Global tag is not allowed: tag:yaml.org,2002:com.example.Snake

When using snakeyaml 2.0, dumping and loading the dumped message runs into an exception:

Global tag is not allowed: tag:yaml.org,2002:com.example.Snake
in 'string', line 1, column 1:
!!com.example.Snake { ...
^
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:304)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:209)
at org.yaml.snakeyaml.composer.Composer.getNode(Composer.java:131)
at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:157)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:178)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:493)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:422)

‌

Test case:

@Test
public void message_customJavaClass() {
    // given    
    Snake message = new Snake();
    message.setMessage("snakeyaml test");
    String serializedMessage = new Yaml().dump(message);

    // when    
    Snake parsedMessage = new Yaml().load(serializedMessage);

    // then    
    assertEquals("snakeyaml test", parsedMessage.getMessage());
}

Snake class:

public class Snake {
    private String message;

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}

As far as I can see this dumping and re-loading should work.

Thanks for you help.

‌

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