dom4j dependency needs to be updated to 2.x to run on Java 11+

[smalers]

Describe the bug

I have developed an application on Java 8 using the AWS SDK (pom has version 2.18.19 for the software.amazon.awssdk bom). It is then deployed on Windows and Linux systems that run Java 8, 11, etc. Recently, a change in how the AWS SDK is being used in my code (new feature, etc.) has caused the following exception:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.dom4j.io.SAXContentHandler (file:/opt/tstool-14.9.3/bin/dom4j-1.6.1.jar) to method com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser$LocatorProxy.getEncoding()
WARNING: Please consider reporting this to the maintainers of org.dom4j.io.SAXContentHandler
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Expected Behavior

The parsing of JSON web service responses should work with no problems.

Current Behavior

The illegal reflective access error is generated, which prevents the AWS SDK from working correctly.

Reproduction Steps

I'm not sure of the exact trigger, but I am using the S3 and CloudFront AWS APIs. It works fine on Java 8 with dom4j-1.6.1 but running on Java 11 causes the problem.

Possible Solution

I do not know exactly what is triggering this issue, but internet research indicates that the fix is to use dom4j-2.1.4.jar (or similar), which supports Java 11. I have not tried running on Java versions newer than 11. I downloaded the dom4j-2.1.4.jar file from Maven Central and replaced the 1.6.1 version that Maven includes in the installation. This fixed the problem so I am moving on. I'll try to figure out if I can modify the pom to use the newer version of the file and override what AWS SDK pulls in. If the AWS SDK pom dependency is updated then I won't have to do the work-around.

Additional Information/Context

The software that I am using is complex so it is difficult to provide a snippet. See the AWS plugin code.

AWS Java SDK version used

2.18.19

JDK version used

OpenJDK 8 and 11

Operating System and version

Windows (latest) and Linux Debian Bullseye.

[smalers]

My bad on this. It appears that dom4j is coming in from another package, not AWS SDK. I'm closing this.

[github-actions]

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