I'm building an AIR app and am using Java to offload some heavy duty work to keep Flash responsive. I want to make sure the end user has a version of Java installed the is compatible with the Jar I ship with my AIR app. To do so I use the following (pseudo) code below:
CODE:
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var args:Vector.<String> = new Vector.<String>();
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args.push("-fullversion");
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var info:NativeProcessStartupInfo = new NativeProcessStartupInfo();
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info.executable = javaLocation;
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info.arguments = args;
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javaProcess = new NativeProcess();
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javaProcess.addEventListener(ProgressEvent.STANDARD_OUTPUT_DATA, versionOutputHandler);
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// Fun fact: -fullversion output is considered error data! :s
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javaProcess.addEventListener(ProgressEvent.STANDARD_ERROR_DATA, versionOutputHandler);
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javaProcess.addEventListener(NativeProcessExitEvent.EXIT, versionExitHandler);
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javaProcess.addEventListener(IOErrorEvent.STANDARD_OUTPUT_IO_ERROR, versionErrorHandler);
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javaProcess.addEventListener(IOErrorEvent.STANDARD_ERROR_IO_ERROR, versionErrorHandler);
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javaProcess.start(info);
To my surprise the result of the call to "java -fullversion" is send to the standard error stream and thus triggering the ProgressEvent.STANDARD_ERROR_DATA to be fired.
