[cq] Java cleanup, remove constant values

src/io/flutter/FlutterErrorReportSubmitter.java

@@ -72,23 +72,20 @@ public boolean submit(@NotNull IdeaLoggingEvent @NotNull [] events,
         if (stackTraceText.startsWith(DaemonApi.FLUTTER_ERROR_PREFIX)) {
           final String message = stackTraceText.substring(DaemonApi.FLUTTER_ERROR_PREFIX.length());
           final int start = message.indexOf(": ") + 2;
-          if (start == 0) continue;
           int end = message.indexOf('\n');
           if (end < 0) end = message.length();
           final String error = message.substring(start, end);
           stackTrace = message.substring(end + 1);
           for (String err : KNOWN_ERRORS) {
             if (error.contains(err)) {
-              if (end != message.length()) {
-                // Dart stack trace included so extract it and set the issue target to the Flutter repo.
-                errorMessage = err;
-                final int endOfDartStack = stackTrace.indexOf("\\n\"\n");
-                if (endOfDartStack > 0) {
-                  // Get only the part between quotes. If the format is wrong just use the whole thing.
-                  stackTrace = stackTrace.substring(1, endOfDartStack);
-                }
-                break;
+              // Dart stack trace included so extract it and set the issue target to the Flutter repo.
+              errorMessage = err;
+              final int endOfDartStack = stackTrace.indexOf("\\n\"\n");
+              if (endOfDartStack > 0) {
+                // Get only the part between quotes. If the format is wrong just use the whole thing.
+                stackTrace = stackTrace.substring(1, endOfDartStack);
               }
+              break;
             }
           }
         }

src/io/flutter/FlutterInitializer.java

@@ -314,7 +314,7 @@ private void checkSdkVersionNotification(@NotNull Project project) {
     // See FlutterSdkVersion.MIN_SDK_SUPPORTED.
     if (version.isValid() && !version.isSDKSupported()) {
       final FlutterSettings settings = FlutterSettings.getInstance();
-      if (settings == null || settings.isSdkVersionOutdatedWarningAcknowledged(version.getVersionText(), false)) return;
+      if (settings.isSdkVersionOutdatedWarningAcknowledged(version.getVersionText(), false)) return;
       OpenApiUtils.safeInvokeLater(() -> {
         final Notification notification = new Notification(FlutterMessages.FLUTTER_NOTIFICATION_GROUP_ID,
                                                            "Flutter SDK requires update",
@@ -339,7 +339,7 @@ public void actionPerformed(@NotNull AnActionEvent event) {
     // See FlutterSdkVersion.MIN_SDK_WITHOUT_SUNSET_WARNING.
     if (version.isValid() && version.isSDKAboutToSunset()) {
       final FlutterSettings settings = FlutterSettings.getInstance();
-      if (settings == null || settings.isSdkVersionOutdatedWarningAcknowledged(version.getVersionText(), true)) return;
+      if (settings.isSdkVersionOutdatedWarningAcknowledged(version.getVersionText(), true)) return;
 
       OpenApiUtils.safeInvokeLater(() -> {
         final Notification notification = new Notification(FlutterMessages.FLUTTER_NOTIFICATION_GROUP_ID,

src/io/flutter/FlutterStudioStartupActivity.java

@@ -29,8 +29,7 @@ private static Void doNonBlockingStartup(@NotNull Project project) {
     //FlutterProjectCreator.disableUserConfig(project);
     // Monitor Android dependencies.
     FlutterSettings flutterSettings = FlutterSettings.getInstance();
-    if (flutterSettings != null && flutterSettings.isSyncingAndroidLibraries() ||
-        System.getProperty("flutter.android.library.sync", null) != null) {
+    if (flutterSettings.isSyncingAndroidLibraries() || System.getProperty("flutter.android.library.sync", null) != null) {
       // TODO(messick): Remove the flag once this sync mechanism is stable.
       AndroidModuleLibraryManager.startWatching(project);
     }

src/io/flutter/FlutterUtils.java

@@ -578,9 +578,6 @@ public static EmbeddedBrowser embeddedBrowser(Project project) {
     }
 
