mvn package failure: required attribute

I have pulled the ion-api-sdk from ION registory. It has generated the maven directory structure

ion-api-sdk/JavaWebClientOAuth2/META-INF/maven/com.infor/SampleAppOAuth2

I have located the project object management file pom.xml, and executed a mvn package

the WAR assembly was attempted here:

/home/ec2-user/projects/ion-api-sdk/JavaWebClientOAuth2/META-INF/maven/com.infor/SampleAppOAuth2/target/SampleAppOAuth2.war

This is the assembly error

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project SampleAppOAuth2: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]

Find more posts tagged with

ION API Gateway

Accepted answers

Legacy Contributor

Keith, I have successfully migrated the netbeans/jetty based pom.xml to maven/Tomcat pom.xml. the WAR generated, and I deployed to tomcat and SampleAppOAuth2 is running. However, the github docs github.com/.../ion-api-sdk fall short of what values should be set in the index.jsp. I am going set this questioned as answered, then open another question specific to the SampleAppOAuth2 web application

All comments

Legacy Contributor

I added mvn -e and dumped stack trace

Caused by: org.apache.maven.plugin.MojoExecutionException: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode

Caused by: org.codehaus.plexus.archiver.ArchiverException: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode)

Legacy Contributor

I have added

<failOnMissingWebXml>false</failOnMissingWebXml> and the WAR generated

Legacy Contributor

Did you get the latest SDK from github.com/.../ion-api-sdk ?

Legacy Contributor

Yes. I have discovered two things. It was designed using Netbeans, and deployed to Jetty. I am reworking the pom.xml to I can deploy on ec2 running java 1.8 & tomcat. The WAR generated almost as is, so that's a good start.

Legacy Contributor

Copyright © 2025 Infor. All rights reserved.