java.lang.NoClassDefFoundError: javax/tools/JavaFileObject

[ajanz]

i run wildfly 13 with java 10.

i need to use the javax.tools.JavaFileObject class

i added --add-modules java.compiler to JAVA_OPTS but without success.

i modified the module for sun\jdk\main with

<path name="javax/tools"/>

but i still get java.lang.NoClassDefFoundError: javax/tools/JavaFileObject

what am i doing wrong?

regards

Sascha

[jewellgm]

Where exactly did you change JAVA_OPTS?  If you changed a Windows or Linux environment variable, it is being overwritten when Wildfly starts.  Assuming that you are in standalone mode, you'll need to modify the $WILDFLY_HOME/bin/standalone.conf (or standalone.conf.bat).

Modifying the sun\jdk module wouldn't work because that package isn't part of the JDK, but the JRE.

[ajanz]

i am on a Windows box. i changed the standalone.con.bat.

the same settings with wildfly 9 work. but not with wildfly 13

[ajanz]

ok i used the jdk....

when i change to the jre the ClassNotFoundException is gone.

But then i got an NullPointerExcetpion because

ToolProvider.getSystemJavaCompiler();

is returning null.

any idea how to solve this?