OpenCLProbeLibrary.isValid() can fail if called before static block in JavaCL is executed

[jxb532]

Between version 1.0.0-RC2 and 1.0.0-RC4 the following lines were moved from the static block in OpenCLProbeLibrary to the static block in JavaCL:

BridJ.setNativeLibraryActualName("OpenCLProbe", "OpenCL");
BridJ.register();

In RC4 it's possible to call OpenCLProbeLibrary.isValid() before the static block is executed in JavaCL, meaning the call to isValid() will fail. Nothing in isValid() guarantees the initialization of JavaCL.

Can be reproduced by:

public class IsValidTest {
	public static void main(String[] args) {
		OpenCLProbeLibrary.isValid(); // Returns false
	}
}

public class IsValidTest {
	public static void main(String[] args) {
		new JavaCL(); // Force the static initialization of JavaCL
		OpenCLProbeLibrary.isValid(); // Returns true
	}
}