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java.util.ConcurrentModificationException

masahirotomoda
Champ in-the-making
Champ in-the-making
hi
Im Masahiro Tomoda. Japanese Website Engineer.

Plz teach me about this trouble.

why exception?

[Exception Program]
72:                repositoryService
73:                    .createDeployment()
74:                    .addClasspathResource(file.getName())
75:                    .deploy();

[activity.cfg.xml]
<?xml version='1.0' encoding='UTF-8'?>

<beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://www.springframework.org/schema/beans   http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneProcessEngineConfiguration" >

        <property name="databaseType" value="postgres" />
        <property name="jdbcUrl" value="jdbcSmiley Tongueostgresql://localhost:5432/demo" />
        <property name="jdbcDriver" value="org.postgresql.Driver" />
        <property name="jdbcUsername" value="postgres" />
        <property name="jdbcPassword" value="XXXXXXXX" />

        <property name="databaseSchemaUpdate" value="true" />

       <property name="jobExecutorActivate" value="false" />
       <property name="asyncExecutorEnabled" value="false" />
       <property name="asyncExecutorActivate" value="false" />


        <property name="mailServerHost" value="mail.my-corp.com" />
        <property name="mailServerPort" value="5025" />
    </bean>

</beans>

[Trace log]
INFO  2016-09-30 15:29:24,176 [main] Initializing process engine using configuration 'file:/C:/Users/Masahiro/Documents/eclipse/ws/Activiti/WorkFlowDemo/build/classes/activiti.cfg.xml'
INFO  2016-09-30 15:29:24,178 [main] initializing process engine for resource file:/C:/Users/Masahiro/Documents/eclipse/ws/Activiti/WorkFlowDemo/build/classes/activiti.cfg.xml
2016-09-30 15:29:24,561 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from InputStream resource [resource loaded through InputStream]
DEBUG 2016-09-30 15:29:25,428 [main] initializing datasource to db: jdbcSmiley Tongueostgresql://localhost:5432/demo
DEBUG 2016-09-30 15:29:45,634 [main]

DEBUG 2016-09-30 15:29:45,635 [main] — starting SchemaOperationsProcessEngineBuild ——————————————————–
DEBUG 2016-09-30 15:29:46,078 [main] flush summary: 0 insert, 0 update, 0 delete.
DEBUG 2016-09-30 15:29:46,078 [main] now executing flush…
DEBUG 2016-09-30 15:29:46,078 [main] firing event committing…
DEBUG 2016-09-30 15:29:46,079 [main] committing the ibatis sql session…
DEBUG 2016-09-30 15:29:46,080 [main] firing event committed…
DEBUG 2016-09-30 15:29:46,089 [main] — SchemaOperationsProcessEngineBuild finished ——————————————————–
DEBUG 2016-09-30 15:29:46,089 [main]

INFO  2016-09-30 15:29:46,089 [main] ProcessEngine default created
INFO  2016-09-30 15:29:46,109 [main] initialised process engine default
2016-09-30 15:29:46,111 [main] INFO  jp.ecs.tool.DeploymentProcDef - ##### deploy start!
DEBUG 2016-09-30 15:29:46,153 [main]

DEBUG 2016-09-30 15:29:46,153 [main] — starting DeployCmd ——————————————————–
DEBUG 2016-09-30 15:29:46,157 [main]

DEBUG 2016-09-30 15:29:46,157 [main] — starting GetNextIdBlockCmd ——————————————————–
DEBUG 2016-09-30 15:29:46,232 [main]   update PropertyEntity[name=next.dbid, value=45001]
DEBUG 2016-09-30 15:29:46,232 [main] flush summary: 0 insert, 1 update, 0 delete.
DEBUG 2016-09-30 15:29:46,232 [main] now executing flush…
DEBUG 2016-09-30 15:29:46,232 [main] updating: PropertyEntity[name=next.dbid, value=45001]
DEBUG 2016-09-30 15:29:46,239 [main] firing event committing…
DEBUG 2016-09-30 15:29:46,240 [main] committing the ibatis sql session…
DEBUG 2016-09-30 15:29:46,261 [main] firing event committed…
DEBUG 2016-09-30 15:29:46,262 [main] — GetNextIdBlockCmd finished ——————————————————–
DEBUG 2016-09-30 15:29:46,262 [main]

DEBUG 2016-09-30 15:29:46,263 [main] Processing deployment null
INFO  2016-09-30 15:29:46,264 [main] Processing resource DemoProcess1.bpmn
DEBUG 2016-09-30 15:29:46,950 [main] Parsing process vacationRequest
DEBUG 2016-09-30 15:29:46,951 [main] Parsing activity handleRequest
DEBUG 2016-09-30 15:29:47,000 [main] Parsing activity requestApprovedDecision
DEBUG 2016-09-30 15:29:47,003 [main] Parsing activity sendApprovalMail
DEBUG 2016-09-30 15:29:47,004 [main] Parsing activity adjustVacationRequestTask
DEBUG 2016-09-30 15:29:47,005 [main] Parsing activity resendRequestDecision
DEBUG 2016-09-30 15:29:47,006 [main] Parsing activity request
DEBUG 2016-09-30 15:29:47,008 [main] Parsing activity theEnd1
DEBUG 2016-09-30 15:29:47,009 [main] Parsing activity theEnd2
DEBUG 2016-09-30 15:29:47,024 [main]

