After the JSON > XML transformation with the 'Apply JSON Transformation' assertion, the country 'TÜRKIYE' is transformed into 'T?RKIYE'
Container API gateway 10.1, 11.x
The container gateway provides the environment variable "EXTRA_JAVA_ARGS", this variable defines any JVM properties to be added.
The default charset of the JVM is determined at the JVM startup and depends on the charset and locale of the underlying operating system. This can be overridden by setting the system property 'file.encoding' i.e "-Dfile.encoding=UTF8".
When this flag is added '-Dfile.encoding=UTF8' before starting the container gateway, the issue no longer occurs.