Upgrade to IntelliJ IDEA 2020.3

Closes gh-227

Author: philwebb

spring-javaformat-intellij/spring-javaformat-intellij-plugin/pom.xml

@@ -11,6 +11,7 @@
 	<name>Spring JavaFormat IntelliJ IDEA Plugin</name>
 	<properties>
 		<main.basedir>${basedir}/../..</main.basedir>
+		<java.version>11</java.version>
 	</properties>
 	<dependencies>
 		<!-- Compile -->

spring-javaformat-intellij/spring-javaformat-intellij-plugin/src/main/java/io/spring/format/formatter/intellij/StatusIndicator.java

@@ -17,18 +17,18 @@
 package io.spring.format.formatter.intellij;
 
 import java.awt.event.MouseEvent;
+import java.util.concurrent.TimeUnit;
 
 import javax.swing.Icon;
 
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.IconLoader;
-import com.intellij.openapi.wm.IdeFrame;
 import com.intellij.openapi.wm.StatusBar;
 import com.intellij.openapi.wm.StatusBarWidget;
 import com.intellij.openapi.wm.WindowManager;
-import com.intellij.openapi.wm.WindowManagerListener;
 import com.intellij.util.Consumer;
+import com.intellij.util.concurrency.AppExecutorUtil;
 
 import io.spring.format.formatter.intellij.codestyle.monitor.Trigger.State;
 
@@ -51,7 +51,7 @@ public void update(State state) {
 		WindowManager windowManager = WindowManager.getInstance();
 		final StatusBar statusBar = windowManager.getStatusBar(this.project);
 		if (statusBar == null) {
-			windowManager.addListener(new UpdateOnFrameCreateListener(state));
+			AppExecutorUtil.getAppScheduledExecutorService().schedule(() -> retryUpdate(state), 1, TimeUnit.SECONDS);
 			return;
 		}
 		if (state == State.ACTIVE) {
@@ -62,6 +62,10 @@ public void update(State state) {
 		}
 	}
 
+	private void retryUpdate(State state) {
+		ApplicationManager.getApplication().invokeLater(() -> update(state));
+	}
+
 	private void show(StatusBar statusBar) {
 		if (this.widget == null) {
 			this.widget = new Widget();
@@ -76,30 +80,6 @@ private void hide(final StatusBar statusBar) {
 		}
 	}
 
-	/**
-	 * {@link WindowManagerListener} used to defer setting the status if the IDE frame
-	 * isn't available.
-	 */
-	private class UpdateOnFrameCreateListener implements WindowManagerListener {
-
-		private final State state;
-
-		UpdateOnFrameCreateListener(State state) {
-			this.state = state;
-		}
-
-		@Override
-		public void frameCreated(IdeFrame frame) {
-			WindowManager.getInstance().removeListener(this);
-			ApplicationManager.getApplication().invokeLater(() -> update(this.state));
-		}
-
-		@Override
-		public void beforeFrameReleased(IdeFrame frame) {
-		}
-
-	}
-
 	/**
 	 * The {@link StatusBarWidget} component for the status.
 	 */

spring-javaformat-intellij/spring-javaformat-intellij-runtime/pom.xml

@@ -13,9 +13,9 @@
 	<name>Spring JavaFormat IntelliJ IDEA Runtime</name>
 	<properties>
 		<main.basedir>${basedir}/../..</main.basedir>
-		<intellij.binary>https://download.jetbrains.com/idea/ideaIC-2020.2.tar.gz</intellij.binary>
-		<intellij.source>https://github.com/JetBrains/intellij-community/archive/idea/202.6397.94.zip</intellij.source>
-		<intellij.root>idea-IC-202.6397.94</intellij.root>
+		<intellij.binary>https://download.jetbrains.com/idea/ideaIC-2020.3.tar.gz</intellij.binary>
+		<intellij.source>https://github.com/JetBrains/intellij-community/archive/idea/203.5981.155.zip</intellij.source>
+		<intellij.root>idea-IC-203.5981.155</intellij.root>
 	</properties>
 	<build>
 		<plugins>