Change the default timout action in initialization

jdk/src/linux/classes/com/alibaba/wisp/engine/TimeOut.java

@@ -30,6 +30,7 @@
  */
 public class TimeOut {
     enum Action {
+        INIT,
         JVM_UNPARK,
         JDK_UNPARK,
         RESUME
@@ -67,6 +68,9 @@ public boolean expired() {
      */
     void doAction() {
         switch (action) {
+            case INIT:
+                // only be called in Wisp init process
+                break;
             case RESUME:
                 task.carrier.wakeupTask(task);
                 break;

jdk/src/linux/classes/com/alibaba/wisp/engine/WispEngine.java

@@ -161,7 +161,8 @@ public void run() {
             new ConcurrentLinkedQueue<>().iterator();
             new ConcurrentSkipListMap<>().keySet().iterator();
             WispCarrier carrier = WispCarrier.current();
-            carrier.addTimer(System.nanoTime() + Integer.MAX_VALUE, TimeOut.Action.JDK_UNPARK);
+            // This timer will never be processed
+            carrier.addTimer(System.nanoTime() + Integer.MAX_VALUE, TimeOut.Action.INIT);
             WispCarrier.current().current.timeOut.doAction();
             carrier.cancelTimer();
             carrier.createResumeEntry(new WispTask(carrier, null, false, false));

jdk/test/com/alibaba/wisp2/MainThreadSleepTest.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2026 Alibaba Group Holding Limited. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Alibaba designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * 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).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+public class MainThreadSleepTest {
+    public static void main(String[] args) throws Exception {
+        long start = System.nanoTime();
+        // sleep for 10 seconds
+        Thread.sleep(10 * 1000);
+        long end = System.nanoTime();
+        if (end - start < 10 * 1000000000L) {
+            System.err.println("sleep time is less than 10 seconds: " + (end - start) + " ns");
+            System.exit(1);
+        }
+        return;
+    }
+}
+
+
+

jdk/test/com/alibaba/wisp2/mainThreadSleepTest.sh

@@ -0,0 +1,49 @@
+# Copyright (c) 2026 Alibaba Group Holding Limited. All Rights Reserved.
+# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+#
+# This code is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 only, as
+# published by the Free Software Foundation. Alibaba designates this
+# particular file as subject to the "Classpath" exception as provided
+# by Oracle in the LICENSE file that accompanied this code.
+#
+# This code is distributed in the hope that it will be useful, but WITHOUT
+# 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).
+#
+# You should have received a copy of the GNU General Public License version
+# 2 along with this work; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+
+# @test
+# @run shell mainThreadSleepTest.sh
+# @summary Main thread sleep time test
+
+OS=`uname -s`
+case "$OS" in
+  SunOS | Linux | Darwin | AIX )
+    PS=":"
+    FS="/"
+    ;;
+  CYGWIN* )
+    PS=";"
+    FS="/"
+    ;;
+  Windows* )
+    PS=";"
+    FS="\\"
+    ;;
+  * )
+    echo "Unrecognized system!"
+    exit 1;
+    ;;
+esac
+
+# compile
+${COMPILEJAVA}${FS}bin${FS}javac ${TESTJAVACOPTS} ${TESTTOOLVMOPTS} -d ${TESTCLASSPATH} ${TESTSRC}${FS}MainThreadSleepTest.java
+
+# run
+${TESTJAVA}${FS}bin${FS}java ${TESTVMOPTS} -XX:+UnlockExperimentalVMOptions -XX:+UseWisp2 -cp ${TESTCLASSPATH} MainThreadSleepTest