Unsatisfied dependencies for type Boolean with qualifiers @ConfigProperty

[charleech]

Environment Details

• Helidon Version: 4.1.3
• Helidon MP
• JDK version: Temurin-21.0.4+7
• OS: Windows 11
• Docker version (if applicable): N/A

---

Problem Description

I am using Helidon version 4.1.3 with MicroProfile Config and encountered an unusual exception when injecting org.eclipse.microprofile.config.inject.ConfigProperty with jakarta.inject.Provider<Boolean>. The error message states:

org.jboss.weld.exceptions.UnsatisfiedResolutionException: 
    WELD-001334: Unsatisfied dependencies for type Boolean with qualifiers @ConfigProperty 
        at org.jboss.weld.bean.builtin.InstanceImpl.checkBeanResolved(InstanceImpl.java:251)
        at org.jboss.weld.bean.builtin.InstanceImpl.get(InstanceImpl.java:113)
        at it.test.com.my.WalkthroughIT.whenGetConfigFromProvider(WalkthroughIT.java:88)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:38)
        at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:106)
        at it.test.com.my.WalkthroughIT$Proxy$_$$_WeldClientProxy.whenGetConfigFromProvider(Unknown Source)
        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
        at java.base/java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:194)
        at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:387)
        at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1312)
        at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1843)
        at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1808)
        at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:188)

Steps to reproduce

Below is my test class:

package it.test.com.my;

import org.eclipse.microprofile.config.inject.ConfigProperty;
import io.helidon.microprofile.testing.junit5.HelidonTest;
import jakarta.inject.Inject;
import jakarta.inject.Provider;

@HelidonTest
class WalkthroughIT {

    @Inject
    @ConfigProperty(
        name = "providerBoolean", defaultValue = "true"
    )
    private Provider<Boolean> providerBoolean;

    @Test
    @DisplayName(
        "When getting config from provider, it must succeed."
    )
    void whenGetConfigFromProvider() {
        BDDAssertions.then(this.providerBoolean).isNotNull();
        BDDAssertions.then(this.providerBoolean.get()).isTrue(); // <--- Exception thrown here.
    }

}

NOTE

Surprisingly, when there is an additional injection of org.eclipse.microprofile.config.inject.ConfigProperty directly with Boolean, no exception occurs.

package it.test.com.my;

import org.eclipse.microprofile.config.inject.ConfigProperty;
import io.helidon.microprofile.testing.junit5.HelidonTest;
import jakarta.inject.Inject;
import jakarta.inject.Provider;

@HelidonTest
class WalkthroughIT {

    @Inject
    @ConfigProperty(
        name = "providerBoolean", defaultValue = "true"
    )
    private Provider<Boolean> providerBoolean;

    @Inject
    @ConfigProperty(
        name = "objectBoolean", defaultValue = "true"
    )
    private Boolean objectBoolean; // <--- Here is an additional.

    @Test
    @DisplayName(
        "When getting config from provider, it must succeed."
    )
    void whenGetConfigFromProvider() {
        BDDAssertions.then(this.providerBoolean).isNotNull();
        BDDAssertions.then(this.providerBoolean.get()).isTrue(); // <--- This works like a charm.
    }

}

Could you please provide further advice? Thank you very much for your help in advance. I look forward to hearing from you soon.

[charleech]

This failure, along with the workaround, also applies to the injection of ConfigProperty with the following (and possibly others):

• Provider<Byte>
• Provider<Long>
• Provider<Float>
• Provider<Double>
• Provider<Character>
• Provider<String>

[charleech]

Additionally, the custom Converter is also affected, and the workaround is also successful.

package it.test.com.my;

import java.util.concurrent.TimeUnit;
import org.eclipse.microprofile.config.spi.Converter;

public class TimeUnitConverter implements Converter<TimeUnit> {

    @Override
    public TimeUnit convert(final String value)
                    throws IllegalArgumentException,
                           NullPointerException {

        return TimeUnit.valueOf(value);

    }

}

# META-INF/services/org.eclipse.microprofile.config.spi.Converter

it.test.com.my.TimeUnitConverter

package it.test.com.my;

import org.eclipse.microprofile.config.inject.ConfigProperty;
import io.helidon.microprofile.testing.junit5.HelidonTest;
import jakarta.inject.Inject;
import jakarta.inject.Provider;

@HelidonTest
class WalkthroughIT {

    @Inject
    @ConfigProperty(
        name = "providerTimeUnit", defaultValue = "MILLISECONDS"
    )
    private Provider<TimeUnit> providerTimeUnit;

    @Inject
    @ConfigProperty(
        name = "objectTimeUnit", defaultValue = "SECONDS"
    )
    private TimeUnit objectTimeUnit; // <--- Here is an additional.
                                     // <--- Without it, an exception is thrown.

    @Test
    @DisplayName(
        "When getting config from provider, it must succeed."
    )
    void whenGetConfigFromProvider() {
        BDDAssertions.then(this.providerTimeUnit).isNotNull();
        BDDAssertions.then(this.providerTimeUnit.get()).
            isEqualTo(TimeUnit.MILLISECONDS); // <--- This works like a charm.
    }

}