[KARAF-6439] Service fails to start under AIX with OpenJDK J9 Java 11: --patch-module error

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.2.3
• Component/s: karaf

Environment

OS: IBM AIX 7.2

Java: openjdk version "11.0.4" 2019-07-16
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.4+11)
Eclipse OpenJ9 VM AdoptOpenJDK (build openj9-0.15.1, JRE 11 AIX ppc64-64-Bit Compressed References 20190717_292 (JIT enabled, AOT enabled)
OpenJ9 - 0f66c64
OMR - ec782f2
JCL - fa49279 based on jdk-11.0.4+11)

• Assignee: Freeman Yue Fang
• Reporter: Christian Brüssow
• Created: 30/Sep/19 10:31
• Updated: 07/May/21 12:50

Description

Under AIX 7.2 I have used the service wrapper. It creates the correct entry in /etc/inittab and also creates a wrapper.conf that looks fine (see attachement). Here the entry from the inittab:

NN_MyAgent1:2:once:/data/MyService/karaf/bin/NN_MyAgent1-service start

Starting karaf via the start-script from karaf/bin/ works as expected.

But when starting karaf via the service wrapper, the start fails with the following error shown in the wrapper.log (loglevel DEBUG):

DEBUG  | wrapper  | 2019/09/30 11:30:38 | Signal trapped.  Details:DEBUG  | wrapper  | 2019/09/30 11:30:38 | Signal trapped.  Details:DEBUG  | wrapper  | 2019/09/30 11:30:38 |   signal number=20 (SIGCHLD), source="unknown"DEBUG  | wrapper  | 2019/09/30 11:30:38 | Received SIGCHLD, checking JVM process status.DEBUG  | wrapper  | 2019/09/30 11:30:38 | JVM process exited with a code of 1, setting the wrapper exit code to 1.ERROR  | wrapper  | 2019/09/30 11:30:38 | JVM exited while loading the application.INFO   | jvm 1    | 2019/09/30 11:30:38 | Exception in thread "main" java/lang/ExceptionInInitializerErrorINFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/J9VMInternals.ensureError (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/J9VMInternals.recordInitializationFailure (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/ClassLoader.initializeClassLoaders (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/Thread.initialize (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/Thread.<init> (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | java/lang/RuntimeException: java.base specified more than once to --patch-moduleINFO   | jvm 1    | 2019/09/30 11:30:38 | at jdk/internal/module/ModuleBootstrap.fail (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at jdk/internal/module/ModuleBootstrap.decode (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at jdk/internal/module/ModuleBootstrap.initModulePatcher (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at jdk/internal/module/ModuleBootstrap.<clinit> (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/ClassLoader.initializeClassLoaders (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/Thread.initialize (java.base@9/Unknown Source:4294967295)INFO   | jvm 1    | 2019/09/30 11:30:38 | at java/lang/Thread.<init> (java.base@9/Unknown Source:4294967295)DEBUG  | wrapper  | 2019/09/30 11:30:38 | JVM was only running for 0 seconds leading to a failed restart count of 1.

The entries in the wrapper.conf are looking ok for me, see attachement.

The Java used is an OpenJDK OpenJ9 Java 11 from AdoptJDK.