     FlutterSettings settings = FlutterSettings.getInstance();
-    if (settings == null) {
-      return null;
-    }
 
     return settings.isEnableJcefBrowser()
            ? EmbeddedJcefBrowser.getInstance(project)

src/io/flutter/actions/OpenInAndroidStudioAction.java

@@ -178,7 +178,6 @@ protected static boolean isProjectFileName(@NotNull String name) {
         for (PubRoot root : PubRoots.forProject(project)) {
           if (root.isFlutterPlugin()) {
             final VirtualFile rootFile = root.getRoot();
-            if (rootFile == null) continue;
             VirtualFile aFile = file;
             while (aFile != null) {
               if (aFile.equals(rootFile)) {

src/io/flutter/console/FlutterConsoleFilter.java

@@ -94,19 +94,17 @@ public VirtualFile fileAtPath(@NotNull String pathPart) {
     final VirtualFile[] roots = OpenApiUtils.getContentRoots(module);
     for (VirtualFile root : roots) {
       if (root == null) continue;
-      if (!pathPart.isEmpty()) {
-        final String baseDirPath = root.getPath();
-        final String path = baseDirPath + "/" + pathPart;
-        VirtualFile file = findFile(path);
-        if (file == null) {
-          // check example dir too
-          // TODO(pq): remove when `example` is a content root: https://github.com/flutter/flutter-intellij/issues/2519
-          final String exampleDirRelativePath = baseDirPath + "/example/" + pathPart;
-          file = findFile(exampleDirRelativePath);
-        }
-        if (file != null) {
-          return file;
-        }
+      final String baseDirPath = root.getPath();
+      final String path = baseDirPath + "/" + pathPart;
+      VirtualFile file = findFile(path);
+      if (file == null) {
+        // check example dir too
+        // TODO(pq): remove when `example` is a content root: https://github.com/flutter/flutter-intellij/issues/2519
+        final String exampleDirRelativePath = baseDirPath + "/example/" + pathPart;
+        file = findFile(exampleDirRelativePath);
+      }
+      if (file != null) {
+        return file;
       }
     }
 

src/io/flutter/dart/FlutterRequestUtilities.java

@@ -113,6 +113,6 @@ private static JsonObject buildJsonObjectRequest(String idValue, String methodVa
    */
   @NotNull
   private static String getClassName(@Nullable Object object) {
-    return object != null && object.getClass().getName() != null ? object.getClass().getName() : "null";
+    return object != null ? object.getClass().getName() : "null";
   }
 }

src/io/flutter/editor/FlutterIconLineMarkerProvider.java

@@ -239,7 +239,6 @@ private IconInfo findStandardDefinition(@NotNull String className,
 
   @Nullable
   private Icon findStandardIconFromDef(@NotNull String name, @NotNull IconInfo iconDef, @NotNull String path) {
-    assert LocalFileSystem.getInstance() != null;
     final VirtualFile virtualFile = LocalFileSystem.getInstance().findFileByPath(path);
     if (virtualFile == null) return null;
     final IconPreviewGenerator generator = new IconPreviewGenerator(virtualFile.getPath());
@@ -310,7 +309,6 @@ private LineMarkerInfo<PsiElement> createLineMarker(@Nullable PsiElement element
 
   @Nullable
   private IconInfo findDefinition(@NotNull String className, @NotNull String iconName, @NotNull Project project, @NotNull String path) {
-    assert LocalFileSystem.getInstance() != null;
     final VirtualFile virtualFile = LocalFileSystem.getInstance().findFileByPath(path);
     if (virtualFile == null) return null;
     final PsiFile psiFile = PsiManager.getInstance(project).findFile(virtualFile);
@@ -324,7 +322,6 @@ private IconInfo findDefinition(@NotNull String className, @NotNull String iconN
 