DEBUG 2016-09-30 15:29:47,024 [main] — starting GetProcessDefinitionInfoCmd ——————————————————–
DEBUG 2016-09-30 15:29:47,024 [main] Valid context found. Reusing it for the current command 'org.activiti.engine.impl.cmd.GetProcessDefinitionInfoCmd'
DEBUG 2016-09-30 15:29:47,025 [main] — GetProcessDefinitionInfoCmd finished ——————————————————–
DEBUG 2016-09-30 15:29:47,025 [main]

DEBUG 2016-09-30 15:29:47,025 [main]   insert DeploymentEntity[id=42501, name=null]
DEBUG 2016-09-30 15:29:47,025 [main]   insert ResourceEntity[id=42502, name=DemoProcess1.bpmn]
DEBUG 2016-09-30 15:29:47,026 [main]   insert ProcessDefinitionEntity[vacationRequest:1:42503]
DEBUG 2016-09-30 15:29:47,026 [main] flush summary: 3 insert, 0 update, 0 delete.
DEBUG 2016-09-30 15:29:47,026 [main] now executing flush…
DEBUG 2016-09-30 15:29:47,026 [main] inserting: ProcessDefinitionEntity[vacationRequest:1:42503]
DEBUG 2016-09-30 15:29:47,038 [main] inserting: DeploymentEntity[id=42501, name=null]
DEBUG 2016-09-30 15:29:47,041 [main] inserting: ResourceEntity[id=42502, name=DemoProcess1.bpmn]
DEBUG 2016-09-30 15:29:47,049 [main] Error while closing command context
java.util.ConcurrentModificationException
   at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
   at java.util.HashMap$ValueIterator.next(HashMap.java:1458)
   at org.activiti.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:211)
   at org.activiti.engine.impl.interceptor.CommandContext.close(CommandContext.java:138)
   at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:66)
   at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:37)
   at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)
   at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)
   at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:79)
   at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:156)
   at jp.ecs.tool.DeploymentProcDef.main(DeploymentProcDef.java:74)
DEBUG 2016-09-30 15:29:47,051 [main] firing event rolling back…
DEBUG 2016-09-30 15:29:47,051 [main] rolling back ibatis sql session…
DEBUG 2016-09-30 15:29:47,053 [main] firing event rolled back…
DEBUG 2016-09-30 15:29:47,053 [main] — DeployCmd finished ——————————————————–
DEBUG 2016-09-30 15:29:47,053 [main]

[bpmn]
<?xml version="1.0" encoding="UTF-8" ?>
<definitions id="definitions"
             targetNamespace="http://activiti.org/bpmn20"
             xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:activiti="http://activiti.org/bpmn">

  <process id="vacationRequest" name="Vacation request">

    <startEvent id="request" activiti:initiator="employeeName">
      <extensionElements>
        <activiti:formProperty id="numberOfDays" name="Number of days" type="long" value="1" required="true"/>
        <activiti:formProperty id="startDate" name="First day of holiday (dd-MM-yyy)" datePattern="dd-MM-yyyy hh:mm" type="date" required="true" />
        <activiti:formProperty id="vacationMotivation" name="Motivation" type="string" />
      </extensionElements>
    </startEvent>
    <sequenceFlow id="flow1" sourceRef="request" targetRef="handleRequest" />

    <userTask id="handleRequest" name="Handle vacation request" >
      <documentation>
        ${employeeName} would like to take ${numberOfDays} day(s) of vacation (Motivation: ${vacationMotivation}).
      </documentation>
      <extensionElements>
         <activiti:formProperty id="vacationApproved" name="Do you approve this vacation" type="enum" required="true">
          <activiti:value id="true" name="Approve" />
          <activiti:value id="false" name="Reject" />
        </activiti:formProperty>
        <activiti:formProperty id="managerMotivation" name="Motivation" type="string" />
      </extensionElements>
      <potentialOwner>
        <resourceAssignmentExpression>
          <formalExpression>management</formalExpression>
        </resourceAssignmentExpression>
      </potentialOwner>
    </userTask>
    <sequenceFlow id="flow2" sourceRef="handleRequest" targetRef="requestApprovedDecision" />

    <exclusiveGateway id="requestApprovedDecision" name="Request approved?" />
    <sequenceFlow id="flow3" sourceRef="requestApprovedDecision" targetRef="sendApprovalMail">
      <conditionExpression xsi:type="tFormalExpression">${vacationApproved == 'true'}</conditionExpression>
    </sequenceFlow>

