37 static final long JAVA_BIRTH_YEAR = 1995;
38
39 static volatile boolean earlyretDone = false;
40 static volatile int errCode = Consts.TEST_PASSED;
41 private PrintStream out;
42 private earlyretThread earlyretThr;
43 static Object barrier = new Object();
44 static Wicket startingBarrier;
45
46 static {
47 try {
48 System.loadLibrary("earlyretbase");
49 } catch (UnsatisfiedLinkError e) {
50 System.err.println("Could not load earlyretbase library");
51 System.err.println("java.library.path:" +
52 System.getProperty("java.library.path"));
53 throw e;
54 }
55 }
56
57 native static int doForceEarlyReturn(Class targCls,
58 Thread earlyretThr, long valToRet);
59 native static int suspThread(earlyretThread earlyretThr);
60 native static int resThread(earlyretThread earlyretThr);
61 native static int check();
62
63 public static void main(String[] argv) {
64 argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
65
66 System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
67 }
68
69 public static int run(String argv[], PrintStream out) {
70 return new earlyretbase().runIt(argv, out);
71 }
72
73 private int runIt(String argv[], PrintStream out) {
74 int retCode = 0;
75
76 this.out = out;
77
78 earlyretThr = new earlyretThread("Tested Thread");
79 startingBarrier = new Wicket();
80
81 // start the child thread
82 earlyretThr.start();
83 startingBarrier.waitFor();
84
85 // pause until the child thread exits notification-block
86 synchronized (barrier) {
87 }
88
89 out.println("Going to suspend the thread...");
90 retCode = suspThread(earlyretThr);
91 if (retCode != Consts.TEST_PASSED) {
92 out.println("TEST: failed to suspend thread");
93 return Consts.TEST_FAILED;
94 }
95
96 out.println("Forcing early return...");
97
98 // force return from a top frame of the child thread
99 retCode = doForceEarlyReturn(earlyretThread.class,
100 earlyretThr, JAVA_BIRTH_YEAR);
101 earlyretDone = true;
102 earlyretThr.letItGo();
103 if (retCode != Consts.TEST_PASSED) {
104 out.println("TEST: failed to force early return");
105 resThread(earlyretThr);
106 return Consts.TEST_FAILED;
107 }
108
109 out.println("Going to resume the thread...");
110
111 retCode = resThread(earlyretThr);
112 if (retCode != Consts.TEST_PASSED) {
113 out.println("TEST: failed to resume thread");
114 return Consts.TEST_FAILED;
115 }
116
117 try {
118 earlyretThr.join();
119 } catch (InterruptedException e) {
120 out.println("TEST INCOMPLETE: caught " + e);
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37 static final long JAVA_BIRTH_YEAR = 1995;
38
39 static volatile boolean earlyretDone = false;
40 static volatile int errCode = Consts.TEST_PASSED;
41 private PrintStream out;
42 private earlyretThread earlyretThr;
43 static Object barrier = new Object();
44 static Wicket startingBarrier;
45
46 static {
47 try {
48 System.loadLibrary("earlyretbase");
49 } catch (UnsatisfiedLinkError e) {
50 System.err.println("Could not load earlyretbase library");
51 System.err.println("java.library.path:" +
52 System.getProperty("java.library.path"));
53 throw e;
54 }
55 }
56
57 native static int doForceEarlyReturn(Thread earlyretThr, long valToRet);
58 native static int suspThread(earlyretThread earlyretThr);
59 native static int resThread(earlyretThread earlyretThr);
60 native static int check();
61
62 public static void main(String[] argv) {
63 argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
64
65 System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
66 }
67
68 public static int run(String argv[], PrintStream out) {
69 return new earlyretbase().runIt(argv, out);
70 }
71
72 private int runIt(String argv[], PrintStream out) {
73 int retCode = 0;
74
75 this.out = out;
76
77 earlyretThr = new earlyretThread("Tested Thread");
78 startingBarrier = new Wicket();
79
80 // start the child thread
81 earlyretThr.start();
82 startingBarrier.waitFor();
83
84 // pause until the child thread exits notification-block
85 synchronized (barrier) {
86 }
87
88 out.println("Going to suspend the thread...");
89 retCode = suspThread(earlyretThr);
90 if (retCode != Consts.TEST_PASSED) {
91 out.println("TEST: failed to suspend thread");
92 return Consts.TEST_FAILED;
93 }
94
95 out.println("Forcing early return...");
96
97 // force return from a top frame of the child thread
98 retCode = doForceEarlyReturn(earlyretThr, JAVA_BIRTH_YEAR);
99 earlyretDone = true;
100 earlyretThr.letItGo();
101 if (retCode != Consts.TEST_PASSED) {
102 out.println("TEST: failed to force early return");
103 resThread(earlyretThr);
104 return Consts.TEST_FAILED;
105 }
106
107 out.println("Going to resume the thread...");
108
109 retCode = resThread(earlyretThr);
110 if (retCode != Consts.TEST_PASSED) {
111 out.println("TEST: failed to resume thread");
112 return Consts.TEST_FAILED;
113 }
114
115 try {
116 earlyretThr.join();
117 } catch (InterruptedException e) {
118 out.println("TEST INCOMPLETE: caught " + e);
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