Aaron Anderson created CXF-7633:
-----------------------------------
Summary: JAX-RS 2.1 SSE client SseEventSourceBuilder lookup fails
Key: CXF-7633
URL: https://issues.apache.org/jira/browse/CXF-7633
Project: CXF
Issue Type: Bug
Components: JAX-RS
Affects Versions: 3.2.1
Reporter: Aaron Anderson
I tried to use the following code to create a JAX-RS 2.1 SSE client:
{code:java}
Client client = ClientBuilder.newBuilder().build();
WebTarget base = client.target("http://localhost:8080";);
try (final SseEventSource eventSource =
SseEventSource.target(base.path("/rs/news/update")).build()) {
...
{code}
but I received the following exception:
{code:java}
// java.lang.RuntimeException: java.lang.ClassNotFoundException:
javax.ws.rs.sse.SseEventSource.Builder
at javax.ws.rs.sse.SseEventSource$Builder.newBuilder(SseEventSource.java:53)
at javax.ws.rs.sse.SseEventSource.target(SseEventSource.java:71)
at org.apache.meecrowave.tests.sse.SSETest.run(SSETest.java:51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at
org.apache.meecrowave.junit.MeecrowaveRuleBase$1.evaluate(MeecrowaveRuleBase.java:66)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:367)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:274)
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:161)
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:290)
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:242)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:121)
Caused by: java.lang.ClassNotFoundException:
javax.ws.rs.sse.SseEventSource.Builder
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at javax.ws.rs.sse.SseFinder.newInstance(SseFinder.java:114)
at javax.ws.rs.sse.SseFinder.find(SseFinder.java:97)
at javax.ws.rs.sse.SseEventSource$Builder.newBuilder(SseEventSource.java:39)
... 28 more
{code}
After further investigation in the JAX-RS 2.1 specification both at the JCP
site and in the [2.1 geronimo
specs|https://github.com/apache/geronimo-specs/blob/trunk/geronimo-jaxrs_2.1_spec/src/main/java/javax/ws/rs/sse/SseEventSource.java]
JAXRS_DEFAULT_SSE_BUILDER_PROPERTY service locator key is set to
javax.ws.rs.sse.SseEventSource.Builder but in CFX the service file name has a
dollar sign in the name instead of a period :
[SseEventSource$Builder|https://github.com/apache/cxf/blob/feba8045486cd910b238065cbb3ee4a741198d76/rt/rs/sse/src/main/resources/META-INF/services/javax.ws.rs.sse.SseEventSource%24Builder]
Please rename this file so that it aligns with the specification. I created my
own service loader definition file in my project and it cleared up the
exception.
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