java – Setting Eclipse compiler prefs in IntelliJ (ignoreUnnamedModuleForSplitPackage)

I am required to build my project using the Eclipse compiler. I am having a “split package” problem in my project, as discussed e.g. here. The compiler throws errors such as

java: The package org.xml.sax is accessible from more than one module: , java.xml

Eclipse eventually introduced an option to ignore this case and it seems to be enabled by default.

Upon recommendation, I tried setting “Additional command-line parameters” to -properties /home/ben/git-repositories/intellij-sdk-setup/intellij-project-setup/eclipse-compiler.prefs where the prefs file contains

org.eclipse.jdt.core.compiler.ignoreUnnamedModuleForSplitPackage=enabled

However, this does not seem to have any effect.

Would appreciate any help. 🙂