Error running remote integration tests on SDK 6.2.4

[Pavel Baranchikov]

WWhile executing remote tests, I'm experiencing the error, listed below.

It is both reproducible by running atlas-integration-test or running manually

atlas-mvn -f stash-eol-check/pom.xml ... com.atlassian.maven.plugins:maven-amps-dispatcher-plugin:remote-test

Tries to debug showed me, that JSON received from the server side could not be deserialized on the client side.

I'm using SDK 6.2.4

com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected an int but was BEGIN_OBJECT at line 1 column 26 path $.testResult.fCount
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:221)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:117)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:217)
    at com.google.gson.Gson.fromJson(Gson.java:861)
    at com.google.gson.Gson.fromJson(Gson.java:826)
    at com.google.gson.Gson.fromJson(Gson.java:775)
    at com.google.gson.Gson.fromJson(Gson.java:747)
    at com.atlassian.plugins.osgi.test.AtlassianPluginsTestRunner.runViaRestCall(AtlassianPluginsTestRunner.java:118)
    at com.atlassian.plugins.osgi.test.AtlassianPluginsTestRunner.run(AtlassianPluginsTestRunner.java:75)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.IllegalStateException: Expected an int but was BEGIN_OBJECT at line 1 column 26 path $.testResult.fCount
    at com.google.gson.stream.JsonReader.nextInt(JsonReader.java:1201)
    at com.google.gson.internal.bind.TypeAdapters$8.read(TypeAdapters.java:263)
    at com.google.gson.internal.bind.TypeAdapters$8.read(TypeAdapters.java:260)
    at com.google.gson.TypeAdapter$1.read(TypeAdapter.java:199)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:117)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:217)
    ... 14 more

[James Wall]

I ran into this problem when I tried to add the Google GSON library to my project as a dependency. I tried both 2.8 and 2.7 and they gave me this exact same error message.
I corrected it by changing the GSON library version from 2.7 to "2.2.2-atlassian-1", and cleaning and recompiling my project.