Merge pull request #2124 from warunalakshitha/fix_hang

Add dump thread logic temporary

native/src/main/java/io/ballerina/stdlib/graphql/runtime/utils/Utils.java

@@ -27,6 +27,11 @@
 import io.ballerina.runtime.api.values.BObject;
 import io.ballerina.runtime.api.values.BString;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.PrintStream;
+import java.lang.management.ManagementFactory;
+
 import static io.ballerina.stdlib.graphql.runtime.utils.ModuleUtils.getModule;
 
 /**
@@ -36,6 +41,19 @@ public class Utils {
     private Utils() {
     }
 
+    static {
+        Thread.startVirtualThread(() -> {
+            try {
+                Thread.sleep(5 * 60 * 1000);
+            } catch (InterruptedException e) {
+                throw new RuntimeException(e);
+            }
+        });
+    }
+
+    public static final PrintStream OUT = System.out;
+    public static final PrintStream ERROR = System.err;
+
     // Inter-op function names
     private static final String EXECUTE_RESOURCE_FUNCTION = "executeQueryResource";
     private static final String EXECUTE_INTERCEPTOR_FUNCTION = "executeInterceptor";
@@ -105,4 +123,33 @@ public static void handleBErrorAndExit(BError bError) {
         // Please refer: https://github.com/ballerina-platform/ballerina-standard-library/issues/2714
         System.exit(1);
     }
+
+    public static void dumpThreads() {
+        try {
+            // Get the current process ID (PID)
+            String pid = ManagementFactory.getRuntimeMXBean().getName().split("@")[0];
+
+            // Build the jcmd command
+            String command = "jcmd " + pid;
+
+            // Execute the jcmd command
+            Process process = Runtime.getRuntime().exec(command);
+
+            // Read the output of the command
+            try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
+                String line;
+                while ((line = reader.readLine()) != null) {
+                    OUT.println(line);
+                }
+            }
+
+            // Wait for the process to complete
+            int exitCode = process.waitFor();
+            if (exitCode != 0) {
+                ERROR.println("jcmd command failed with exit code: " + exitCode);
+            }
+        } catch (Exception error) {
+            error.printStackTrace();
+        }
+    }
 }

native/src/main/java/module-info.java

@@ -22,4 +22,5 @@
     requires io.ballerina.stdlib.graphql.commons;
     requires io.ballerina.lang;
     requires jdk.jshell;
+    requires java.management;
 }

spotbugs-exclude.xml

@@ -53,4 +53,9 @@
             <Bug pattern="DM_EXIT" />
         </And>
     </Match>
+    <Match>
+        <And>
+            <Class name="io.ballerina.stdlib.graphql.runtime.utils.Utils" />
+        </And>
+    </Match>
 </FindBugsFilter>