File.renameTo() doesn't behave the same way on Win32 and Solaris.
The following simple test shows the problem.

import java.io.*;

public class test {
    public static void main(String argv[]) throws IOException {
        File tmpFile = File.createTempFile("tmp");
        System.out.println(tmpFile);
        File inputFile = new File("junk");
        System.out.println(inputFile);
	// another bug here, see 4017593
	// win32 needs a delete() before rename
        inputFile.delete();
        System.out.println(tmpFile.renameTo(inputFile));
    }
}


On Solaris, if property java.io.tmpdir is set to another mounted
filesystem other than the current one , or the user specifies 
that explicitly when creating the tmpFile, the renameTo() call
will fail.

On Win32, the test works as expected.