Prevent crashes when 3rd party loggers do not implement setLevel (#8631)

Suppressed IDE stack trace for setLevel failure using reflection check, and optimized with caching to avoid performance overhead.

Author: jwren

src/io/flutter/logging/PluginLogger.java

@@ -46,15 +46,32 @@ public class PluginLogger {
   public static void updateLogLevel() {
     final Logger rootLoggerInstance = Logger.getInstance("io.flutter");
     try {
-      rootLoggerInstance.setLevel(FlutterSettings.getInstance().isVerboseLogging() ? LogLevel.ALL : LogLevel.INFO);
+      if (isSetLevelOverridden(rootLoggerInstance)) {
+        rootLoggerInstance.setLevel(FlutterSettings.getInstance().isVerboseLogging() ? LogLevel.ALL : LogLevel.INFO);
+      }
     }
     catch (Throwable e) {
-      // This can happen if the logger is wrapped by a 3rd party plugin that doesn't correctly implement setLevel.
-      // See https://github.com/flutter/flutter-intellij/issues/8631
-      Logger.getInstance(PluginLogger.class).warn("Failed to set log level", e);
+      // This helper method via reflection should prevent the call to setLevel if it's not overridden,
+      // but we keep this catch block as a final safety net.
     }
   }
 
+  private static Boolean isSetLevelOverridden;
+
+  private static boolean isSetLevelOverridden(Logger logger) {
+    if (isSetLevelOverridden != null) {
+      return isSetLevelOverridden;
+    }
+    try {
+      final java.lang.reflect.Method method = logger.getClass().getMethod("setLevel", LogLevel.class);
+      isSetLevelOverridden = !method.getDeclaringClass().equals(Logger.class);
+    }
+    catch (NoSuchMethodException | SecurityException e) {
+      isSetLevelOverridden = false;
+    }
+    return isSetLevelOverridden;
+  }
+
   public static @NotNull Logger createLogger(@NotNull Class<?> logClass) {
     return Logger.getInstance(logClass.getName());
   }