topic Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ? in Alfresco Forum

When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

sudheer_marredd — Fri, 26 Jan 2018 02:35:20 GMT

while creating a process instacne using runtimeService.startProcessInstanceByID(processDefinitionID,processVariableMap) where one of the variable in the map is like below[{"taskTitle":"Fund Manager Review","FundName":"BlueChip Fund"}]I am getting an error like "could not find a variable type to seri

Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

Anonymous — Fri, 26 Jan 2018 11:52:28 GMT

Does the class that you pass implement java.io.Serializable interface?

Activiti/DefaultVariableTypes.java at 5.x · Activiti/Activiti · GitHub

Activiti/SerializableType.java at 5.x · Activiti/Activiti · GitHub

Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

sudheer_marredd — Fri, 26 Jan 2018 13:06:05 GMT

Thanks for your reply.

Yes... It does implement Serializable.

The other interesting thing is, when i make a REST call with the same payload.. I am able to initiate the process.

but when I use the Java method(runtimeService.startProcessInstanceById()), I am facing the above issue.

Please let me know if you need further info.

Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

Anonymous — Sun, 28 Jan 2018 12:26:02 GMT

Please share the code that is generating the value of the variable.

Also, please tell me the version of Activiti Engine you are using.

Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

sudheer_marredd — Tue, 30 Jan 2018 07:48:42 GMT

daisuke-yoshimoto _‌ I am using 5.22.0 version of Activiti Community Version.

My Variable is something like this,

My sample variable looks like this,

[{
"taskName": "TestTask",
"taskPriority": "34"
}]

Re: When I am trying to create a process instance by passing some variables, where a variable is an array of JSON - I am getting an exception saying that "couldn't find a variable type that is able to serialize" . Any suggestions on this please ?

sudheer_marredd — Tue, 30 Jan 2018 14:56:22 GMT

I resolved this issue by adding a Custom Variable type to the processEngine. In my case It is of JsonType.

Thank you for your inputs.