   @Nullable
   private Icon findIconFromDef(@NotNull String iconClassName, @NotNull IconInfo iconDef, @NotNull String path) {
-    assert LocalFileSystem.getInstance() != null;
     final VirtualFile virtualFile = LocalFileSystem.getInstance().findFileByPath(path);
     if (virtualFile == null) return null;
     VirtualFile parent = virtualFile;

src/io/flutter/jxbrowser/EmbeddedJxBrowser.java

@@ -212,7 +212,6 @@ private EmbeddedJxBrowser(@NotNull Project project) {
   private @Nullable String jxBrowserErrorFromFailedReason(@Nullable InstallationFailedReason failedReason) {
     if (failedReason == null) return null;
     final FailureType failureType = failedReason.failureType;
-    if (failureType == null) return null;
     return switch (failureType) {
       case SYSTEM_INCOMPATIBLE -> "System is incompatible with JX Browser";
       case FILE_DOWNLOAD_FAILED -> "JX Browser file download failed";

src/io/flutter/run/FlutterReloadManager.java

@@ -372,9 +372,7 @@ private void restartApp(@NotNull FlutterApp app, @NotNull String reason) {
       });
 
       final FlutterDevice device = app.device();
-      if (device != null) {
-        device.bringToFront();
-      }
+      device.bringToFront();
     }
   }
 

src/io/flutter/run/bazelTest/BazelTestFields.java

@@ -185,7 +185,6 @@ GeneralCommandLine getLaunchCommand(@NotNull final Project project,
     final Workspace workspace = getWorkspace(project);
 
     final String launchingScript = getTestScriptFromWorkspace(project);
-    assert launchingScript != null; // already checked
 
     final GeneralCommandLine commandLine = new GeneralCommandLine().withWorkDirectory(workspace.getRoot().getPath());
     commandLine.setCharset(StandardCharsets.UTF_8);

src/io/flutter/run/daemon/DevToolsServerTask.java

@@ -217,7 +217,7 @@ private CompletableFuture<DevToolsInstance> checkForDartPluginInitiatedDevToolsW
     String[] parts = dartPluginUri.split(":");
     String host = parts[0];
     Integer port = Integer.parseInt(parts[1]);
-    if (host == null || port == null) {
+    if (host == null) {
       return null;
     }
 

src/io/flutter/run/daemon/DevToolsService.java

@@ -120,11 +120,8 @@ private void startServer(boolean forceRestart) {
   }
 
   private boolean devToolsInstanceExists() {
-    if (devToolsFutureRef != null) {
-      final CompletableFuture<DevToolsInstance> devToolsFuture = devToolsFutureRef.get();
-      return devToolsFuture != null && devToolsFuture.isDone() && !devToolsFuture.isCompletedExceptionally();
-    }
-    return false;
+    final CompletableFuture<DevToolsInstance> devToolsFuture = devToolsFutureRef.get();
+    return devToolsFuture != null && devToolsFuture.isDone() && !devToolsFuture.isCompletedExceptionally();
   }
 
   private CompletableFuture<Boolean> pubActivateDevTools(FlutterSdk sdk) {

src/io/flutter/sdk/FlutterPluginsLibraryManager.java

@@ -125,7 +125,6 @@ private void updateFlutterPluginsImpl() {
     ReadAction.nonBlocking(() -> getFlutterPluginPaths(PubRoots.forProject(project)))
       .expireWith(FlutterDartAnalysisServer.getInstance(project))
       .finishOnUiThread(ModalityState.nonModal(), flutterPluginPaths -> {
-        if (flutterPluginPaths == null) return;
         final Set<String> flutterPluginUrls = new HashSet<>();
         for (String path : flutterPluginPaths) {
           flutterPluginUrls.add(VfsUtilCore.pathToUrl(path));

