Hi Filip,
ok then let’s focus on the Timer Intermediate event. I created the following workflow:
where the to service tasks simply print out the current time, the timer intermediate event has the time duration set PT10S.
My expectation would be to see the current time and then current time + 10s. Is it sensible?
What I get is the following, so only one of the two tasks is executed and I see it immediately.
Found process definition : My process
2019-06-11T12:54:02.548356600Z
Could you please tell we what am I doing wrong here and how to get the desired behaviour?
Thanks a lot in advanvce for your help! 
I attach the complete code for reference
WorkflowExecutor.java
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.HashMap;
import java.util.Map;
import org.activiti.engine.ProcessEngine;
import org.activiti.engine.ProcessEngineConfiguration;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.RuntimeService;
import org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration;
import org.activiti.engine.repository.Deployment;
import org.activiti.engine.repository.ProcessDefinition;
import org.activiti.engine.runtime.ProcessInstance;
public class WorkflowExecutor {
private static String filename = "src/main/resources/diagrams/DelayDiagram.bpmn";
public static void main(String[] args) throws FileNotFoundException {
ProcessEngineConfiguration cfg = new StandaloneProcessEngineConfiguration()
.setJdbcUrl("jdbc:h2:mem:flowable;DB_CLOSE_DELAY=-1").setJdbcUsername("sa")
.setJdbcPassword("").setJdbcDriver("org.h2.Driver")
.setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
ProcessEngine processEngine = cfg.buildProcessEngine();
RepositoryService repositoryService = processEngine.getRepositoryService();
Deployment deployment = repositoryService.createDeployment()
.addInputStream("myProcess.bpmn20.xml", new FileInputStream(filename)).deploy();
// .addClasspathResource("SimpleProcess.bpmn").deploy();
ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
.deploymentId(deployment.getId()).singleResult();
System.out.println("Found process definition : " + processDefinition.getName());
// Start process
RuntimeService runtimeService = processEngine.getRuntimeService();
Map<String, Object> variables = new HashMap<String, Object>();
ProcessInstance processInstance =
runtimeService.startProcessInstanceByKey("myProcess", variables);
}
}
DelayTask.java
import java.time.Instant;
import org.activiti.engine.delegate.DelegateExecution;
import org.activiti.engine.delegate.JavaDelegate;
public class DelayTask implements JavaDelegate {
@Override
public void execute(DelegateExecution execution) throws Exception {
System.out.println(Instant.now());
}
}
DelayDiagram.bpmn
<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
<process id="myProcess" name="My process" isExecutable="true">
<serviceTask id="servicetask1" name="Task1" activiti:class="apackage.DelayTask"></serviceTask>
<serviceTask id="servicetask2" name="Task2" activiti:class="apackage.DelayTask"></serviceTask>
<intermediateCatchEvent id="timerintermediatecatchevent1" name="TimerCatchEvent">
<timerEventDefinition>
<timeDuration>PT10S</timeDuration>
</timerEventDefinition>
</intermediateCatchEvent>
<sequenceFlow id="flow1" sourceRef="servicetask1" targetRef="timerintermediatecatchevent1"></sequenceFlow>
<sequenceFlow id="flow2" sourceRef="timerintermediatecatchevent1" targetRef="servicetask2"></sequenceFlow>
<startEvent id="startevent1" name="Start"></startEvent>
<sequenceFlow id="flow3" sourceRef="startevent1" targetRef="servicetask1"></sequenceFlow>
<endEvent id="endevent1" name="End"></endEvent>
<sequenceFlow id="flow4" sourceRef="servicetask2" targetRef="endevent1"></sequenceFlow>
</process>
<bpmndi:BPMNDiagram id="BPMNDiagram_myProcess">
<bpmndi:BPMNPlane bpmnElement="myProcess" id="BPMNPlane_myProcess">
<bpmndi:BPMNShape bpmnElement="servicetask1" id="BPMNShape_servicetask1">
<omgdc:Bounds height="55.0" width="105.0" x="104.0" y="20.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="servicetask2" id="BPMNShape_servicetask2">
<omgdc:Bounds height="55.0" width="105.0" x="320.0" y="20.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="timerintermediatecatchevent1" id="BPMNShape_timerintermediatecatchevent1">
<omgdc:Bounds height="35.0" width="35.0" x="240.0" y="30.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="startevent1" id="BPMNShape_startevent1">
<omgdc:Bounds height="35.0" width="35.0" x="24.0" y="30.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNShape bpmnElement="endevent1" id="BPMNShape_endevent1">
<omgdc:Bounds height="35.0" width="35.0" x="460.0" y="30.0"></omgdc:Bounds>
</bpmndi:BPMNShape>
<bpmndi:BPMNEdge bpmnElement="flow1" id="BPMNEdge_flow1">
<omgdi:waypoint x="209.0" y="47.0"></omgdi:waypoint>
<omgdi:waypoint x="240.0" y="47.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow2" id="BPMNEdge_flow2">
<omgdi:waypoint x="275.0" y="47.0"></omgdi:waypoint>
<omgdi:waypoint x="320.0" y="47.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
<omgdi:waypoint x="59.0" y="47.0"></omgdi:waypoint>
<omgdi:waypoint x="104.0" y="47.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
<bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
<omgdi:waypoint x="425.0" y="47.0"></omgdi:waypoint>
<omgdi:waypoint x="460.0" y="47.0"></omgdi:waypoint>
</bpmndi:BPMNEdge>
</bpmndi:BPMNPlane>
</bpmndi:BPMNDiagram>
</definitions>