Uber Jar created from maven-shade-plugin failed on application startup

Environment Details

• Helidon Version: 1.4.1
• Helidon MP
• JDK version: Open JDK 8
• OS: Window 10

---

Problem Description

Plugin :

<plugin>
	<groupId>org.apache.maven.plugins</groupId>
	<artifactId>maven-shade-plugin</artifactId>
	<executions>
		<execution>
			<phase>package</phase>
			<goals>
				<goal>shade</goal>
			</goals>
			<configuration>
				<transformers>
					<transformer
						implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
						<mainClass>${mainClass}</mainClass>
					</transformer>
					<transformer
						implementation="org.apache.maven.plugins.shade.resource.IncludeResourceTransformer">
						<resource>META-INF/beans.xml</resource>
					</transformer>
				</transformers>
			</configuration>
		</execution>
	</executions>
</plugin>

Console output

Feb 06, 2020 6:08:13 PM io.helidon.microprofile.server.Main configureLogging
INFO: Logging configured using defaults
Feb 06, 2020 6:08:13 PM org.jboss.weld.bootstrap.WeldStartup <clinit>
INFO: WELD-000900: 3.1.1 (Final)
Feb 06, 2020 6:08:14 PM org.jboss.weld.environment.deployment.discovery.DiscoveryStrategyFactory create
INFO: WELD-ENV-000020: Using jandex for bean discovery
Feb 06, 2020 6:08:18 PM org.jboss.weld.bootstrap.WeldStartup startContainer
INFO: WELD-000101: Transactional services not available. Injection of @Inject UserTransaction not available. Transactional observers will be invoked synchronously.
Exception in thread "main" org.jboss.weld.exceptions.DeploymentException: Exception List with 2 exceptions:
Exception 0 :
org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type double with qualifiers @ConfigProperty
  at injection point [BackedAnnotatedParameter] Parameter 2 of [BackedAnnotatedConstructor] @Inject io.helidon.health.checks.DiskSpaceHealthCheck(@ConfigProperty File, @ConfigProperty double)
  at io.helidon.health.checks.DiskSpaceHealthCheck.<init>(DiskSpaceHealthCheck.java:0)

        at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:378)
        at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:290)
        at org.jboss.weld.bootstrap.Validator.validateGeneralBean(Validator.java:143)
        at org.jboss.weld.bootstrap.Validator.validateRIBean(Validator.java:164)
        at org.jboss.weld.bootstrap.Validator.validateBean(Validator.java:526)
        at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:64)
        at org.jboss.weld.bootstrap.ConcurrentValidator$1.doWork(ConcurrentValidator.java:62)
        at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:62)
        at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:55)
        at org.jboss.weld.executor.CommonForkJoinPoolExecutorServices.lambda$wrap$0(CommonForkJoinPoolExecutorServices.java:70)
        at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
        at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
        at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)

Steps to reproduce

mvn clean package java -jar target\microservice-starter-helidon.jar

https://github.com/ERS-HCL/microservice-starter/tree/master/microservice-starter-helidon

[tomas-langer]

You can run your application, but you need to exclude some features from Helidon (as these depend on the beans.xml not being present in their jar file). Change your dependency on Helidon as follows:

<dependency>
    <groupId>io.helidon.microprofile.bundles</groupId>
    <artifactId>helidon-microprofile</artifactId>
    <exclusions>
        <exclusion>
            <groupId>io.helidon.microprofile.tracing</groupId>
            <artifactId>helidon-microprofile-tracing</artifactId>
        </exclusion>
        <exclusion>
            <groupId>io.helidon.microprofile.metrics</groupId>
            <artifactId>helidon-microprofile-metrics2</artifactId>
        </exclusion>
        <exclusion>
            <groupId>io.helidon.microprofile.jwt</groupId>
            <artifactId>helidon-microprofile-jwt-auth-cdi</artifactId>
        </exclusion>
        <exclusion>
            <groupId>io.helidon.microprofile</groupId>
            <artifactId>helidon-microprofile-fault-tolerance</artifactId>
        </exclusion>
    </exclusions>
</dependency>

Modify your shade plugin configuration as follows:

<transformer implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"/>

[tomas-langer]

Closing this issue as

• the application now works (even though some Helidon features are not available)
• we have a follow up issue to fix the remaining features