Effective Java

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Effective Java

EnumSet.of(Style.BOLD, Style.ITALIC)
// Program containing marker annotations public class Sample { @Test public static void m1() { } // Test should pass public static void m2() { } @Test
@Test public void m5() { } // INVALID USE: nonstatic method public static void m6() { } @Test
// Program to process marker annotations

CHAPTER 6
ENUMS AND ANNOTATIONS
182
The
Test
annotations have no direct effect on the semantics of the
Sample
class. They serve only to provide information for use by interested programs.
More generally, annotations don’t change the semantics of the annotated code but
enable it for special treatment by tools such as this simple test runner:
// Program to process marker annotations
import java.lang.reflect.*;
public class RunTests {
public static void main(String[] args) throws Exception {
int tests = 0;
int passed = 0;
Class testClass = Class.forName(args[0]);
for (Method m : testClass.getDeclaredMethods()) {
if (

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