[wildfly-dev] jdk 9 reflection problem

[Eduardo Sant´Ana da Silva]

The Amos´s solution is the same related here:

http://stackoverflow.com/questions/41265266/how-to-solve-inaccessibleobjectexception-unable-to-make-member-accessible-m/41265267
....

... the correct fix is to launch the JVM as follows:

# --add-opens has the following syntax: {A}/{package}={B}
java --add-opens java.base/java.lang=ALL-UNNAMED  <<<<<<<<<<<<<<<<<<<<<<<<



2017-01-05 12:01 GMT-02:00 Amos Feng <zfeng at redhat.com>:

> Hi Mike,
>
> I had tried MAVEN_OPTS="--add-opens java.base/java.util=ALL-UNNAMED
> --add-opens java.base/java.lang.reflect=ALL-UNNAMED --add-opens
> java.base/java.text=ALL-UNNAMED --add-opens java.desktop/java.awt.font=ALL-UNNAMED"
> and it works.
>
> Amos
>
> ----- Original Message -----
> From: "Michael Musgrove" <mmusgrov at redhat.com>
> To: "WildFly Dev" <wildfly-dev at lists.jboss.org>
> Sent: Thursday, January 5, 2017 8:04:09 PM
> Subject: [wildfly-dev] jdk 9 reflection problem
>
> We have just upgraded our jdk build to 9-ea+149 which has tightened up the
> accessibility rules. The recommendation seems to be to use the --add-opens
> flag to override the rules.
>
> I tried export MAVEN_OPTS="--add-opens java.base/java.util=ALL-UNNAMED"
> which made no difference. Our jdk 9 FAQ does not provided any hints either.
>
> Can anyone provide advice on how to resolve the following maven build
> error:
>
>
> [WARNING] Error injecting: org.apache.maven.plugins.war.WarMojo
> com.google.inject.ProvisionException: Unable to provision, see the
> following errors:
>
> 1) Error injecting constructor, java.lang.ExceptionInInitializerError
> at org.apache.maven.plugins.war.WarMojo.<init>(Unknown Source)
> while locating org.apache.maven.plugins.war.WarMojo
>
> ...
>
> 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 m
> odule @669f2128
> at java.base/jdk.internal.reflect.Reflection.
> throwInaccessibleObjectException(Reflection.java:427)
> at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(
> AccessibleObject.java:201)
> at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:171)
> at java.base/java.lang.reflect.Field.setAccessible(Field.java:165)
> at com.thoughtworks.xstream.core.util.Fields.locate(Fields.java:40)
> at com.thoughtworks.xstream.converters.collections.
> TreeMapConverter.<clinit>(TreeMapConverter.java:50)
>
>
> --
> Michael Musgrove
> Transactions Team
> e: mmusgrov at redhat.com
> t: +44 191 243 0870
>
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-- 
___________________________
Eduardo Sant'Ana da Silva - Ph.D.
Researcher / IT Consultant
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