* @param propertyKey The key of the property. (NotNull)
     * @return The value of found property. (NotNull: if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    String get(String propertyKey);

    /**
     * Is the property true?
     * @param propertyKey The key of the property which is boolean type. (NotNull)

{ void Throwables$1(java.util.List); public Object get(int); public int size(); } org/junit/internal/Checks.class package org.junit.internal; public final synchronized class Checks { private void Checks(); public static Object notNull(Object); public static Object notNull(Object, String); } org/junit/internal/Throwables$State$4.class package org.junit.internal; final synchronized enum Throwables$State$4 { void Throwables$State$4(String, int); public Throwables$State processLine(String); } org/ju...

- [`KT-56835`](https://youtrack.jetbrains.com/issue/KT-56835) Light classes: Underlying fields for delegated properties should be marked as final and `@NotNull`
- [`KT-56840`](https://youtrack.jetbrains.com/issue/KT-56840) Light Classes: Inline classes backed by Java primitives shouldn't be marked with `@NotNull`