Spring Boot and Ebean - BeanNotEnhancedException on exec:java

[Webmaster Le Comptoir Des Pharmacies]

Hi,

We are trying to use Ebean in Spring Boot application.

We are building using maven and enhance the entities using 'tiles-maven-plugin' (See : https://ebean.io/docs/getting-started/maven#tile)

When running mvn compile, everything is O.K.
When running mvn exec:java, we got the following error :

[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.2.1:java (default-cli) on project preference: An exception occured while executing the Java class. null: InvocationTargetException: Error creating bean with name 'favoriteProductRepository' defined in file [...\model\repository\FavoriteProductRepository.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'ebeanFactoryBean': FactoryBean threw exception on object creation; nested exception is io.ebean.config.BeanNotEnhancedException: Bean class fr.lcdp.business.model.dao.Product is not enhanced? Check packages specified in ebean.mf. If you are running in IDEA or Eclipse check that the enhancement plugin is installed. See https://ebean.io/docs/trouble-shooting#not-enhanced -> [Help 1]

Notes :
We are trying to build/run from command line, so no IDE used here.
We do not have "ebean.mf" as it written as useless since 12.1.8 here :

https://ebean.io/docs/trouble-shooting#npe-querybeans

Have you got an idea of the cause please ?

Thanks in advance for your help.

Yours faithfully,
LCDP

[Webmaster Le Comptoir Des Pharmacies]

Additional informations : 

Instead of mvn compile, if we run mvn install, then when doing java -jar "file.jar" everything seems to work.
Does it means that enhancement do not occurs at compile time but package stage ?

Yours faithfully,
LCDP

[Rob Bygrave]

In maven lifecycle enhancement of code in src/main occurs in process-classes phase which is a lifecycle phase after compile.  Similarly, enhancement of src/test code occurs in process-test-classes phase which is after test-compile.

If we run:

mvn clean process-classes

... lots of stuff ...

...
[INFO] --- maven-compiler-plugin:3.10.1:compile (default-compile) @ my-project ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 44 source files to /home/rob/github/eroad/consolidation/backport/target/classes
[INFO]
[INFO] --- ebean-maven-plugin:13.6.5:enhance (main) @ my-project ---
[INFO] classSource=<redact>/target/classes  transformArgs=debug=0
[INFO] packages entity:[<redact>]  transactional:[]  querybean:[]  profileLocation:true  version:141
[INFO] loaded resources: [META-INF/ebean-version.mf, META-INF/ebean-generated-info.mf]
[INFO]      Entities (14) pkgs[<redact>...
[INFO]    QueryBeans (14) pkgs[<redact> ...
[INFO] Transactional (1)  pkgs[<redact> ...
[INFO] Query Callers (4)  pkgs[<redact> ...

We see the enhancement happening after compile, in the process-classes phase.

Similarly,

mvn clean process-test-classes

... lots of stuff ...
...
[INFO] --- maven-compiler-plugin:3.10.1:testCompile (default-testCompile) @ my-project ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 17 source files to /home/rob/github/eroad/consolidation/backport/target/test-classes
[INFO]
[INFO] --- ebean-maven-plugin:13.6.5:testEnhance (test) @ my-project ---
[INFO] classSource=/home/rob/github/eroad/consolidation/backport/target/test-classes  transformArgs=debug=0
[INFO] packages entity:[nz.co.eroad.backport.consolidation.domain, nz.co.eroad.backport.domain, nz.co.eroad.backport.central.domain]  transactional:[]  querybean:[]  profileLocation:true  version:141
[INFO] loaded resources: [META-INF/ebean-version.mf, META-INF/ebean-generated-info.mf]
[INFO]      Entities (0)  pkgs[] beans[]
[INFO]    QueryBeans (0)  pkgs[] beans[]
[INFO] Transactional (0)  pkgs[] beans[]
[INFO] Query Callers (2)  pkgs[<redact> ...

So before mvn exec:java ... we just need to confirm that the process-classes phase has actually been run.

Cheers, Rob.

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[Webmaster Le Comptoir Des Pharmacies]

Hi Rob,

Perfect logical answer that explain clairly my mistake.
Thanks for these infomations and having built Ebean.

Have a nice day !
Yours faithfully,
LCDP