BSON serializer fix

src/main/java/org/mbedsys/jvar/Variant.java

@@ -796,7 +796,7 @@ public abstract class Variant implements Comparable<Object> {
 		}
 		byte[] payloadBytes = payload.toByteArray();
 		ByteArrayOutputStream ret = new ByteArrayOutputStream();
-		write32(ret, payloadBytes.length + 1);
+		write32(ret, payloadBytes.length + 5);
 		ret.write(payloadBytes);
 		ret.write(BSON_TOKEN_END);
 		return ret.toByteArray();

src/main/java/org/mbedsys/jvar/VariantUInt.java

@@ -83,7 +83,7 @@ public class VariantUInt extends VariantNumber {
 
 	@Override
 	public long longValue() {
-		return data;
+		return data & 0xFFFFFFFFL;
 	}
 
 	@Override

src/test/java/Test.java

 import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.IOException;
 
 import org.mbedsys.jvar.Variant;
@@ -7,9 +8,11 @@ import org.mbedsys.jvar.Variant;
 public class Test {
     public static void main(String[] args) {
 		try {
-//			Variant value = Variant.newParser(new FileInputStream("rs/test.json"), Variant.Format.JSON).next();
-			Variant value = Variant.newParser(new FileInputStream("rs/test.bson"), Variant.Format.BSON).next();
+			Variant value = Variant.newParser(new FileInputStream("rs/test.json"), Variant.Format.JSON).next();
+//			Variant value = Variant.newParser(new FileInputStream("rs/test.bson"), Variant.Format.BSON).next();
 //			Variant value = Variant.newParser(new FileInputStream("rs/test.bcon"), Variant.Format.BCON).next();
+			Variant.serializeBCON(new FileOutputStream("rs/test_out.bcon"), value);
+			Variant.serializeBSON(new FileOutputStream("rs/test_out.bson"), value);
 			System.out.println(value);
 		} catch (IOException e) {
 			e.printStackTrace();