подключение к mysql дБ из трубопровода Дженкинса не нарушается

Question

У меня установлен Jenkins v2.219 (работает в docker, если это имеет значение) и установлено iv'e:

Плагин базы данных v1.5

MySQL Плагин базы данных v1. 3

Я создал самый простой конвейер для проверки соединения с БД, и он не работает. Мой конвейер:

import groovy.sql.Sql
node { 
    Class.forName("com.mysql.jdbc.Driver")
    def sql = Sql.newInstance("jdbc:mysql://<mysql_db_host>:3306/<db_name>", "myuser","mypass", "com.mysql.jdbc.Driver")
    sql.execute "SELECT * FROM table"   
}

И когда я запускаю его, я получаю:

Rebuilds build #47
Running in Durability level: MAX_SURVIVABILITY
Running on Jenkins in /var/jenkins_home/workspace/pipeline_playground
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:419)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    at org.eclipse.jetty.webapp.WebAppClassLoader.loadClass(WebAppClassLoader.java:543)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    at org.codehaus.groovy.runtime.callsite.CallSiteClassLoader.loadClass(CallSiteClassLoader.java:54)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:352)
    at org.codehaus.groovy.reflection.ClassLoaderForClassArtifacts.loadClass(ClassLoaderForClassArtifacts.java:60)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at java_lang_Class$forName$1.callStatic(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:56)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:194)
    at org.kohsuke.groovy.sandbox.impl.Checker$2.call(Checker.java:191)
    at org.kohsuke.groovy.sandbox.GroovyInterceptor.onStaticCall(GroovyInterceptor.java:35)
    at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onStaticCall(SandboxInterceptor.java:186)
    at org.kohsuke.groovy.sandbox.impl.Checker$2.call(Checker.java:189)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedStaticCall(Checker.java:193)
    at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:98)
    at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:17)
    at WorkflowScript.run(WorkflowScript:3)
    at ___cps.transform___(Native Method)
    at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:86)
    at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:113)
    at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:83)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
    at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
    at com.cloudbees.groovy.cps.Next.step(Next.java:83)
    at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:174)
    at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:163)
    at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:129)
    at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:268)
    at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:163)
    at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
    at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
    at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:185)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:405)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$400(CpsThreadGroup.java:96)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:317)
    at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:281)
    at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:131)
    at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
    at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Finished: FAILURE

Я также попытался запустить его без: "Class.forName (" com. mysql .jdb c .Driver ")", который дал мне "java. sql .SQLException: не найден подходящий драйвер для ..."

ОБНОВЛЕНИЕ:

кстати, я увидеть:

база данных- mysql .jar, mysql -connector- java -8.0.13.jar, protobuf- java -3.6.1.jar

по адресу: / plugins / database-mysql / WEB-INF / lib