Can't build spring-boot-autoconfiguration in latest Flowable engine 6.5.0-SNAPSHOT

Flowable Engine
1

I am trying the latest 6.5.0-SNAPSHOT version of flowable (specifically the docker images using the script in docker/build-all-images.sh).
This is commit https://github.com/flowable/flowable-engine/commit/8109bd227cce024c80eb88e186a1070a4452464c

The build script fails when building the Flowable distribution:

mvn -Pdistro,errorLogging clean install -DskipTests
...
[INFO] ------------------------------------------------------------------------
[INFO] Building flowable-spring-boot-autoconfigure 6.5.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ flowable-spring-boot-autoconfigure ---
[INFO] Deleting /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/target
[INFO] 
[INFO] --- maven-enforcer-plugin:1.0:enforce (enforce-maven) @ flowable-spring-boot-autoconfigure ---
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ flowable-spring-boot-autoconfigure ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 3 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ flowable-spring-boot-autoconfigure ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 68 source files to /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/target/classes
[INFO] -------------------------------------------------------------
[WARNING] COMPILATION WARNING : 
[INFO] -------------------------------------------------------------
[WARNING] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/idm/IdmEngineAutoConfiguration.java:[46,52] org.springframework.security.crypto.password.NoOpPasswordEncoder in org.springframework.security.crypto.password has been deprecated
[WARNING] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/idm/IdmEngineAutoConfiguration.java:[46,52] org.springframework.security.crypto.password.NoOpPasswordEncoder in org.springframework.security.crypto.password has been deprecated
[INFO] 2 warnings 
[INFO] -------------------------------------------------------------
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR : 
[INFO] -------------------------------------------------------------
[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty
[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[15,21] package javax.servlet does not exist
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[34,15] cannot find symbol
  symbol:   class MultipartConfigElement
  location: class org.flowable.spring.boot.rest.BaseRestApiConfiguration
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[59,43] cannot find symbol
  symbol:   class MultipartConfigElement
  location: class org.flowable.spring.boot.rest.BaseRestApiConfiguration
[INFO] 5 errors 
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[INFO] Flowable ........................................... SUCCESS [  0.847 s]
[INFO] Flowable - BPMN Model .............................. SUCCESS [  3.545 s]
[INFO] Flowable - Process Validation ...................... SUCCESS [  0.588 s]
[INFO] Flowable - BPMN Layout ............................. SUCCESS [  0.390 s]
[INFO] Flowable - Image Generator ......................... SUCCESS [  0.618 s]
[INFO] Flowable - Engine Common API ....................... SUCCESS [  0.404 s]
[INFO] Flowable - Variable Service API .................... SUCCESS [  0.322 s]
[INFO] Flowable - Engine Common ........................... SUCCESS [  4.240 s]
[INFO] Flowable - BPMN Converter .......................... SUCCESS [  2.248 s]
[INFO] Flowable - Entity Link Service API ................. SUCCESS [  0.406 s]
[INFO] Flowable - Entity Link Service ..................... SUCCESS [  0.810 s]
[INFO] Flowable - IDM API ................................. SUCCESS [  0.301 s]
[INFO] Flowable - IDM Engine .............................. SUCCESS [  1.855 s]
[INFO] flowable-idm-engine-configurator ................... SUCCESS [  0.210 s]
[INFO] Flowable - Form API ................................ SUCCESS [  0.191 s]
[INFO] Flowable - Form Model .............................. SUCCESS [  0.192 s]
[INFO] Flowable - DMN Model ............................... SUCCESS [  0.225 s]
[INFO] Flowable - DMN API ................................. SUCCESS [  0.268 s]
[INFO] Flowable - Content API ............................. SUCCESS [  0.181 s]
[INFO] Flowable - CMMN Model .............................. SUCCESS [  0.347 s]
[INFO] Flowable - Event Subscription Service API .......... SUCCESS [  0.239 s]
[INFO] Flowable - Identity Link Service API ............... SUCCESS [  0.190 s]
[INFO] Flowable - Task Service API ........................ SUCCESS [  0.191 s]
[INFO] Flowable - Job Service API ......................... SUCCESS [  0.152 s]
[INFO] Flowable - CMMN API ................................ SUCCESS [  0.271 s]
[INFO] Flowable - CMMN Converter .......................... SUCCESS [  0.665 s]
[INFO] Flowable - CMMN Image Generator .................... SUCCESS [  0.257 s]
[INFO] Flowable - Event Subscription Service .............. SUCCESS [  0.697 s]
[INFO] Flowable - Variable Service ........................ SUCCESS [  0.796 s]
