Hi everyone,
I had a problem in my spring boot application when updating from camel 3.8.0 to
3.9.0. My WebClient calls which uses .block(Duration) method (belonging to
reactor-core artifact) do not work anymore.
Versioning:
Java 11.0.2.
Spring boot 2.4.4.
Camel 3.9.0.
My pom:
...
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-spring-boot-dependencies</artifactId>
<version>3.9.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.apache.camel.springboot</groupId>
<artifactId>camel-spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
...
Example of failing test:
...
@Test
void httpCallBlocking() {
ResponseEntity<Void> response =
WebClient.create()
.get()
.uri("http://www.google.es/";)
.retrieve()
.toBodilessEntity()
.block(Duration.ofSeconds(5));
assertEquals(200, response.getStatusCodeValue());
}
...
Output:
...
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 6.23 s
<<< FAILURE! - in com.example.demo.DemoApplicationTests
[ERROR] httpCallBlocking Time elapsed: 1.429 s <<< ERROR!
java.lang.NoClassDefFoundError: reactor/util/context/ContextView
at
com.example.demo.DemoApplicationTests.httpCallBlocking(DemoApplicationTests.java:25)
Caused by: java.lang.ClassNotFoundException: reactor.util.context.ContextView
at
com.example.demo.DemoApplicationTests.httpCallBlocking(DemoApplicationTests.java:25)
...
It looks like camel 3.9.0 uses io.projectreactor:reactor-core:3.3.12-RELEASE,
while 3.8.0 used io.projectreactor:reactor-core:3.4.4. I don't really know the
reasons behind this downgrade.
Is it a camel dependency management issue or is it normal behavior?
If I switch from camel-spring-boot-dependencies to camel-spring-boot-bom it
works fine, since the non-camel dependencies are now managed by spring. Should
I just use camel-spring-boot-bom? I would like to keep using
camel-spring-boot-dependencies if possible.
Greetings.
Michael.