src/io/flutter/sdk/FlutterSdk.java

@@ -295,7 +295,7 @@ public FlutterCommand flutterRun(@NotNull PubRoot root,
     final List<String> args = new ArrayList<>();
     args.add("--machine");
     FlutterSettings settings = FlutterSettings.getInstance();
-    if (settings != null && settings.isVerboseLogging()) {
+    if (settings.isVerboseLogging()) {
       args.add("--verbose");
     }
 

src/io/flutter/utils/AddToAppUtils.java

@@ -69,12 +69,10 @@ public void modulesAdded(@NotNull Project proj, @NotNull List<? extends Module>
     }
     else {
       Collection<ProjectType> projectTypes = ProjectTypeService.getProjectTypes(project);
-      if (projectTypes != null) {
-        for (ProjectType projectType : projectTypes) {
-          if (projectType != null && "Android".equals(projectType.getId())) {
-            // This is an add-to-app project.
-            connection.subscribe(DebuggerManagerListener.TOPIC, makeAddToAppAttachListener(project));
-          }
+      for (ProjectType projectType : projectTypes) {
+        if (projectType != null && "Android".equals(projectType.getId())) {
+          // This is an add-to-app project.
+          connection.subscribe(DebuggerManagerListener.TOPIC, makeAddToAppAttachListener(project));
         }
       }
     }

src/io/flutter/utils/FlutterModuleUtils.java

@@ -342,7 +342,6 @@ public static List<Module> findModulesWithFlutterContents(@NotNull Project proje
   // Return true if there is a module with the same name as the project plus the Android suffix.
   public static boolean hasAndroidModule(@NotNull Project project) {
     for (PubRoot root : PubRoots.forProject(project)) {
-      assert root != null;
       String name = PubspecYamlUtil.getDartProjectName(root.getPubspec());
       String moduleName = name + "_android";
       for (Module module : FlutterModuleUtils.getModules(project)) {

src/io/flutter/vmService/DartVmServiceDebugProcess.java

@@ -185,9 +185,12 @@ public void logError(final String message) {
 
       @Override
       public void logError(final String message, final Throwable exception) {
-        if (!getVmConnected() || getSession() == null) {
+        if (!getVmConnected()) {
           return;
         }
+        else {
+          getSession();
+        }
         if (message != null) {
           getSession().getConsoleView().print(message.trim() + "\n", ConsoleViewContentType.ERROR_OUTPUT);
         }

src/io/flutter/vmService/VmServiceWrapper.java

@@ -176,11 +176,10 @@ public void received(final Isolate isolate) {
     });
 
     FlutterSdkVersion flutterSdkVersion = null;
-    if (myDebugProcess.getSession() != null) {
-      final FlutterSdk flutterSdk = FlutterSdk.getFlutterSdk(myDebugProcess.getSession().getProject());
-      if (flutterSdk != null) {
-        flutterSdkVersion = flutterSdk.getVersion();
-      }
+    myDebugProcess.getSession();
+    final FlutterSdk flutterSdk = FlutterSdk.getFlutterSdk(myDebugProcess.getSession().getProject());
+    if (flutterSdk != null) {
+      flutterSdkVersion = flutterSdk.getVersion();
     }
 
     if (flutterSdkVersion != null && flutterSdkVersion.canUseToolEventStream()) {
@@ -407,7 +406,6 @@ public void received(Isolate response) {
                 }
 
                 Set<CanonicalBreakpoint> mappedCanonicalBreakpoints = new HashSet<>();
-                assert breakpoints != null;
                 for (Breakpoint breakpoint : breakpoints) {
                   Object location = breakpoint.getLocation();
                   // In JIT mode, locations will be unresolved at this time since files aren't compiled until they are used.
@@ -613,7 +611,6 @@ public void onError(RPCError error) {
 
   private String getResolvedUri(@NotNull XSourcePosition position) {
     XDebugSession session = myDebugProcess.getSession();
-    assert session != null;
     VirtualFile file =
       WorkspaceCache.getInstance(session.getProject()).isBazel() ? position.getFile() : position.getFile().getCanonicalFile();
     assert file != null;