diff --git a/platform/projectModel-api/src/org/jetbrains/concurrency/promise.kt b/platform/projectModel-api/src/org/jetbrains/concurrency/promise.kt
index 39a9677784ca..d4f831a0a416 100644
--- a/platform/projectModel-api/src/org/jetbrains/concurrency/promise.kt
+++ b/platform/projectModel-api/src/org/jetbrains/concurrency/promise.kt
@@ -36,11 +36,11 @@ val Promise<*>.isPending: Boolean
 val Promise<*>.isFulfilled: Boolean
   get() = state == Promise.State.FULFILLED
 
-internal val OBSOLETE_ERROR = createError("Obsolete")
+internal val OBSOLETE_ERROR by lazy { createError("Obsolete") }
 
-private val REJECTED: Promise<*> = RejectedPromise<Any?>(createError("rejected"))
-private val DONE: Promise<*> = DonePromise(null)
-private val CANCELLED_PROMISE = RejectedPromise<Any?>(OBSOLETE_ERROR)
+private val REJECTED: Promise<*> by lazy { RejectedPromise<Any?>(createError("rejected")) }
+private val DONE: Promise<*> by lazy { DonePromise(null) }
+private val CANCELLED_PROMISE: Promise<*> by lazy { RejectedPromise<Any?>(OBSOLETE_ERROR) }
 
 @Suppress("UNCHECKED_CAST")
 fun <T> resolvedPromise(): Promise<T> = DONE as Promise<T>