[INFO] Flowable - Identity Link Service ................... SUCCESS [  0.383 s]
[INFO] Flowable - Task Service ............................ SUCCESS [  0.740 s]
[INFO] Flowable - Job Service ............................. SUCCESS [  0.920 s]
[INFO] Flowable - CMMN Engine ............................. SUCCESS [  4.683 s]
[INFO] Flowable Job Spring Service ........................ SUCCESS [  0.177 s]
[INFO] Flowable - Engine .................................. SUCCESS [ 14.247 s]
[INFO] Flowable - App Engine API .......................... SUCCESS [  0.219 s]
[INFO] Flowable - App Engine .............................. SUCCESS [  0.709 s]
[INFO] flowable-spring-security ........................... SUCCESS [  0.329 s]
[INFO] Flowable - JSON Converter .......................... SUCCESS [  0.736 s]
[INFO] Flowable - Spring Common ........................... SUCCESS [  0.195 s]
[INFO] flowable-form-json-converter ....................... SUCCESS [  0.196 s]
[INFO] Flowable - Form Engine ............................. SUCCESS [  0.887 s]
[INFO] Flowable - Form Engine Configurator ................ SUCCESS [  0.388 s]
[INFO] Flowable - CMMN Engine Configurator ................ SUCCESS [  0.382 s]
[INFO] Flowable - Engine Configurator ..................... SUCCESS [  0.174 s]
[INFO] Flowable - IDM - Spring ............................ SUCCESS [  0.413 s]
[INFO] flowable-idm-spring-configurator ................... SUCCESS [  0.183 s]
[INFO] Flowable - Spring .................................. SUCCESS [  0.822 s]
[INFO] Flowable - Spring Configurator ..................... SUCCESS [  0.218 s]
[INFO] Flowable - Secure Scripting ........................ SUCCESS [  0.290 s]
[INFO] Flowable - Groovy static compiled scripts engine ... SUCCESS [  0.307 s]
[INFO] Flowable - App Engine - Spring ..................... SUCCESS [  0.376 s]
[INFO] Flowable - Common - REST ........................... SUCCESS [  0.309 s]
[INFO] Flowable - App Engine REST ......................... SUCCESS [  0.782 s]
[INFO] Flowable - DMN JSON Converter ...................... SUCCESS [  0.324 s]
[INFO] Flowable - DMN XML Converter ....................... SUCCESS [  0.330 s]
[INFO] Flowable - DMN Engine .............................. SUCCESS [  1.177 s]
[INFO] Flowable - Dmn Engine Configurator ................. SUCCESS [  0.337 s]
[INFO] Flowable - Dmn - Spring ............................ SUCCESS [  0.403 s]
[INFO] Flowable - Dmn Spring Configurator ................. SUCCESS [  0.346 s]
[INFO] Flowable - DMN REST ................................ SUCCESS [  0.709 s]
[INFO] Flowable - CMMN JSON Converter ..................... SUCCESS [  0.455 s]
[INFO] Flowable - Cmmn - Spring ........................... SUCCESS [  0.431 s]
[INFO] Flowable - Cmmn Spring Configurator ................ SUCCESS [  0.369 s]
[INFO] Flowable - Form - Spring ........................... SUCCESS [  0.332 s]
[INFO] Flowable - Form Spring Configurator ................ SUCCESS [  0.313 s]
[INFO] Flowable - CMNMN Rest - Classes .................... SUCCESS [  2.209 s]
[INFO] Flowable - Form REST ............................... SUCCESS [  0.701 s]
[INFO] Flowable - IDM REST ................................ SUCCESS [  0.356 s]
[INFO] Flowable - Content Engine .......................... SUCCESS [  0.471 s]
[INFO] Flowable - Content Engine Configurator ............. SUCCESS [  0.336 s]
[INFO] Flowable - Content - Spring ........................ SUCCESS [  0.257 s]
[INFO] Flowable - Content Spring Configurator ............. SUCCESS [  0.237 s]
[INFO] Flowable - Content - REST .......................... SUCCESS [  0.493 s]
[INFO] Flowable 5 Compatibility - Engine .................. SUCCESS [  3.032 s]
[INFO] Flowable 5 Compatibility ........................... SUCCESS [  0.175 s]
[INFO] Flowable 5 - Spring ................................ SUCCESS [  0.399 s]
[INFO] Flowable 5 Spring Compatibility .................... SUCCESS [  0.082 s]
[INFO] Flowable - LDAP .................................... SUCCESS [  0.216 s]
[INFO] Flowable - Rest - Classes .......................... SUCCESS [  3.038 s]
[INFO] flowable-spring-boot ............................... SUCCESS [  0.258 s]
[INFO] flowable-spring-boot-starters ...................... SUCCESS [  0.141 s]
[INFO] flowable-spring-boot-autoconfigure ................. FAILURE [  1.084 s]
[INFO] flowable-spring-boot-starter-basic ................. SKIPPED
[INFO] Flowable - Spring Boot Process Starter ............. SKIPPED
[INFO] flowable-spring-boot-starter-integration ........... SKIPPED
[INFO] flowable-spring-boot-starter-actuator .............. SKIPPED
[INFO] Flowable - Spring Boot App Starter ................. SKIPPED
[INFO] Flowable - Spring Boot CMMN Starter ................ SKIPPED
[INFO] Flowable - Spring Boot DMN Starter ................. SKIPPED
[INFO] Flowable - Spring Boot Starter ..................... SKIPPED
[INFO] Flowable - Spring Boot CMMN REST Starter ........... SKIPPED
[INFO] Flowable - Spring Boot DMN REST Starter ............ SKIPPED
