Backend-service.jar does not work.

[jfp404]

Description:

I am trying to launch the backend-service.jar but I get this error
java -jar backend-service.jar -introspection
Enabled true
2020-04-10 12:20:14 INFO BookingService:47 - Service properties loaded successfully.
2020-04-10 12:20:14 INFO BookingService:84 - Setting trust store path to : /tmp/wso2carbon.jks11159419101483655202
2020-04-10 12:20:14 INFO BookingService:109 - Starting backend service.
2020-04-10 12:20:14 INFO BookingService:110 - Configurations :
2020-04-10 12:20:14 INFO BookingService:113 - port: 39090
2020-04-10 12:20:14 INFO BookingService:113 - introspectionEndpoint: https://localhost:9443/oauth2/introspect
2020-04-10 12:20:14 INFO BookingService:113 - introspectionEnabled: true
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by io.netty.util.internal.ReflectionUtil (file:/c/Learning/wso2/samples-is/etc/backend-service/target/backend-service.jar) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.ReflectionUtil
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "main" java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
at org.wso2.msf4j.internal.router.MicroserviceMetadata.lambda$new$33(MicroserviceMetadata.java:63)
at java.base/java.util.HashMap.forEach(HashMap.java:1336)
at java.base/java.util.Collections$UnmodifiableMap.forEach(Collections.java:1505)
at org.wso2.msf4j.internal.router.MicroserviceMetadata.(MicroserviceMetadata.java:61)
at org.wso2.msf4j.internal.MicroservicesRegistryImpl.updateMetadata(MicroservicesRegistryImpl.java:234)
at org.wso2.msf4j.internal.MicroservicesRegistryImpl.addService(MicroservicesRegistryImpl.java:80)
at org.wso2.msf4j.MicroservicesRunner.deploy(MicroservicesRunner.java:111)
at org.wso2.sample.identity.backend.BackendApplication.main(BackendApplication.java:116)
Caused by: java.lang.ClassNotFoundException: javax.annotation.PostConstruct
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:583)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 8 more

Suggested Labels:

Suggested Assignees:

Affected Product Version:

OS, DB, other environment details and versions:

Steps to reproduce:

Related Issues:

[Srywards]

Hey, you try to launch with this exactly : java -jar backend-service.jar -introspectionEnabled true ?

[jfp404]

Yes, it is what I tried.

[souvikdotdas]

Perhaps the issue is with JDK version. If JDK 8 is used then it works as expected

[souvikdotdas]

I have verified on Windows and Ubuntu for both Open JDK and Oracle flavours

[Asifislam110]

I am training in this course WSO2 Identity Server Fundamentals - V5.11
but when i go through the lab document (Access Delegation - OAuth 2.0), getting issues to follow the same instruction given by trainer.
At this point i am stuck
Navigate to the location, where backend-service.jar resides and then start thebackend service by executing the following command.(Tip - For more information about the backend service,seeIntroduction toBackend Service)
java -jar backend-service-.jar-introspectionEnabled true
When i run this command getting below error
C:\WINDOWS\system32>java -jar "C:\Users\Lenovo\Downloads\IAM_5.10.Samples-master\IAM_5.10.Samples-master\Access_Delegation_Samples\backend-service.jar" -introspectionEnabled true
2021-05-30 14:10:01 INFO BookingService:47 - Service properties loaded successfully.
2021-05-30 14:10:01 INFO BookingService:84 - Setting trust store path to : C:\Users\Lenovo\AppData\Local\Temp\wso2carbon.jks15529500538398575811
2021-05-30 14:10:01 INFO BookingService:109 - Starting backend service.
2021-05-30 14:10:01 INFO BookingService:110 - Configurations :
2021-05-30 14:10:01 INFO BookingService:113 - port: 39090
2021-05-30 14:10:01 INFO BookingService:113 - introspectionEndpoint: https://localhost:9443/oauth2/introspect
2021-05-30 14:10:01 INFO BookingService:113 - introspectionEnabled: true
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by io.netty.util.internal.ReflectionUtil (file:/C:/Users/Lenovo/Downloads/IAM_5.10.Samples-master/IAM_5.10.Samples-master/Access_Delegation_Samples/backend-service.jar) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of io.netty.util.internal.ReflectionUtil
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Exception in thread "main" java.lang.NoClassDefFoundError: javax/annotation/PostConstruct
at org.wso2.msf4j.internal.router.MicroserviceMetadata.lambda$new$33(MicroserviceMetadata.java:63)
at java.base/java.util.HashMap.forEach(HashMap.java:1336)
at java.base/java.util.Collections$UnmodifiableMap.forEach(Collections.java:1505)
at org.wso2.msf4j.internal.router.MicroserviceMetadata.(MicroserviceMetadata.java:61)
at org.wso2.msf4j.internal.MicroservicesRegistryImpl.updateMetadata(MicroservicesRegistryImpl.java:234)
at org.wso2.msf4j.internal.MicroservicesRegistryImpl.addService(MicroservicesRegistryImpl.java:80)
at org.wso2.msf4j.MicroservicesRunner.deploy(MicroservicesRunner.java:111)
at org.wso2.sample.identity.backend.BackendApplication.main(BackendApplication.java:116)
Caused by: java.lang.ClassNotFoundException: javax.annotation.PostConstruct
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 8 more (edited)

[chaminjay]

@souvikdotdas You're correct. This error occurs on JDK 11. When I tried with JDK 8, it worked without any error.

[charithjayasanka]

Migrating to JDK 8 sorted it out.

[lawipac]

open-Jdk11 has issues and Jdk8 has no problem.

[14R11A05N0]

I'm learning WSO2 Identity Server Fundamentals - V5.11 now, the wso2 application is not working for me on JDK8 & backend-service.jar doesn't work on JDK11....what should i do???

[aortiz90]

JDK11 removed some dependency JARs that are needed. Here is a diff of the changes needed in your backend-service/pom.xml so the dependency JARs are pulled into the backend JAR.

diff --git a/etc/backend-service/pom.xml b/etc/backend-service/pom.xml
index 65c01bbc..765e72b2 100644
--- a/etc/backend-service/pom.xml
+++ b/etc/backend-service/pom.xml
@@ -38,6 +38,16 @@
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
</dependency>
+ <dependency>
+ <groupId>javax.annotation</groupId>
+ <artifactId>javax.annotation-api</artifactId>
+ <version>1.2-b04</version>
+ </dependency>
+ <dependency>
+ <groupId>javax.xml.bind</groupId>
+ <artifactId>jaxb-api</artifactId>
+ <version>2.3.1</version>
+ </dependency>
</dependencies>