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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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/**
* @test
* @summary static initializer invocation order
*
* @build indify.Indify
* @compile CallStaticInitOrder.java
* @run main/othervm
* indify.Indify
* --expand-properties --classpath ${test.classes}
* --java test.java.lang.invoke.CallStaticInitOrder
*/
package test.java.lang.invoke;
import java.io.*;
import java.lang.invoke.*;
import static java.lang.invoke.MethodHandles.*;
import static java.lang.invoke.MethodType.*;
public class CallStaticInitOrder {
private static int TICK;
private static synchronized int tick(String event) {
int n = ++TICK;
System.out.println("event #"+n+" = "+event);
return n;
}
static int Init1Tick;
private static class Init1 {
static { Init1Tick = tick("foo -> Init1.<clinit>"); }
static int foo() { return Init1Tick; }
}
static int Init2Tick;
private static class Init2 {
static { Init2Tick = tick("bar -> Init2.<clinit>"); }
static int bar() { return Init2Tick; }
}
static int Init3Tick;
private static class Init3 {
static { Init3Tick = tick("baz -> Init3.<clinit>"); }
static int baz() { return Init3Tick; }
}
static int Init4Tick;
private static class Init4 {
static { Init4Tick = tick("bat -> Init4.<clinit>"); }
static int bat() { return Init4Tick; }
}
static int Init5Tick;
private static class Init5 {
static { Init5Tick = tick("read bang -> Init5.<clinit>"); }
static int bang = Init5Tick;
}
static int Init6Tick;
private static class Init6 {
static { Init6Tick = tick("write pong -> Init6.<clinit>"); }
static int pong;
}
private static final MutableCallSite CONSTANT_CS_baz;
private static MethodHandle MH_foo() throws ReflectiveOperationException {
return lookup().findStatic(Init1.class, "foo", methodType(int.class));
}
private static final MethodHandle CONSTANT_MH_bar;
private static MethodHandle MH_baz() throws ReflectiveOperationException {
return lookup().findStatic(Init3.class, "baz", methodType(int.class));
}
private static final MethodHandle CONSTANT_MH_bat;
private static final MethodHandle CONSTANT_MH_bangGetter;
private static final MethodHandle CONSTANT_MH_pongSetter;
static {
try {
int t1 = tick("CallStaticInitOrder.<clinit>");
{
CONSTANT_CS_baz = new MutableCallSite(methodType(int.class));
// MH_foo() := lookup().findStatic(Init1.class, "foo", methodType(int.class));
CONSTANT_MH_bar = lookup().findStatic(Init2.class, "bar", methodType(int.class));
// MH_baz() := lookup().findStatic(Init3.class, "baz", methodType(int.class));
CONSTANT_MH_bat = lookup().unreflect(Init4.class.getDeclaredMethod("bat"));
CONSTANT_MH_bangGetter = lookup().findStaticGetter(Init5.class, "bang", int.class);
MethodHandle pongSetter = lookup().findStaticSetter(Init6.class, "pong", int.class);
MethodHandle tickGetter = lookup().findStaticGetter(CallStaticInitOrder.class, "Init6Tick", int.class);
CONSTANT_MH_pongSetter = filterReturnValue(insertArguments(pongSetter, 0, -99), tickGetter);
}
int t2 = tick("CallStaticInitOrder.<clinit> done");
assertEquals(t1+1, t2); // no ticks in between
} catch (Exception ex) {
throw new InternalError(ex.toString());
}
}
public static void main(String... av) throws Throwable {
testInit();
if (LAST_LOSER != null) throw LAST_LOSER;
}
private static Throwable LAST_LOSER;
private static void assertEquals(int expected, int actual) {
if (expected != actual) {
Throwable loser = new AssertionError("expected: " + expected + ", actual: " + actual);
if (LAST_LOSER != null)
LAST_LOSER.printStackTrace(System.out);
LAST_LOSER = loser;
}
}
private static void testInit() throws Throwable {
System.out.println("runFoo = "+runFoo());
System.out.println("runBar = "+runBar());
try {
runBaz();
} catch (IllegalStateException ex) {
tick("runBaz throw/catch");
}
CONSTANT_CS_baz.setTarget(MH_baz());
