java 缺少泛型类 Class<T> 的类型参数,其中 T 是类型变量

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时间:2020-10-31 20:58:31  来源:igfitidea点击:

Missing type arguments for generic class Class<T> where T is a type-variable

javagenericsjava-7

提问by kamaci

I use Oracle JDK 7 and when I build project I get that message:

我使用 Oracle JDK 7,当我构建项目时,我收到以下消息:

missing type arguments for generic class Class<T> where T is a type-variable: 
T extends Object declared in class Class

Here is the class:

这是课程:

public class Among {
private static final Class<?>[] EMPTY_PARAMS = new Class[0]; //warning line

Any ideas how to solve it. It is used at many places and I have many warnings.

任何想法如何解决它。它在很多地方使用,我有很多警告。

回答by pholser

private static final Class<?>[] EMPTY_PARAMS = new Class<?>[0];

Note the <?>at the instantiation of the array.

注意<?>数组的实例化。