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java.lang.reflect.AccessibleObject.setAccessible() Method Example
Description
The java.lang.reflect.AccessibleObject.setAccessible(boolean flag) method sets the accessible flag for this object to the indicated boolean value. A value of true indicates that the reflected object should suppress Java language access checking when it is used. A value of false indicates that the reflected object should enforce Java language access checks.
Declaration
Following is the declaration for java.lang.reflect.AccessibleObject.setAccessible(boolean flag) method.
public void setAccessible(boolean flag) throws SecurityException
Parameters
flag − the new value for the accessible flag in each object.
Exceptions
SecurityException − if the request is denied.
Example
The following example shows the usage of java.lang.reflect.AccessibleObject.setAccessible(boolean flag) method.
Live Demopackage com.tutorialspoint; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Annotation; import java.lang.reflect.AccessibleObject; public class AccessibleObjectDemo { public static void main(String[] args) throws NoSuchMethodException, SecurityException, NoSuchFieldException { AccessibleObject sampleField = SampleClass.class.getDeclaredField("sampleField"); System.out.println("sampleField.isAccessible: " + sampleField.isAccessible()); sampleField.setAccessible(true); System.out.println("sampleField.isAccessible: " + sampleField.isAccessible()); } } @CustomAnnotation(name = "SampleClass", value = "Sample Class Annotation") class SampleClass { private String sampleField; @CustomAnnotation(name = "sampleMethod", value = "Sample Method Annotation") public String sampleMethod(){ return "sample"; } public String getSampleField() { return sampleField; } public void setSampleField(String sampleField) { this.sampleField = sampleField; } } @Retention(RetentionPolicy.RUNTIME) @interface CustomAnnotation { public String name(); public String value(); }
Let us compile and run the above program, this will produce the following result −
sampleField.isAccessible: false sampleField.isAccessible: true
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