System.out.println("runBaz = "+runBaz());
System.out.println("runBat = "+runBat());
System.out.println("runBang = "+runBang());
System.out.println("runPong = "+runPong());
}
private static int runFoo() throws Throwable {
assertEquals(Init1Tick, 0); // Init1 not initialized yet
int t1 = tick("runFoo");
int t2 = (int) INDY_foo().invokeExact();
int t3 = tick("runFoo done");
assertEquals(Init1Tick, t2); // when Init1 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_foo() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "foo", methodType(int.class))).dynamicInvoker();
}
private static int runBar() throws Throwable {
assertEquals(Init2Tick, 0); // Init2 not initialized yet
int t1 = tick("runBar");
int t2 = (int) INDY_bar().invokeExact();
int t3 = tick("runBar done");
assertEquals(Init2Tick, t2); // when Init2 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_bar() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "bar", methodType(int.class))).dynamicInvoker();
}
private static int runBaz() throws Throwable {
assertEquals(Init3Tick, 0); // Init3 not initialized yet
int t1 = tick("runBaz");
int t2 = (int) INDY_baz().invokeExact();
int t3 = tick("runBaz done");
assertEquals(Init3Tick, t2); // when Init3 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_baz() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "baz", methodType(int.class))).dynamicInvoker();
}
private static int runBat() throws Throwable {
assertEquals(Init4Tick, 0); // Init4 not initialized yet
int t1 = tick("runBat");
int t2 = (int) INDY_bat().invokeExact();
int t3 = tick("runBat done");
assertEquals(Init4Tick, t2); // when Init4 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_bat() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "bat", methodType(int.class))).dynamicInvoker();
}
private static int runBang() throws Throwable {
assertEquals(Init5Tick, 0); // Init5 not initialized yet
int t1 = tick("runBang");
int t2 = (int) INDY_bang().invokeExact();
int t3 = tick("runBang done");
assertEquals(Init5Tick, t2); // when Init5 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_bang() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "bang", methodType(int.class))).dynamicInvoker();
}
private static int runPong() throws Throwable {
assertEquals(Init6Tick, 0); // Init6 not initialized yet
int t1 = tick("runPong");
int t2 = (int) INDY_pong().invokeExact();
int t3 = tick("runPong done");
assertEquals(Init6Tick, t2); // when Init6 was initialized
assertEquals(t1+2, t3); // exactly two ticks in between
assertEquals(t1+1, t2); // init happened inside
return t2;
}
private static MethodHandle INDY_pong() throws Throwable {
shouldNotCallThis();
return ((CallSite) MH_bsm().invoke(lookup(), "pong", methodType(int.class))).dynamicInvoker();
}
private static CallSite bsm(Lookup caller, String name, MethodType type) throws ReflectiveOperationException {
System.out.println("bsm "+name+type);
CallSite res;
switch (name) {
case "foo":
res = new ConstantCallSite(MH_foo()); break;
case "bar":
res = new ConstantCallSite(CONSTANT_MH_bar); break;
case "baz":
res = CONSTANT_CS_baz; break;
case "bat":
res = new ConstantCallSite(CONSTANT_MH_bat); break;
case "bang":
res = new ConstantCallSite(CONSTANT_MH_bangGetter); break;
case "pong":
res = new ConstantCallSite(CONSTANT_MH_pongSetter); break;
default:
res = null;
}
if (res == null || !res.type().equals(type)) {
throw new AssertionError(String.valueOf(res));
}
return res;
}
private static MethodHandle MH_bsm() throws ReflectiveOperationException {
shouldNotCallThis();
return lookup().findStatic(lookup().lookupClass(), "bsm",
methodType(CallSite.class, Lookup.class, String.class, MethodType.class));
}
private static void shouldNotCallThis() {
// if this gets called, the transformation has not taken place
throw new AssertionError("this code should be statically transformed away by Indify");
}
}