From f9a373566ab1caf9dfc9003e75c1f29cab9f902d Mon Sep 17 00:00:00 2001
From: leizhao <leizhao0102@gmail.com>
Date: Mon, 16 Oct 2023 15:18:29 +0800
Subject: [PATCH] fix-dynamic-array-decode-null-pointer

---
 abi/src/main/java/org/web3j/abi/TypeDecoder.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/abi/src/main/java/org/web3j/abi/TypeDecoder.java b/abi/src/main/java/org/web3j/abi/TypeDecoder.java
index 0411b18a3..eb9394504 100644
--- a/abi/src/main/java/org/web3j/abi/TypeDecoder.java
+++ b/abi/src/main/java/org/web3j/abi/TypeDecoder.java
@@ -564,6 +564,9 @@ private static <T extends Type> T decodeDynamicParameterFromStruct(
         if (DynamicStruct.class.isAssignableFrom(declaredField)) {
             value = decodeDynamicStruct(dynamicElementData, 0, TypeReference.create(declaredField));
         } else if (DynamicArray.class.isAssignableFrom(declaredField)) {
+            if (parameter == null) {
+                throw new RuntimeException("parameter can not be null, try to use annotation @Parameterized to specify the parameter type");
+            }
             value =
                     (T)
                             decodeDynamicArray(