Upgrade camunda from 7.11 to 7.15

pbaddi · July 8, 2021, 9:29am

Hi,

I am upgrading camunda from 7.11.0 to 7.15.0. But I am unable to start the process engine…Getting below error.

2021-07-08 14:45:42,814 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool – 68) MSC000001: Failed to start service org.camunda.bpm.platform.process-engine.default: org.jboss.msc.service.StartException in service org.camunda.bpm.platform.process-engine.default: java.lang.NoClassDefFoundError: org/camunda/connect/spi/Connector
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController$1.run(MscManagedProcessEngineController.java:101)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.base/java.lang.Thread.run(Thread.java:834)
at org.jboss.threads@2.3.3.Final//org.jboss.threads.JBossThread.run(JBossThread.java:485)
Caused by: java.lang.NoClassDefFoundError: org/camunda/connect/spi/Connector
at java.base/java.lang.Class.getDeclaredMethods0(Native Method)
at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3166)
at java.base/java.lang.Class.privateGetPublicMethods(Class.java:3191)
at java.base/java.lang.Class.privateGetPublicMethods(Class.java:3197)
at java.base/java.lang.Class.privateGetPublicMethods(Class.java:3197)
at java.base/java.lang.Class.getMethods(Class.java:1904)
at org.camunda.bpm.camunda-engine@7.15.0//org.camunda.bpm.engine.impl.util.ReflectUtil.getSingleSetter(ReflectUtil.java:285)
at org.camunda.bpm.camunda-engine@7.15.0//org.camunda.bpm.container.impl.metadata.PropertyHelper.applyProperty(PropertyHelper.java:81)
at org.camunda.bpm.camunda-engine@7.15.0//org.camunda.bpm.container.impl.metadata.PropertyHelper.applyProperties(PropertyHelper.java:110)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController.startProcessEngine(MscManagedProcessEngineController.java:177)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController$2.run(MscManagedProcessEngineController.java:135)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController$2.run(MscManagedProcessEngineController.java:133)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.util.Tccl.runWithTccl(Tccl.java:54)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.util.Tccl.runUnderClassloader(Tccl.java:46)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController.startInternal(MscManagedProcessEngineController.java:133)
at org.camunda.bpm.wildfly.camunda-wildfly-subsystem@7.15.0//org.camunda.bpm.container.impl.jboss.service.MscManagedProcessEngineController$1.run(MscManagedProcessEngineController.java:94)
… 8 more
Caused by: java.lang.ClassNotFoundException: org.camunda.connect.spi.Connector from [Module “org.camunda.bpm.camunda-engine” version 7.15.0 from local module loader @42f48531 (finder: local module finder @a776e (roots: C:\Users\pbaddi\SMP\wildfly-18.0.1-7.Final\modules,C:\Users\pbaddi\SMP\wildfly-18.0.1-7.Final\modules\system\layers\base,C:\Users\pbaddi\SMP\wildfly-18.0.1-7.Final\modules\system\add-ons\keycloak))]
at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:255)
at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:410)
at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398)
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
… 24 more

But i can see this class in wildfly-18.0.1-7.Final\modules\org\camunda\connect\camunda-connect-core\main\camunda-connect-core-1.5.2.jar\org\camunda\connect\spi.

In standalone.xml, structure of process engine looks like this.

<subsystem xmlns="urn:org.camunda.bpm.jboss:1.1">
            <process-engines>
                <process-engine name="default" default="true">
			        <datasource>java:/jdbc/Modeling</datasource>
                    <history-level>audit</history-level>
                    <properties>
            <property name="jobExecutorAcquisitionName">default </property>
            <property name="isAutoSchemaUpdate">false </property>
            <property name="authorizationEnabled">true</property>
            <property name="jobExecutorDeploymentAware">false</property>
            <property name="jobExecutorActivate">false</property>
            <property name="defaultSerializationFormat">application/json</property>
            <property name="authorizationCheckRevokes">never</property>
            <property name="defaultUserPermissionNameForTask">TASK_WORK</property>
            <property name="dbMetricsReporterActivate"> false</property>
</properties>
                </process-engine>
            </process-engines>
            <job-executor>
        <core-threads>200</core-threads>
        <max-threads>700</max-threads>
        <queue-length>200</queue-length>
        <keepalive-time>100</keepalive-time>
        <job-acquisitions>
            <job-acquisition name="default">
                <acquisition-strategy>SEQUENTIAL</acquisition-strategy>
                <properties>
                    <property name="lockTimeInMillis">300000 </property>
                    <property name="waitTimeInMillis"> 5000  </property>
                    <property name="maxJobsPerAcquisition"> 1000</property>
                </properties>
            </job-acquisition>
        </job-acquisitions>
</job-executor>
 </subsystem>

I tried adding this plugin in pom.xml, but not working

 <plugin>  
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-war-plugin</artifactId>
          <configuration>
             <archive>
                <manifestEntries>
                   <Dependencies>org.camunda.bpm.camunda-engine</Dependencies>
                </manifestEntries>
             </archive>
          </configuration>
        </plugin>

Could some one help to figure out what is issue.

Regards,
Poornima

pbaddi · July 9, 2021, 11:43am

Could some one help me on this issue.

nikola.koevski · July 12, 2021, 9:10am

Hi @pbaddi,

Can you format the logs to make them more readable? You can take a look at the Style Guide?. It’ll help you understand how to format code correctly and also help you create questions that are easy to understand and also easier to answer

Can you describe the steps that you performed when you upgraded from 7.11 to 7.15?
Did you follow the instructions on the following links?
- Update from 7.11 to 7.12 | docs.camunda.org
- Update a JBoss/Wildfly Installation from 7.11 to 7.12 | docs.camunda.org

Best,
Nikola