TypeEqualsToNull.java 文件源码

public static void main(final String[] args) {
    final AudioFileFormat.Type type;
    try {
        type = new AudioFileFormat.Type(null, null);
    } catch (final Exception ignored) {
        // behaviour of null is not specified so ignore possible exceptions
        return;
    }
    final Object stub = new Object() {
        @Override
        public String toString() {
            return null;
        }
    };
    if (stub.equals(type) || type.equals(stub)) {
        throw new RuntimeException("Should not be equal");
    }
}