java.lang.IllegalArgumentException

list.set: java.util.ArrayList is not a supported property type.

Samebug tips0

We couldn't find tips for this exception.

Don't give up yet. Paste your full stack trace to get a solution.

Solutions on the web38

  • via Unknown by Sébastien Tromp,
  • via Stack Overflow by ertemplin
    ,
  • via Stack Overflow by Rosarch
    ,
  • Stack trace

    • java.lang.IllegalArgumentException: list.set: java.util.ArrayList is not a supported property type. at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedSingleValue(DataTypeUtils.java:184) at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedValue(DataTypeUtils.java:149) at com.google.appengine.api.datastore.DataTypeUtils.checkSupportedValue(DataTypeUtils.java:123) at com.google.appengine.api.datastore.Entity.setProperty(Entity.java:319) at com.google.code.twig.standard.StandardEncodeCommand.transferProperties(StandardEncodeCommand.java:45) at com.google.code.twig.standard.StandardCommonStoreCommand.instanceToEntity(StandardCommonStoreCommand.java:294) at com.google.code.twig.standard.StandardSingleStoreCommand.now(StandardSingleStoreCommand.java:58) at com.google.code.twig.standard.TranslatorObjectDatastore.store(TranslatorObjectDatastore.java:161) at com.fiveorbs.server.access.embedded.TestEmbeddedPersistence.testComplexEmbeddedSets(TestEmbeddedPersistence.java:46)

    Write tip

    You have a different solution? A short tip here would help you and many other users who saw this issue last week.

    Users with the same issue

    Plato2000Plato2000
    2 times, last one