Details
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Bug
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Status: Resolved
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Critical
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Resolution: Fixed
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1.9.1, 2.0.0
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None
Description
JSON deserialization fails for null values in "inner collections/maps".
The adapters in NullFilteringTypeAdapterFactories are missing check for JsonToken.NULL
Sample Java type, which can hit the problem:
Map<String, List<Map<String, String>>>
and JSON to reproduce the issue:
{"value":[null]}
or another one:
{"value":null}
The stacktrace then can look like:
21:50:57.824 [main] ERROR org.jclouds.http.functions.ParseJson - Error parsing input: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was NULL at line 1 column 3791 path $.NetworkSettings.Ports. com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was NULL at line 1 column 3791 path $.NetworkSettings.Ports. at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:190) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$ParameterReader.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:272) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:184) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at com.google.gson.Gson.fromJson(Gson.java:810) ~[gson-2.3.1.jar:na] at com.google.gson.Gson.fromJson(Gson.java:775) ~[gson-2.3.1.jar:na] at com.google.gson.Gson.fromJson(Gson.java:724) ~[gson-2.3.1.jar:na] at org.jclouds.json.internal.GsonWrapper.fromJson(GsonWrapper.java:42) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:83) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:77) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:62) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:42) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.rest.internal.InvokeHttpMethod.invoke(InvokeHttpMethod.java:90) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:73) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:44) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.reflect.FunctionalReflection$FunctionalInvocationHandler.handleInvocation(FunctionalReflection.java:117) [jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:87) [guava-18.0.jar:na] at com.sun.proxy.$Proxy77.inspectContainer(Unknown Source) [na:na] at org.jclouds.docker.compute.strategy.DockerComputeServiceAdapter.listNodes(DockerComputeServiceAdapter.java:214) [docker-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.compute.strategy.impl.AdaptingComputeServiceStrategies.listDetailsOnNodesMatching(AdaptingComputeServiceStrategies.java:122) [jclouds-compute-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.compute.strategy.impl.AdaptingComputeServiceStrategies.listNodes(AdaptingComputeServiceStrategies.java:112) [jclouds-compute-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.compute.strategy.impl.CreateNodesWithGroupEncodedIntoNameThenAddToSet.getNextNames(CreateNodesWithGroupEncodedIntoNameThenAddToSet.java:192) [jclouds-compute-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.compute.strategy.impl.CreateNodesWithGroupEncodedIntoNameThenAddToSet.execute(CreateNodesWithGroupEncodedIntoNameThenAddToSet.java:121) [jclouds-compute-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.compute.internal.BaseComputeService.createNodesInGroup(BaseComputeService.java:210) [jclouds-compute-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] <cut> Caused by: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was NULL at line 1 column 3791 path $.NetworkSettings.Ports. at com.google.gson.stream.JsonReader.beginArray(JsonReader.java:350) ~[gson-2.3.1.jar:na] at org.jclouds.json.internal.NullFilteringTypeAdapterFactories$IterableTypeAdapter.readAndBuild(NullFilteringTypeAdapterFactories.java:88) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.NullFilteringTypeAdapterFactories$IterableTypeAdapter.read(NullFilteringTypeAdapterFactories.java:82) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.NullFilteringTypeAdapterFactories$IterableTypeAdapter.read(NullFilteringTypeAdapterFactories.java:61) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.NullFilteringTypeAdapterFactories$MapTypeAdapter.read(NullFilteringTypeAdapterFactories.java:311) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.NullFilteringTypeAdapterFactories$MapTypeAdapter.read(NullFilteringTypeAdapterFactories.java:281) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$ParameterReader.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:272) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] at org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:184) ~[jclouds-core-2.0.0-SNAPSHOT.jar:2.0.0-SNAPSHOT] ... 52 common frames omitted
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