how to set jdk.attach.allowAttachSelf=true globally

Question

I am trying to move one of our systems from java 8 to java 9 and about one third of the unit tests that worked OK in java 8 fails with the error below:

java.io.I         


        

Answer 1

My tests were running using surefire plugin, If said vm argument added in argline, then test started working.

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-surefire-plugin</artifactId>
     <version>2.14.1</version>
     <configuration>
       <argLine>-Djdk.attach.allowAttachSelf=true </argLine>
     </configuration>
</plugin>