intellij idea hangs when editing gradle script with auto import disabled

raw_parameters.each { key, value ->
    def default_name, lowcase, type, additional_import,dst_package_fix
    dst_package_fix=key.replace("","/")
}


every time i input "." in "key.replace(".","/")",the ide hangs and cpu usage jump to 50% or 25%.

raw_parameters is a map