Fix EdtExecutorService compatibility

Author: Cybr0sis

src/main/java/com/cybrosis/catdea/toolWindow/CatdeaToolWindowFactory.java

@@ -18,7 +18,7 @@
 
 import com.android.ddmlib.AndroidDebugBridge;
 import com.android.tools.idea.adb.AdbService;
-import com.intellij.util.concurrency.EdtExecutorService;
+import com.cybrosis.catdea.utils.CompatibilityUtil.EdtExecutorService;
 import com.google.common.util.concurrent.FutureCallback;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;

src/main/java/com/cybrosis/catdea/utils/CompatibilityUtil.java

@@ -19,11 +19,13 @@
 import com.android.ddmlib.logcat.LogCatHeader;
 import com.android.ddmlib.logcat.LogCatTimestamp;
 
+import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.time.format.DateTimeFormatter;
+import java.util.concurrent.Executor;
 
 /**
  * @author cybrosis
@@ -54,4 +56,24 @@ public static String getTimestamp(LogCatHeader header) {
             return LocalDateTime.ofInstant(instant, ZONE).format(FORMATTER);
         }
     }
+
+    public static class EdtExecutorService {
+        public static Executor getInstance() {
+            try {
+                final Class<?> clazz = Class.forName("com.intellij.util.concurrency.EdtExecutorService");
+                final Method method = clazz.getDeclaredMethod("getInstance");
+                return (Executor) method.invoke(null);
+            } catch (ReflectiveOperationException ignored) {
+                try {
+                    final Class<?> clazz = Class.forName("com.android.tools.idea.concurrent.EdtExecutor");
+                    final Field field = clazz.getDeclaredField("INSTANCE");
+                    return (Executor) field.get(null);
+                } catch (ReflectiveOperationException e) {
+                    final NoClassDefFoundError error = new NoClassDefFoundError("Either com.intellij.util.concurrency.EdtExecutorService or com.android.tools.idea.concurrent.EdtExecutor should exist");
+                    error.initCause(e);
+                    throw error;
+                }
+            }
+        }
+    }
 }