禁止 Java 中不推荐使用的导入警告

Question

In Java, if you import a deprecated class:

import SomeDeprecatedClass;

You get this warning: The type SomeDeprecatedClass is deprecated

Is there a way to suppress this warning?

Answer 1

To avoid the warning: do not import the class

instead use the fully qualified class name

and use it in as few locations as possible.

Answer 2

在您的类或方法上使用此注释：

@SuppressWarnings( "deprecation" )

Answer 3

As a hack you can not do the import and use the fully qualified name inside the code.

You might also try javac -Xlint:-deprecation not sure if that would address it.

Answer 4

I solved this by changing the import to:

import package.*

then annotating the method that used the deprecated classes with @SuppressWarnings("deprecation")

Answer 5

Suppose that you are overriding/implementing an interface with a deprecated method (such as the getUnicodeStream(String columnLabel) in java.sql.ResultSet ) then you will not get rid of deprecation warnings just by using the annotation @SuppressWarnings( "deprecation" ) , unless you also annotate the same new method with the @Deprecated annotation. This is logical, because otherwise you could undeprecate a method by just overriding its interface description.

Answer 6

you can use:

javac FileName.java -Xlint:-deprecation

But then this will give you warnings and also tell you the part of the code that is causing deprecation or using deprecated API. Now either you can run your code with these warnings or make appropriate changes in the code.

In my case I was using someListItem.addItem("red color") whereas the compiler wanted me to use someListItem.add("red color"); .

Answer 7

If @SuppressWarnings("deprecation") is not working for you like for me. You can find exact squid number in sonar lint plugin. And then you can simply suppress warning: @SuppressWarnings("squid:CallToDeprecatedMethod")