$Rebinder.rebind(StandardRebindOracle.java:54)
[java] at
com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:
154)
[java] at
com.google.gwt.dev.shell.StandardRebindOracle.rebind(StandardRebindOracle.java:
143)
[java] at com.google.gwt.dev.Precompile
$DistillerRebindPermutationOracle.getAllPossibleRebindAnswers(Precompile.java:
317)
[java] at
com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.doFindAdditionalTypesUsingRebinds(WebModeCompilerFrontEnd.java:
95)
[java] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox
$CompilerImpl.process(AbstractCompiler.java:200)
[java] at
org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:444)
[java] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox
$CompilerImpl.compile(AbstractCompiler.java:123)
[java] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox
$CompilerImpl.compile(AbstractCompiler.java:234)
[java] at com.google.gwt.dev.jdt.AbstractCompiler$Sandbox
$CompilerImpl.access$200(AbstractCompiler.java:109)
[java] at
com.google.gwt.dev.jdt.AbstractCompiler.compile(AbstractCompiler.java:
522)
[java] at
com.google.gwt.dev.jdt.BasicWebModeCompiler.getCompilationUnitDeclarations(BasicWebModeCompiler.java:
112)
[java] at
com.google.gwt.dev.jdt.WebModeCompilerFrontEnd.getCompilationUnitDeclarations(WebModeCompilerFrontEnd.java:
47)
[java] at
com.google.gwt.dev.jjs.JavaToJavaScriptCompiler.precompile(JavaToJavaScriptCompiler.java:
422)
[java] at
com.google.gwt.dev.jjs.JavaScriptCompiler.precompile(JavaScriptCompiler.java:
32)
[java] at
com.google.gwt.dev.Precompile.precompile(Precompile.java:522)
[java] at
com.google.gwt.dev.Precompile.precompile(Precompile.java:414)
[java] at com.google.gwt.dev.Compiler.run(Compiler.java:201)
[java] at com.google.gwt.dev.Compiler$1.run(Compiler.java:152)
[java] at
com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:87)
[java] at
com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:
81)
[java] at com.google.gwt.dev.Compiler.main(Compiler.java:159)

followed by (probably subsequent errors) like the following
(truncated):

[java] java.lang.NullPointerException
[java] at com.google.gwt.dev.util.Util.copyNoClose(Util.java:
259)
[java] at com.google.gwt.dev.util.Util.copy(Util.java:180)
[java] at
com.google.gwt.dev.util.Util.readStreamAsString(Util.java:755)
[java] at com.google.gwt.dev.javac.Shared.readSource(Shared.java:
150)

Does anyone have similar problems or is this a known bug? Is there any
more information I should provide that could help?

thanks for any help,

Dennis

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