Class file from PsiJavaFile with IntelliJ 2019.1

Hi

Before IntelliJ 2019.1, I used to fetch Java class files like this:

public static FileInfos getClassFileForJavaFile(PsiJavaFile javaFile, String packageName) throws PatchPluginException {
  PsiClass[] psiClassFiles = javaFile.getClasses();
  List<CompilerPathsEx.ClassFileDescriptor> classFiles = new ArrayList<>();
  for (PsiClass psiClass : psiClassFiles) {
    classFiles.add(CompilerPathsEx.findClassFileInOutput(psiClass));
  }

  if (classFiles.get(0) == null) {
    throw new PatchPluginException("No class file found. Please rebuild all necessary modules and make sure to have the classes in the target folders");
  }

  return new FileInfos(packageName, classFiles);
}

This is no longer working with IntelliJ 2019.1s JDK.
Is there another solution?

Regards
Stefan

P.S. See also https://intellij-support.jetbrains.com/hc/en-us/community/posts/115000656770-Class-file-from-PsiJavaFIle