Question: System.initializeSystemClass()

[Ulf Zibis]

Hi,

regarding my project https://java-nio-charset-enhanced.dev.java.net/ I 
am run into a problem:

When System.initializeSystemClass() is opening the the standard I/O 
streams out and err, new PrintStream() creates new StreamEncoder which 
needs to access Charset.defaultCharset().
At this point I get UnsatisfiedLinkError, because my implementation of 
FastCharsetProvider class need to load mapping data from file system via 
getClass().getResourceAsStream(canonicalName+".dat"), and zip library is 
not loaded at this time:

class System {
    ...
    static void initializeSystemClass() {
        ...
        setIn0(new BufferedInputStream(fdIn));
        setOut0(new PrintStream(new BufferedOutputStream(fdOut, 128), 
true));
        setErr0(new PrintStream(new BufferedOutputStream(fdErr, 128), 
true));

        // Load the zip library now in order to keep java.util.zip.ZipFile
        // from trying to use itself to load this library later.
        loadLibrary("zip");
        ...
    }
    ...
}

MY QUESTION:
Is there any risk, to load zip library before opening the standard I/O 
streams out and err ?

class System {
    ...
    static void initializeSystemClass() {
        ...
        setIn0(new BufferedInputStream(fdIn));

        // PrintStream() creates new sun.io.cs.StreamEncoder which
        // needs to load charset mapping data from rt.jar via
        // sun.io.cs.FastCharsetProvider#getClass().getResourceAsStream()
        // So load the zip library now in order to keep 
java.util.zip.ZipFile
        // from trying to use itself to load this library later.
        loadLibrary("zip");

        setOut0(new PrintStream(new BufferedOutputStream(fdOut, 128), 
true));
        setErr0(new PrintStream(new BufferedOutputStream(fdErr, 128), 
true));
        ...
    }
    ...
}

The only problem I see is, that if loadLibrary("zip") fails, the 
exception messages can't be propagated to standard err stream.

What you guys do you think?

-Ulf