Skip to content
This repository was archived by the owner on Oct 23, 2024. It is now read-only.
This repository was archived by the owner on Oct 23, 2024. It is now read-only.

util/FieldInfo.java 里 getInheritGenericType() 可疑的空指针解引用 #1614

Closed
Closed
util/FieldInfo.java 里 getInheritGenericType() 可疑的空指针解引用#1614
Labels
bug
Milestone
1.2.42
@viennadd

Description

@viennadd
viennadd
opened on Nov 27, 2017

Hi,

我们的代码检查器 Pinpoint 报告了一处可疑的空指针解引用，

fastjson/src/main/java/com/alibaba/fastjson/util/FieldInfo.java

Lines 349 to 378 in fcd2ae7

if (gd instanceof Class) {
class_gd = (Class<?>) tv.getGenericDeclaration();
}
Type[] arguments = null;
if (class_gd == clazz) {
if (type instanceof ParameterizedType) {
ParameterizedType ptype = (ParameterizedType) type;
arguments = ptype.getActualTypeArguments();
}
} else {
for (Class<?> c = clazz; c != null && c != Object.class && c != class_gd; c = c.getSuperclass()) {
Type superType = c.getGenericSuperclass();
if (superType instanceof ParameterizedType) {
ParameterizedType p_superType = (ParameterizedType) superType;
Type[] p_superType_args = p_superType.getActualTypeArguments();
getArgument(p_superType_args, c.getTypeParameters(), arguments);
arguments = p_superType_args;
}
}
}
if (arguments == null) {
return null;
}
Type actualType = null;
TypeVariable<?>[] typeVariables = class_gd.getTypeParameters();
for (int j = 0; j < typeVariables.length; ++j) {

349 行是否可能返回 false，导致 377 行使用 class_gd 时触发空指针解引用？

祝好，
Sourcebrella Inc.

Metadata

Metadata

Assignees

No one assigned

    Labels

    bug

    Type

    No type

    Projects

    No projects

    Milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions