*/
package org.opendaylight.controller.sal.common.util;
-public class Arguments {
+public final class Arguments {
private Arguments() {
throw new UnsupportedOperationException("Utility class");
}
-
+
/**
* Checks if value is instance of provided class
- *
- *
+ *
+ *
* @param value Value to check
* @param type Type to check
* @return Reference which was checked
@SuppressWarnings("unchecked")
public static <T> T checkInstanceOf(Object value, Class<T> type) {
if(!type.isInstance(value))
- throw new IllegalArgumentException();
+ throw new IllegalArgumentException(String.format("Value %s is not of type %s", value, type));
return (T) value;
}
}