    <task id="sendApprovalMail" name="Send confirmation e-mail" />
    <sequenceFlow id="flow4" sourceRef="sendApprovalMail" targetRef="theEnd1" />
    <endEvent id="theEnd1" />

    <sequenceFlow id="flow5" sourceRef="requestApprovedDecision" targetRef="adjustVacationRequestTask">
      <conditionExpression xsi:type="tFormalExpression">${vacationApproved == 'false'}</conditionExpression>
    </sequenceFlow>

    <userTask id="adjustVacationRequestTask" name="Adjust vacation request">
      <documentation>
        Your manager has disapproved your vacation request for ${numberOfDays} days.
        Reason: ${managerMotivation}
      </documentation>
      <extensionElements>
        <activiti:formProperty id="numberOfDays" name="Number of days" value="${numberOfDays}" type="long" required="true"/>
        <activiti:formProperty id="startDate" name="First day of holiday (dd-MM-yyy)" value="${startDate}" datePattern="dd-MM-yyyy hh:mm" type="date" required="true" />
        <activiti:formProperty id="vacationMotivation" name="Motivation" value="${vacationMotivation}" type="string" />
        <activiti:formProperty id="resendRequest" name="Resend vacation request to manager?" type="enum" required="true">
          <activiti:value id="true" name="Yes" />
          <activiti:value id="false" name="No" />
        </activiti:formProperty>
      </extensionElements>
      <humanPerformer>
        <resourceAssignmentExpression>
          <formalExpression>${employeeName}</formalExpression>
        </resourceAssignmentExpression>
      </humanPerformer>
    </userTask>
    <sequenceFlow id="flow6" sourceRef="adjustVacationRequestTask" targetRef="resendRequestDecision" />

    <exclusiveGateway id="resendRequestDecision" name="Resend request?" />
    <sequenceFlow id="flow7" sourceRef="resendRequestDecision" targetRef="handleRequest">
      <conditionExpression xsi:type="tFormalExpression">${resendRequest == 'true'}</conditionExpression>
    </sequenceFlow>

     <sequenceFlow id="flow8" sourceRef="resendRequestDecision" targetRef="theEnd2">
      <conditionExpression xsi:type="tFormalExpression">${resendRequest == 'false'}</conditionExpression>
    </sequenceFlow>
    <endEvent id="theEnd2" />

  </process>

</definitions>

3 REPLIES 3

masahirotomoda
Champ in-the-making
Champ in-the-making
cmt

masahirotomoda
Champ in-the-making
Champ in-the-making
I set DEBUG rootlogger log4j
sql debug message

DEBUG 2016-10-02 23:19:00,104 [main] inserting: DeploymentEntity[id=1, name=null]
2016-10-02 23:19:00,113 [main] DEBUG java.sql.PreparedStatement - ==>  Executing: insert into ACT_RE_DEPLOYMENT(ID_, NAME_, CATEGORY_, TENANT_ID_, DEPLOY_TIME_) values(?, ?, ?, ?, ?)
2016-10-02 23:19:00,114 [main] DEBUG java.sql.PreparedStatement - ==> Parameters: 1(String), null, null, (String), 2016-10-02 23:18:59.012(Timestamp)
2016-10-02 23:19:00,219 [main] DEBUG java.sql.PreparedStatement - ==>  Executing: INSERT INTO ACT_GE_BYTEARRAY(ID_, REV_, NAME_, BYTES_, DEPLOYMENT_ID_, GENERATED_) VALUES (?, 1, ?, ?, ?, ?) , (?, 1, ?, ?, ?, ?)
2016-10-02 23:19:00,219 [main] DEBUG java.sql.PreparedStatement - ==> Parameters: 2(String), TestProcess1.bpmn(String), java.io.ByteArrayInputStream@25bfcafd(ByteArrayInputStream), 1(String), false(Boolean), 3(String), TestProcess1.myProcess.png(String), java.io.ByteArrayInputStream@4b6690c0(ByteArrayInputStream), 1(String), true(Boolean)
DEBUG 2016-10-02 23:19:00,228 [main] Error while closing command context
java.util.ConcurrentModificationException

sql parameter

2016-10-02 23:19:00,219 [main] DEBUG java.sql.PreparedStatement - ==> Parameters:
2(String), TestProcess1.bpmn(String), java.io.ByteArrayInputStream@25bfcafd(ByteArrayInputStream),
1(String), false(Boolean), 3(String), TestProcess1.myProcess.png(String), java.io.ByteArrayInputStream@4b6690c0(ByteArrayInputStream), 1(String), true(Boolean)

2nd parameter does not fit the ddl
why is this cause problem?

masahirotomoda
Champ in-the-making
Champ in-the-making
sorry this sql is not problem.

anyone help.
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