[BUG] NullPointerException: java.lang.invoke.MethodHandles$Lookup java.lang.invoke.MethodHandles$Lookup.in(java.lang.Class)

### 问题描述
在 Android 环境下使用 JSON.parseObject、JSON.toJSONString 等方法时抛出 NullPointerException：

java.lang.NullPointerException: Attempt to invoke virtual method
'java.lang.invoke.MethodHandles$Lookup java.lang.invoke.MethodHandles$Lookup.in(java.lang.Class)'
on a null object reference
### 环境信息
*请填写以下信息：*

- OS 信息：Android 16 (API 36)
- JDK 信息：JDK 21 (编译)
- 版本信息：Fastjson2 2.0.61

### 重现步骤
*如何操作可以重现该问题：*
```kotlin
data class TestModel(
var id: Int = 0,
var name: String = "",
var value: String = ""
)

val jsonString = """
{
"id": 1,
"name": "test",
"value": "hello"
}
""".trimIndent()

val result = JSON.parseObject(jsonString, TestModel::class.java)
val result = jsonString.parseObject()
```

### 期待的正确结果
预期是返回
```kotlin
TestModel(id=1, name=test, value=hello)
```
### 相关日志输出

#### 附加信息

Start by reproducing the failure on Android API 36 with JDK 21 using JSON.parseObject and JSON.toJSONString, then inspect the stack trace around MethodHandles$Lookup.in. Compare the behavior for the Kotlin TestModel example and confirm that deserialization returns the expected TestModel value without a NullPointerException.

Written by the indexing model from the issue text.