[INFO] Flowable - Spring Boot Process REST Starter ........ SKIPPED
[INFO] Flowable - Spring Boot App REST Starter ............ SKIPPED
[INFO] flowable-spring-boot-starter-rest-api .............. SKIPPED
[INFO] Flowable - Spring Boot REST Starter ................ SKIPPED
[INFO] flowable-spring-boot-samples ....................... SKIPPED
[INFO] flowable-spring-boot-sample-app .................... SKIPPED
[INFO] flowable-spring-boot-sample-process ................ SKIPPED
[INFO] flowable-spring-boot-sample-jpa .................... SKIPPED
[INFO] flowable-spring-boot-sample-jpa-all ................ SKIPPED
[INFO] flowable-spring-boot-sample-security ............... SKIPPED
[INFO] flowable-spring-boot-sample-rest-api ............... SKIPPED
[INFO] flowable-spring-boot-sample-rest-api-security ...... SKIPPED
[INFO] flowable-spring-boot-sample-actuator ............... SKIPPED
[INFO] flowable-spring-boot-sample-integration ............ SKIPPED
[INFO] flowable-spring-boot-sample-custom-mybatis-mapper .. SKIPPED
[INFO] flowable-spring-boot-sample-dmn .................... SKIPPED
[INFO] flowable-spring-boot-sample-form ................... SKIPPED
[INFO] flowable-spring-boot-sample-content ................ SKIPPED
[INFO] flowable-spring-boot-sample-cmmn ................... SKIPPED
[INFO] flowable-spring-boot-sample-ldap ................... SKIPPED
[INFO] flowable-spring-boot-sample-rest-1.5.x ............. SKIPPED
[INFO] flowable-spring-boot-sample-starter ................ SKIPPED
[INFO] Flowable - HTTP .................................... SKIPPED
[INFO] Flowable - REST - APP .............................. SKIPPED
[INFO] Flowable - Cxf ..................................... SKIPPED
[INFO] Flowable - OSGi .................................... SKIPPED
[INFO] Flowable - Camel ................................... SKIPPED
[INFO] Flowable - Mule .................................... SKIPPED
[INFO] Flowable - Cdi ..................................... SKIPPED
[INFO] Flowable - Camel CDI ............................... SKIPPED
[INFO] Flowable - LDAP - Configurator ..................... SKIPPED
[INFO] Flowable - JMX ..................................... SKIPPED
[INFO] Flowable - JMS - Spring - Executor ................. SKIPPED
[INFO] Flowable - CrystalBall ............................. SKIPPED
[INFO] Flowable UI Common ................................. SKIPPED
[INFO] flowable-ui-edge ................................... SKIPPED
[INFO] flowable-archetype-unittest ........................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:12 min
[INFO] Finished at: 2019-04-16T07:02:12+02:00
[INFO] Final Memory: 223M/822M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project flowable-spring-boot-autoconfigure: Compilation failure: Compilation failure: 
[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty
[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[15,21] package javax.servlet does not exist
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[34,15] cannot find symbol
[ERROR]   symbol:   class MultipartConfigElement
[ERROR]   location: class org.flowable.spring.boot.rest.BaseRestApiConfiguration
[ERROR] /path/to/workspace/flowable/flowable-engine/modules/flowable-spring-boot/flowable-spring-boot-starters/flowable-spring-boot-autoconfigure/src/main/java/org/flowable/spring/boot/rest/BaseRestApiConfiguration.java:[59,43] cannot find symbol
[ERROR]   symbol:   class MultipartConfigElement
[ERROR]   location: class org.flowable.spring.boot.rest.BaseRestApiConfiguration
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :flowable-spring-boot-autoconfigure

I’m guessing there is a dependency issue here.

Any advice as to whether this is a problem in the maven scripts or I am doing something wrong?

Thanks,
Paul

2

See: How To: Build Flowable

3

Thanks for the link. I’ve had previously a working build environment, just after the latest pull it stopped working with the above error.

I now checked out the previous commit - https://github.com/flowable/flowable-engine/commit/0f515e9648faf5cdcf737318c4ce4736fb51b8a4 - and retried building and it worked. So the changes in the latest commit have stopped the dependency resolution working for me.

@filiphr I saw that you made this latest commit. Could you take a look at the above error and see if you have any input?

Thanks.

4

Hey Paul,

That is weird. The master build on Travis CI is green and that one uses the exact same command. I just run the build locally with a clean .m2 repository and it was building fine.

In any case I noticed you have this in your logs:

[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty
[ERROR] error reading /path/to/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.17/tomcat-embed-core-9.0.17.jar; zip file is empty

This looks like the jar is corrupted. Can you perhaps try to remove that from your local .m2 repository and try again?

Cheers,
Filip

5

I removed the jars from the repositories and tried again and it works perfectly now.

Thanks for the help @filiphr

Regards,
Paul