According to the certified stack of Magnolia 5.7, Java 11 is supported. However, when it comes to groovy script execution, it is failing whereas same script with java 8 works ok. This is not happening in Magnolia 6.1

Steps to reproduce:

1. Execute the following script in Magnolia 5.7.X with java 8

   import info.magnolia.cms.security.MgnlUser;
   import info.magnolia.context.MgnlContext;
   MgnlUser user = MgnlContext.getUser();
   println user.getName();
   

1. Switch jdk to java 11 and execute it again. You will see following error:

   General error during semantic analysis: Unsupported class file major version 55
    
   java.lang.IllegalArgumentException: Unsupported class file major version 55
       at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:166)
       at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:148)
       at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:136)
       at groovyjarjarasm.asm.ClassReader.<init>(ClassReader.java:237)
       at org.codehaus.groovy.ast.decompiled.AsmDecompiler.parseClass(AsmDecompiler.java:82)
       at org.codehaus.groovy.control.ClassNodeResolver.findDecompiled(ClassNodeResolver.java:254)
   ....
    
   1 error
    
   mgnl>  
   

You can get rid of the issue by replacing groovy-2.5.0.jar and groovy-xml-2.5.0.jar with groovy-2.5.7.jar and groovy-xml-2.5.7.jar. Therefore, groovy dependencies within the BOM for third party modules of Magnolia 5.7 should be updated to 2.5.7 like in Magnolia 6.1