Im  using extended choice parameter plugin with json input but this plugin return the error:Null pointer exception

Ex: 5 * * * *%v1={'option':'test','tool':'val'}

Error:
FATAL: null
java.lang.NullPointerException
at hudson.model.ParametersAction.filter(ParametersAction.java:328)
at hudson.model.ParametersAction.getParameters(ParametersAction.java:183)
at hudson.model.ParametersAction.iterator(ParametersAction.java:178)
at hudson.model.AbstractBuild.getSensitiveBuildVariables(AbstractBuild.java:957)
at org.jenkinsci.plugins.envinject.util.RunHelper.getSensitiveBuildVariables(RunHelper.java:55)
at org.jenkinsci.plugins.envinject.service.EnvInjectActionSetter.addEnvVarsToRun(EnvInjectActionSetter.java:69)
at org.jenkinsci.plugins.envinject.EnvInjectListener.loadEnvironmentVariablesNode(EnvInjectListener.java:83)
at org.jenkinsci.plugins.envinject.EnvInjectListener.setUpEnvironment(EnvInjectListener.java:44)
at hudson.model.AbstractBuild$AbstractBuildExecution.createLauncher(AbstractBuild.java:542)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:462)
at hudson.model.Run.execute(Run.java:1724)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:421)
Finished: FAILURE