diff --git a/src/hotspot/share/prims/jvmtiExport.cpp b/src/hotspot/share/prims/jvmtiExport.cpp
index 963c5497b13..f9ebf3b066c 100644
--- a/src/hotspot/share/prims/jvmtiExport.cpp
+++ b/src/hotspot/share/prims/jvmtiExport.cpp
@@ -2269,6 +2269,8 @@ void JvmtiExport::post_field_access_by_jni(JavaThread *thread, oop obj,
                       RegisterMap::ProcessFrames::skip,
                       RegisterMap::WalkContinuation::skip);
   javaVFrame *jvf = thread->last_java_vframe(&reg_map);
+  assert(jvf != nullptr, "last frame shouldn't be null");
+
   Method* method = jvf->method();
   address address = jvf->method()->code_base();
 
@@ -2367,6 +2369,8 @@ void JvmtiExport::post_field_modification_by_jni(JavaThread *thread, oop obj,
                       RegisterMap::ProcessFrames::skip,
                       RegisterMap::WalkContinuation::skip);
   javaVFrame *jvf = thread->last_java_vframe(&reg_map);
+  assert(jvf != nullptr, "last frame shouldn't be null");
+
   Method* method = jvf->method();
   address address = jvf->method()->code_base();