Deploy Spring Boot to weblogic 12

Question

I have created an app(spring boot 1.5.6) using start.spring.io and trying to deploy it to Weblogic 12.1.3.0.0.
Messages in administration console:

Error Unable to access the selected application.
Error java.io.IOException
Error weblogic.utils.compiler.ToolFailureException

Message in logs:
<23.08.2017 13:40:26 GMT+03:00> <Error> <J2EE> <BEA-160228> <AppMerge failed to merge your application. If you are running AppMerge on the command-line, merge again with the -verbose option for more details. See the error message(s) below.>

These links don't help:
https://docs.spring.io/spring-boot/docs/1.5.x/reference/html/howto-traditional-deployment.html
Deploy Spring Boot app in Weblogic

Update:
The problem is dependency JAX-RS. Without it app is deployed successfully. Not sure how to make it work With this dependency
Update x2:
Removed Jax-rs and now:
java.lang.NoSuchMethodError:org.springframework.core.annotation.AnnotationAwareOrderComparator.sort(Ljava/util/List;)V
Resolved by this

Answer 1

Our team started to use Spring Boot 2.0.0 and we had this issue also.

After some investigation, we have found that AppMerge tool scans all classes before deploy.

Root cause:

• In case of WebLogic 12.1.3.* it fails because of Multi-Release JAR Files.
• AppMerge tool can't work with JDK 9 files.

Solution:

• Use Log4j 2.8.2

In pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project>
   <parent>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-parent</artifactId>
      <version>2.0.0.RELEASE</version>
      <relativePath/> <!-- lookup parent from repository -->
   </parent>
   ...
   <properties>
      ...
      <log4j2.version>2.8.2</log4j2.version>
      ...
   </properties>
   ...
</project>