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23 
24 /*
25  * @test
26  * @bug 6380849
27  * @summary Tests BeanInfo finder
28  * @modules java.desktop/java.beans:open
29  * @author Sergey Malenkov
30  */
31 
32 import beans.FirstBean;
33 import beans.FirstBeanBeanInfo;
34 import beans.SecondBean;
35 import beans.ThirdBean;
36 
37 import infos.SecondBeanBeanInfo;
38 import infos.ThirdBeanBeanInfo;
39 
40 import java.beans.BeanInfo;
41 import java.beans.Introspector;
42 import java.lang.reflect.Method;
43 
44 public class TestBeanInfo implements Runnable {
45 
46     private static final String[] SEARCH_PATH = { "infos" }; // NON-NLS: package name
47 
main(String[] args)48     public static void main(String[] args) throws InterruptedException {
49         TestBeanInfo test = new TestBeanInfo();
50         test.run();
51         // the following tests fails on previous build
52         ThreadGroup group = new ThreadGroup("$$$"); // NON-NLS: unique thread name
53         Thread thread = new Thread(group, test);
54         thread.start();
55         thread.join();
56     }
57 
test(Class<?> type, Class<? extends BeanInfo> expected)58     private static void test(Class<?> type, Class<? extends BeanInfo> expected) {
59         BeanInfo actual;
60         try {
61             actual = Introspector.getBeanInfo(type);
62             type = actual.getClass();
63             Method method = type.getDeclaredMethod("getTargetBeanInfo"); // NON-NLS: method name
64             method.setAccessible(true);
65             actual = (BeanInfo) method.invoke(actual);
66         }
67         catch (Exception exception) {
68             throw new Error("unexpected error", exception);
69         }
70         if ((actual == null) && (expected != null)) {
71             throw new Error("expected info is not found");
72         }
73         if ((actual != null) && !actual.getClass().equals(expected)) {
74             throw new Error("found unexpected info");
75         }
76     }
77 
78     private boolean passed;
79 
run()80     public void run() {
81         Introspector.flushCaches();
82 
83         test(FirstBean.class, FirstBeanBeanInfo.class);
84         test(SecondBean.class, null);
85         test(ThirdBean.class, null);
86         test(ThirdBeanBeanInfo.class, ThirdBeanBeanInfo.class);
87 
88         Introspector.setBeanInfoSearchPath(SEARCH_PATH);
89         Introspector.flushCaches();
90 
91         test(FirstBean.class, FirstBeanBeanInfo.class);
92         test(SecondBean.class, SecondBeanBeanInfo.class);
93         test(ThirdBean.class, null);
94         test(ThirdBeanBeanInfo.class, ThirdBeanBeanInfo.class);
95     }
96 }
97