Liana Lupsa created MNG-6801:
--------------------------------
Summary: MavenXpp3Writer doesn't retain structure
Key: MNG-6801
URL: https://issues.apache.org/jira/browse/MNG-6801
Project: Maven
Issue Type: Bug
Components: Plugins and Lifecycle
Reporter: Liana Lupsa
Context:
We are using pipeline-utility-steps-plugin which is a jenkins plugin which uses
the following classes:
https://github.com/jenkinsci/pipeline-utility-steps-plugin/blob/master/src/main/java/org/jenkinsci/plugins/pipeline/utility/steps/maven/ReadMavenPomStep.java.
https://github.com/jenkinsci/pipeline-utility-steps-plugin/blob/master/src/main/java/org/jenkinsci/plugins/pipeline/utility/steps/maven/WriteMavenPomStep.java#L32
In our Jenkins file we have a stage that overwrites the version in the pom with
the computed version and for this we need pipeline-utility-steps-plugin.
The problem is that the tags in the pom.xml are never retained in the same
order. The elements in the pom file are completelly rearranged.
For consistency reasons and idempotency we need to retain the structure and
simply update one line.
Status:
After evaluating the plugin code we noticed that it uses:
https://github.com/jenkinsci/pipeline-utility-steps-plugin/blob/master/src/main/java/org/jenkinsci/plugins/pipeline/utility/steps/maven/WriteMavenPomStep.java#L32
and imports:
import org.apache.maven.model.io.xpp3.MavenXpp3Writer;
with
https://maven.apache.org/ref/3.3.9/maven-model/apidocs/src-html/org/apache/maven/model/io/xpp3/MavenXpp3Writer.html
which uses
XmlSerializer serializer = new MXSerializer();
https://github.com/sonatype/plexus-utils/blob/master/src/main/java/org/codehaus/plexus/util/xml/pull/MXSerializer.java
We think that maven XmlSerializer causes this problem.
Example of the pom.xml changes:
first build trigger:
<maven.compiler.source>1.8</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
second build trigger:
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
