Enrico Olivelli created MWAR-405:
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Summary: Workaround XStream incompatibility with Java9
Key: MWAR-405
URL: https://issues.apache.org/jira/browse/MWAR-405
Project: Maven WAR Plugin
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Enrico Olivelli
Priority: Blocker
The problem is that XStreams tries to access "comparator" field of
java.util.TreeMap and this is forbidden in Java9
{code}
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field
private final java.util.Comparator java.util.TreeMap.comparator accessible:
module java.base does not "opens java.util" to unnamed module
Happens while initializing
org.apache.maven.plugins.war.util.WebappStructureSerializer
{code}
A possibile workaround is to change the initialization of XStreams in a way
that only useful converters are registers, thus bypassing the problem
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