1 files changed, 14 insertions, 2 deletions
diff --git a/agent/src/main/java/com/code_intelligence/jazzer/runtime/JazzerInternal.java b/agent/src/main/java/com/code_intelligence/jazzer/runtime/JazzerInternal.java
index 8bc1b38c..79c851ad 100644
--- a/agent/src/main/java/com/code_intelligence/jazzer/runtime/JazzerInternal.java
+++ b/agent/src/main/java/com/code_intelligence/jazzer/runtime/JazzerInternal.java
@@ -14,9 +14,12 @@
 
 package com.code_intelligence.jazzer.runtime;
 
+import java.util.ArrayList;
+
 final public class JazzerInternal {
-  // Accessed from native code.
-  private static Throwable lastFinding;
+  private static final ArrayList<Runnable> ON_FUZZ_TARGET_READY_CALLBACKS = new ArrayList<>();
+
+  public static Throwable lastFinding;
 
   // Accessed from api.Jazzer via reflection.
   public static void reportFindingFromHook(Throwable finding) {
@@ -26,4 +29,13 @@ final public class JazzerInternal {
     // target returns even if this Error is swallowed.
     throw new HardToCatchError();
   }
+
+  public static void registerOnFuzzTargetReadyCallback(Runnable callback) {
+    ON_FUZZ_TARGET_READY_CALLBACKS.add(callback);
+  }
+
+  public static void onFuzzTargetReady(String fuzzTargetClass) {
+    ON_FUZZ_TARGET_READY_CALLBACKS.forEach(Runnable::run);
+    ON_FUZZ_TARGET_READY_CALLBACKS.clear();
+  }
 }