interfacememberclassmodifiers.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 41 行

/*
 * @test  /nodynamiccopyright/
 * @bug 4294065 4785453
 * @summary Verify that invalid access modifiers on interface members don't cause crash.
 * @author maddox
 *
 * @compile/fail/ref=InterfaceMemberClassModifiers.out -XDstdout -XDdiags=%b:%l:%_%m InterfaceMemberClassModifiers.java
 */

public interface InterfaceMemberClassModifiers {

    Object nullWriter = null;
    
    class SomeClass1 implements InterfaceMemberClassModifiers {			// OK
      	public Object getOut() {
      	    return nullWriter;
	}
    }

    public class SomeClass2 implements InterfaceMemberClassModifiers {		// OK
      	public Object getOut() {
      	    return nullWriter;
	}
    }

    // Compiler used to crash on these!  (after reporting error)

    protected class SomeClass3 implements InterfaceMemberClassModifiers {	// illegal
      	public Object getOut() {
      	    return nullWriter;
	}
    }

    private class SomeClass4 implements InterfaceMemberClassModifiers {		// illegal
      	public Object getOut() {
      	    return nullWriter;
	}
    }

}