Hi
I Managed to deploy a custom flowable modeler for use with the out of the box idm. I however want the modeler to use another source for IDM and set about looking through the code and came upon the RemoteIdmService class. I overrode this (and I’m still assuming this is all you need to override for the flowable modeler) but when I deploy it to my tomcat i get the following exception stack trace:
09-Aug-2019 10:45:24.078 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive [/opt/apache-tomcat-9.0.21/webapps/flowable-modeler.war]
09-Aug-2019 10:45:24.659 SEVERE [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Error deploying web application archive [/opt/apache-tomcat-9.0.21/webapps/flowable-modeler.war]
java.lang.IllegalStateException: Error starting child
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:978)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1849)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:118)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:773)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1620)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:305)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1151)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1353)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1357)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1335)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/flowable-modeler]]
at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717)
... 24 more
Caused by: java.lang.IllegalArgumentException: More than one fragment with the name [spring_web] was found. This is not legal with relative ordering. See section 8.2.2 2c of the Servlet specification for details. Consider using absolute ordering.
at org.apache.tomcat.util.descriptor.web.WebXml.orderWebFragments(WebXml.java:2257)
at org.apache.tomcat.util.descriptor.web.WebXml.orderWebFragments(WebXml.java:2215)
at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1134)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:775)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:301)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5048)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
... 25 more
09-Aug-2019 10:45:24.661 INFO [Catalina-utility-2] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive [/opt/apache-tomcat-9.0.21/webapps/flowable-modeler.war] has finished in [583] ms
My pom.xml look like so:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.0.M3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>dk.magenta</groupId>
<artifactId>flowable-modeler</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>flowable-modeler</name>
<description>Demo project for Spring Boot</description>
<properties>
<flowable.version>6.4.1</flowable.version>
<mariadb.version>2.4.1</mariadb.version>
<java.version>11</java.version>
<maven.ehcache.version>3.6.2</maven.ehcache.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
<exclusion>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.flowable</groupId>
<artifactId>flowable-ui-modeler-app</artifactId>
<version>${flowable.version}</version>
<type>war</type>
</dependency>
<dependency>
<groupId>org.flowable</groupId>
<artifactId>flowable-ui-common</artifactId>
<version>6.4.1</version>
</dependency>
<!--database-->
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<version>${mariadb.version}</version>
</dependency>
<!-- XML mapper -->
<dependency>
<groupId>com.fasterxml.jackson.dataformat</groupId>
<artifactId>jackson-dataformat-xml</artifactId>
<version>2.9.9</version>
</dependency>
<!--Caching-->
<dependency>
<groupId>org.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>${maven.ehcache.version}</version>
</dependency>
</dependencies>
<build>
<finalName>flowable-modeler</finalName>
<resources>
<resource>
<directory>src/main/resources</directory>
<filtering>true</filtering>
<includes>
<include>**/*</include>
</includes>
<excludes>
<exclude>static/fonts/**</exclude>
<exclude>static/libs/bootstrap_3.1.1/fonts/**</exclude>
<exclude>static/editor-app/fonts/**</exclude>
<exclude>static/libs/ui-grid_3.0.0/**</exclude>
</excludes>
</resource>
<resource>
<directory>src/main/resources</directory>
<filtering>false</filtering>
<includes>
<include>static/fonts/**</include>
<include>static/libs/bootstrap_3.1.1/fonts/**</include>
<include>static/editor-app/fonts/**</include>
<include>static/libs/ui-grid_3.0.0/**</include>
</includes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.2.3</version>
<configuration>
<overlays>
<overlay>
<groupId>org.flowable</groupId>
<artifactId>flowable-ui-modeler-app</artifactId>
<type>war</type>
<excludes>
<exclude>WEB-INF/classes/static/*</exclude>
<exclude>WEB-INF/classes/flowable-default.properties</exclude>
</excludes>
</overlay>
</overlays>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
</pluginRepository>
</pluginRepositories>
</project>
Can anyone point me in the right direction?
I’ve narrowed down the culprit to the flowable-ui-common dependency but I can’t get away with not including this in the project as this is where the RemoteIdmService is located.
Adding <absolute-ordering/> to my tomcat’s web.xml doesn’t solve the problem either.