[HADOOP-17540] hadoop-client-runtime-3.3.0 not properly shading javax.xml.bind

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.3.0
• Component/s: hdfs-client
• Assignee: Unassigned
• Reporter: Lorie
• Created: 22/Feb/21 16:46
• Updated: 22/Feb/21 16:50

Description

In the file hadoop-client-modules/hadoop-client-runtime/pom.xml, it excludes javax.xml.bind because it says it is part of the SE JDK.  But, this is no longer true in Java 11. 

 

<exclusions>
	<!-- these APIs are a part of the SE JDK -->
	<exclusion>
	<groupId>javax.xml.bind</groupId>
	<artifactId>jaxb-api</artifactId>
	</exclusion>

 

So, when I try to use Guice to inject objects at start up,  I am getting the error

Error injecting constructor, java.lang.NoClassDefFoundError: org/apache/hadoop/shaded/javax/xmlbind/ModuleUtil (wrong name: javax/xml/bind/ModuleUtil)

 

I was able to get past this by using zip to change the position of the ModuleUtil.class inside the META-INF directory.

Before I made any changes:
jar tvf hadoop-client-runtime-3.3.0.jar | grep ModuleUtil*

META-INF/versions/9/javax/xml/bind/ModuleUtil.class
org/apache/hadoop/shaded/javax/xml/bind/ModuleUtil.class

After I modified the jar:

jar tvf hadoop-client-runtime-3.3.0-MODIFIED.jar | grep ModuleUtil*

META-INF/versions/9/org/apache/hadoop/shaded/javax/xml/bind/ModuleUtil.class
org/apache/hadoop/shaded/javax/xml/bind/ModuleUtil.class

With the revised jar file, my code started.  I don't know if that is the correct way to fix but it works.