fix exception when hotswapping with IntelliJ 2023.1 using the new UI, version 2.5, closes #9

build.gradle.kts

@@ -12,7 +12,7 @@ repositories {
 // Configure Gradle IntelliJ Plugin
 intellij {
     pluginName.set("Single Hotswap")
-    version.set("2022.3")
+    version.set("2023.1")
     type.set("IC") // Target IDE Platform
     plugins.set(listOf("Kotlin", "Groovy", "java", "properties"))
 

src/main/java/net/labymod/intellij/singlehotswap/actions/SingleHotswapAction.java

@@ -15,8 +15,10 @@
 import com.intellij.openapi.compiler.CompilerManager;
 import com.intellij.openapi.components.ServiceManager;
 import com.intellij.openapi.fileEditor.FileDocumentManager;
+import com.intellij.openapi.module.Module;
 import com.intellij.openapi.progress.ProgressManager;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.roots.ProjectFileIndex;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.psi.PsiFile;
 import com.intellij.util.ui.MessageCategory;
@@ -110,6 +112,7 @@ public void actionPerformed(@NotNull AnActionEvent event) {
             // Check if it is possible to hotswap the opened file
             if (!context.isPossible(psiFile)) {
                 this.notifyUser("Invalid file to hotswap: " + psiFile.getName(), NotificationType.WARNING);
+                return;
             }
 
             // Get debugger session
@@ -127,6 +130,12 @@ public void actionPerformed(@NotNull AnActionEvent event) {
             ClassFile outputFile = context.getClassFile(psiFile);
             VirtualFile sourceFile = psiFile.getVirtualFile();
 
+            Module module = ProjectFileIndex.getInstance(project).getModuleForFile(sourceFile);
+            if (module == null) {
+                this.notifyUser("Could not find module for file: " + sourceFile.getName(), NotificationType.WARNING);
+                return;
+            }
+
             // Execute progress
             HotSwapProgressImpl progress = new HotSwapProgressImpl(project);
             Application application = ApplicationManager.getApplication();
@@ -139,7 +148,7 @@ public void actionPerformed(@NotNull AnActionEvent event) {
                         long start = System.currentTimeMillis();
 
                         // Compile the current opened file
-                        List<ClassFile> classFiles = compiler.compile(sourceFile, outputFile);
+                        List<ClassFile> classFiles = compiler.compile(module, sourceFile, outputFile);
                         if (classFiles.isEmpty()) {
                             String message = "Could not compile " + psiFile.getName();
                             progress.addMessage(debugger, MessageCategory.ERROR, message);

src/main/java/net/labymod/intellij/singlehotswap/compiler/AbstractCompiler.java

@@ -1,5 +1,6 @@
 package net.labymod.intellij.singlehotswap.compiler;
 
+import com.intellij.openapi.module.Module;
 import com.intellij.openapi.vfs.VirtualFile;
 import net.labymod.intellij.singlehotswap.hotswap.ClassFile;
 import net.labymod.intellij.singlehotswap.hotswap.Context;
@@ -30,5 +31,5 @@ public AbstractCompiler(Context context) {
      * @return A list of class files that were compiled. (More than one class file can be compiled if the source file contains inner classes.)
      * @throws Exception If an error occurs while compiling the source file.
      */
-    public abstract List<ClassFile> compile(VirtualFile sourceFile, ClassFile outputFile) throws Exception;
+    public abstract List<ClassFile> compile(Module module, VirtualFile sourceFile, ClassFile outputFile) throws Exception;
 }

src/main/java/net/labymod/intellij/singlehotswap/compiler/impl/BuiltInJavaCompiler.java

@@ -6,7 +6,6 @@
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.roots.ModuleRootManager;
-import com.intellij.openapi.roots.ProjectFileIndex;
 import com.intellij.openapi.util.io.FileUtil;
 import com.intellij.openapi.vfs.VfsUtil;
 import com.intellij.openapi.vfs.VirtualFile;
@@ -35,15 +34,11 @@ public BuiltInJavaCompiler(Context context) {
     }
 
     @Override
-    public List<ClassFile> compile(VirtualFile sourceFile, ClassFile outputFile) throws Exception {
+    public List<ClassFile> compile(Module module, VirtualFile sourceFile, ClassFile outputFile) throws Exception {
         File file = VfsUtil.virtualToIoFile(sourceFile);
 
         // Find current module
         Project project = outputFile.getProject();
-        Module module = ProjectFileIndex.SERVICE.getInstance(project).getModuleForFile(sourceFile);
-        if (module == null) {
-            return new ArrayList<>();
-        }
 
         // Find the class files and the class version
         // We take the java version from the previously compiled class file by reading the header

src/main/java/net/labymod/intellij/singlehotswap/compiler/impl/DefaultCompiler.java

@@ -3,15 +3,13 @@
 import com.intellij.debugger.settings.DebuggerSettings;
 import com.intellij.openapi.module.Module;
 import com.intellij.openapi.project.Project;
-import com.intellij.openapi.roots.ProjectFileIndex;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.task.ProjectTaskManager;
 import com.intellij.task.ProjectTaskManager.Result;
 import com.intellij.task.impl.ModuleFilesBuildTaskImpl;
 import net.labymod.intellij.singlehotswap.compiler.AbstractCompiler;
 import net.labymod.intellij.singlehotswap.hotswap.ClassFile;
 import net.labymod.intellij.singlehotswap.hotswap.Context;
-import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -30,7 +28,7 @@ public DefaultCompiler(Context context) {
     }
 
     @Override
-    public List<ClassFile> compile(VirtualFile sourceFile, ClassFile outputFile) throws Exception {
+    public List<ClassFile> compile(Module module, VirtualFile sourceFile, ClassFile outputFile) throws Exception {
         List<ClassFile> classFiles = new ArrayList<>();
 
         Project project = outputFile.getProject();
@@ -44,13 +42,6 @@ public List<ClassFile> compile(VirtualFile sourceFile, ClassFile outputFile) thr
         // IntelliJ always reloads every single file that is referenced by the target class.
         settings.RUN_HOTSWAP_AFTER_COMPILE = DebuggerSettings.RUN_HOTSWAP_NEVER;
 
-        // Create task
-        ProjectFileIndex index = ProjectFileIndex.SERVICE.getInstance(project);
-        @Nullable Module module = index.getModuleForFile(sourceFile, false);
-        if (module == null) {
-            return classFiles;
-        }
-
         // Compile virtual file
         ModuleFilesBuildTaskImpl task = new ModuleFilesBuildTaskImpl(module, true, sourceFile);
         Result result = projectTaskManager.run(task).blockingGet(3, TimeUnit.MINUTES);

src/main/resources/META-INF/plugin.xml

@@ -1,7 +1,7 @@
 <idea-plugin>
     <id>net.labymod.intellij.singlehotswap</id>
     <name>Single Hotswap</name>
-    <version>2.4</version>
+    <version>2.5</version>
     <vendor email="labystudio@gmail.com" url="https://www.labymod.net">LabyMedia</vendor>
 
     <idea-version since-build="203.000"/>
@@ -53,7 +53,11 @@
 
     <change-notes>
         <![CDATA[
-    v2.4 (2022-03-06):
+    v2.5 (2023-04-17):
+    <ul>
+      <li>Fixed exception when hotswapping with IntelliJ 2023.1 using the new UI</li>
+    </ul>
+    v2.4 (2023-03-06):
     <ul>
       <li>Fixed an issue where the background task wouldn't finish if an error occurred</li>
     </ul>