Jenkins groovy 正则表达式匹配字符串:错误:java.io.NotSerializableException:java.util.regex.Matcher

I'm trying to get the matched string from a regex in groovy. The matched string prints to the console without problems, but when I try use the matched string in a git command I get the following error:

Err: Incremental Build failed with Error: java.io.NotSerializableException: java.util.regex.Matcher

代码如下:

                def binaryName = "298_application_V2_00_Build_07.hex"

                def matches = (binaryName =~ /(V)(d+)(_)(d+)(_)(Build)(_)(d+)/)
                versionTag = ""+matches[0].getAt(0)                 
                echo "${matches}"
                echo "$versionTag"
                bat("git tag $versionTag")
                bat("git push origin --tags")

如何从正则表达式中获取匹配的字符串?

@NonCPS
String getVersion(String binaryName) {
  def matches = (binaryName =~ /(V)(d+)(_)(d+)(_)(Build)(_)(d+)/)
  versionTag = ""+matches[0].getAt(0)
  versionTag
}