#!groovy
node{
    stage("build jobs"){
        ws{
                git poll: true,  credentialsId: 'xxxxx', url: 'ssh://git@aaaaa.cc.xxxxxx.com:/xxx/xxx-xxxx-xxxxx.git'
                checkout scm
                jobDsl(removedJobAction: 'DISABLE', removedViewAction: 'DELETE', targets: 'jobs/*.groovy', unstableOnDeprecation: true)
            }
    }
}

hudson.FilePath workspace = hudson.model.Executor.currentExecutor().getCurrentWorkspace()

Processing DSL script pipeline.groovy
java.lang.NullPointerException: Cannot invoke method getCurrentWorkspace() on null object
    at org.codehaus.groovy.runtime.NullObject.invokeMethod(NullObject.java:91)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:48)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:35)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:117)
    at pipeline.run(pipeline.groovy:1)
    at pipeline$run.call(Unknown Source)