Tamas Cservenak created MSHADE-428:
--------------------------------------
Summary: Typo causes mysterious NPE in build
Key: MSHADE-428
URL: https://issues.apache.org/jira/browse/MSHADE-428
Project: Maven Shade Plugin
Issue Type: Bug
Reporter: Tamas Cservenak
All versions are affected.
Has this config for plugin:
{noformat}
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ComponentsXmlResourceTransformer"
/>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer"
/>
<transformer
implementatioh="org.apache.maven.plugins.shade.resource.SisuIndexResourceTransformer"
/>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>org.apache.maven.index.cli.NexusIndexerCli</Main-Class>
<Multi-Release>true</Multi-Release>
</manifestEntries>
</transformer>
</transformers> {noformat}
And build was failing with
{noformat}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-shade-plugin:3.4.0:shade (default) on project
indexer-cli: Error creating shaded jar: Problem shading JAR
/home/cstamas/Worx/apache-maven/maven-indexer/indexer-cli/target/indexer-cli-7.0.0-SNAPSHOT.jar
entry META-INF/sisu/javax.inject.Named: java.lang.NullPointerException ->
[Help 1] {noformat}
Cause: there is a typo in config, notive {{implementatioH}} for sisu
transformer.
This caused that list of transformes had a null element, and seems there is no
validation that transformers list may not have null element. NPE happened when
default shared method {{private boolean resourceTransformed(}} stepped onto
null element and had {{null.canTransformResource( name )}}.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
