[jboss-jira] [JBoss JIRA] (WFCORE-3816) ExtensionIndexService throws NPE while reading extensions on the IBM jdk

[Petr Kremensky (JIRA)]

Petr Kremensky created WFCORE-3816:
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             Summary: ExtensionIndexService throws NPE while reading extensions on the IBM jdk
                 Key: WFCORE-3816
                 URL: https://issues.jboss.org/browse/WFCORE-3816
             Project: WildFly Core
          Issue Type: Bug
          Components: Server
    Affects Versions: 5.0.0.Alpha7
         Environment: {noformat}
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 8.0.5.11 - pxa6480sr5fp11-20180326_01(SR5 FP11))
IBM J9 VM (build 2.9, JRE 1.8.0 Linux amd64-64 Compressed References 20180309_380776 (JIT enabled, AOT enabled)
OpenJ9   - 49fcaf39
OMR      - 5cbbadf
IBM      - 4453dac)
JCL - 20180319_01 based on Oracle jdk8u161-b12
{noformat}
            Reporter: Petr Kremensky
            Assignee: Petr Kremensky


https://github.com/wildfly/wildfly-core/blob/5.0.0.Alpha7/server/src/main/java/org/jboss/as/server/moduleservice/ExtensionIndexService.java#L94 reads extensions from jars manifest like:
{code:java}
File jar = new File(<jar>)
final JarFile jarFile = new JarFile(jar);
final Manifest manifest = jarFile.getManifest();
final Attributes mainAttributes = manifest.getMainAttributes();
...
{code}
The latest [IBM jdk 8.0-5.11|https://developer.ibm.com/javasdk/downloads/sdk8/] (and possible some of previous releases) contains some jars \[1\] where {{manifest.getMainAttributes();}} throws NPE, causing deploy operation of archive with Extension-List to fail, see WFLY-10349.

\[1\]
ibm-java-8.0-5.11/jre/lib/ext/traceformat.jar: java.lang.NullPointerException
ibm-java-8.0-5.11/jre/lib/ext/dtfj.jar: java.lang.NullPointerException
ibm-java-8.0-5.11/jre/lib/ext/dtfjview.jar: java.lang.NullPointerException




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