Usage: kotlinc-jvm where advanced options include: -Xadd-compiler-builtins Add definitions of built-in declarations to the compilation classpath (useful with -no-stdlib) -Xadd-modules= Root modules to resolve in addition to the initial modules, or all modules on the module path if is ALL-MODULE-PATH -Xbuild-file= Path to the .xml build file to compile -Xcompile-java Reuse javac analysis and compile Java source files -Xdump-declarations-to= Path to JSON file to dump Java to Kotlin declaration mappings -Xmultifile-parts-inherit Compile multifile classes as a hierarchy of parts and facade -Xmodule-path= Paths where to find Java 9+ modules -Xjavac-arguments= Java compiler arguments -Xjsr305={ignore|strict|warn} Specify global behavior for JSR-305 nullability annotations: ignore, treat as other supported nullability annotations, or report a warning -Xload-builtins-from-dependencies Load definitions of built-in declarations from module dependencies, instead of from the compiler -Xno-call-assertions Don't generate not-null assertions for arguments of platform types -Xno-exception-on-explicit-equals-for-boxed-null Do not throw NPE on explicit 'equals' call for null receiver of platform boxed primitive type -Xno-optimize Disable optimizations -Xno-param-assertions Don't generate not-null assertions on parameters of methods accessible from Java -Xno-receiver-assertions Don't generate not-null assertion for extension receiver arguments of platform types -Xreport-perf Report detailed performance statistics -Xscript-resolver-environment= Script resolver environment in key-value pairs (the value could be quoted and escaped) -Xsingle-module Combine modules for source files and binary dependencies into a single module -Xskip-runtime-version-check Allow Kotlin runtime libraries of incompatible versions in the classpath -Xuse-javac Use javac for Java source and class files analysis -Xuse-old-class-files-reading Use old class files reading implementation (may slow down the build and should be used in case of problems with the new implementation) -Xallow-kotlin-package Allow compiling code in package 'kotlin' and allow not requiring kotlin.stdlib in module-info -Xcoroutines={enable|warn|error} Enable coroutines or report warnings or errors on declarations and use sites of 'suspend' modifier -Xintellij-plugin-root= Path to the kotlin-compiler.jar or directory where IntelliJ configuration files can be found -Xmulti-platform Enable experimental language support for multi-platform projects -Xno-check-actual Do not check presence of 'actual' modifier in multi-platform projects -Xno-inline Disable method inlining -Xplugin= Load plugins from the given classpath -Xrepeat= Repeat compilation (for performance analysis) -Xreport-output-files Report source to output files mapping -Xskip-metadata-version-check Load classes with bad metadata version anyway (incl. pre-release classes) Advanced options are non-standard and may be changed or removed without any notice. OK