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  1. JBoss Enterprise Application Platform
  2. JBEAP-21265

[GSS](7.4.z) WFLY-14561 - Incorrect deserialization using getValue method

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      Don't use the parser getValue method in the deserializer. Use getObject or getArray instead.

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      Don't use the parser getValue method in the deserializer. Use getObject or getArray instead.
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      • Obtain the yasson_test.zip in the upstream issue 342 .
      • Just run the tests:
      $ mvn test
...
-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running yasson.test.RootTest
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.167 sec <<< FAILURE!
test(yasson.test.RootTest)  Time elapsed: 0.079 sec  <<< FAILURE!
java.lang.AssertionError: expected:<string> but was:<null>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:834)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:144)
	at yasson.test.RootTest.test(RootTest.java:21)
...
      Show
      Obtain the yasson_test.zip in the upstream issue 342 . Just run the tests: $ mvn test ... ------------------------------------------------------- T E S T S ------------------------------------------------------- Running yasson.test.RootTest Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.167 sec <<< FAILURE! test(yasson.test.RootTest) Time elapsed: 0.079 sec <<< FAILURE! java.lang.AssertionError: expected:<string> but was:<null> at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.failNotEquals(Assert.java:834) at org.junit.Assert.assertEquals(Assert.java:118) at org.junit.Assert.assertEquals(Assert.java:144) at yasson.test.RootTest.test(RootTest.java:21) ...

      It's the same issue explained in the upstream yasson project: issue 342 . If a custom deserializer uses the getValue method the level is not updated in the same way that happens when getObject or getArray methods are executed. That method javadoc says:

      Returns a JsonValue at the current parser position. If the parser state is START_ARRAY, the behavior is the same as getArray(). If the parser state is START_OBJECT, the behavior is the same as getObject(). For all other cases, if applicable, the JSON value is read and returned.

      So it's clear that the getValue method should act exactly in the same way of the other methods in case of an array or an object.

              rhn-support-rmartinc Ricardo Martin Camarero
              rhn-support-ivassile Ilia Vassilev
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                Resolved: