unchecked.java

来自「是一款用JAVA 编写的编译器 具有很强的编译功能」· Java 代码 · 共 61 行

/**
 * @test  /nodynamiccopyright/
 * @bug 4986256
 * @compile/ref=Unchecked.noLint.out -XDstdout                         -XDrawDiagnostics Unchecked.java
 * @compile/ref=Unchecked.lintUnchecked.out -XDstdout -Xlint:unchecked -XDrawDiagnostics Unchecked.java
 * @compile/ref=Unchecked.lintAll.out -XDstdout       -Xlint:all,-path -XDrawDiagnostics Unchecked.java
 */

import java.util.ArrayList;
import java.util.List;

// control: this class should generate warnings
class Unchecked
{
    void m() {
	List l = new ArrayList<String>();
	l.add("abc");
    }
}

// tests: the warnings that would otherwise be generated should all be suppressed
@SuppressWarnings("unchecked")
class Unchecked2
{
    void m() {
	List l = new ArrayList<String>();
	l.add("abc");
    }
}

class Unchecked3
{
    @SuppressWarnings("unchecked")
    void m() {
	List l = new ArrayList<String>();
	l.add("abc");
    }
}

class Unchecked4
{
    void m() {
        @SuppressWarnings("unchecked")
	    class Inner {
		void m() {
		    List l = new ArrayList<String>();
		    l.add("abc");
		}
	    }
    }
}

// this class should produce warnings because @SuppressWarnings should not be inherited
class Unchecked5 extends Unchecked2
{
    void m() {
	List l = new ArrayList<String>();
	l.add("abc");
    }
}