From abc2b2957a7079452ed6ec7175dbf1d97b039fbf Mon Sep 17 00:00:00 2001
From: "neoforged-renovate[bot]"
 <174042230+neoforged-renovate[bot]@users.noreply.github.com>
Date: Wed, 17 Dec 2025 13:05:38 +0000
Subject: [PATCH 1/2] Update dependency
 com.jetbrains.intellij.java:java-psi-impl to v253

---
 gradle.properties | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gradle.properties b/gradle.properties
index 91dfa49..a02fc1d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 
-intellij_version=233.11799.300
+intellij_version=253.28294.334
 jetbrains_annotations_version=24.1.0
 picocli_version=4.7.6
 junit_version=5.10.3

From 9a82fe19da76e562cd041632e4d0896f1f5edcad Mon Sep 17 00:00:00 2001
From: Matyrobbrt <matyrobbrt@gmail.com>
Date: Wed, 17 Dec 2025 16:14:39 +0200
Subject: [PATCH 2/2] Fixes

---
 api/build.gradle                              |  3 +++
 .../cli/intellij/IntelliJEnvironmentImpl.java | 21 ++++++++++++++++---
 gradle.properties                             |  3 +--
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/api/build.gradle b/api/build.gradle
index 24814ba..1feecee 100644
--- a/api/build.gradle
+++ b/api/build.gradle
@@ -17,7 +17,10 @@ java {
 }
 
 dependencies {
+    api "com.jetbrains.intellij.platform:core:$intellij_version"
+    api "com.jetbrains.intellij.platform:util:$intellij_version"
     api "com.jetbrains.intellij.java:java-psi-impl:$intellij_version"
+    api "com.jetbrains.intellij.java:java-indexing-impl:$intellij_version"
     api "info.picocli:picocli:$picocli_version"
     api "net.neoforged.installertools:problems-api:$problems_api_version"
     compileOnly "org.jetbrains:annotations:$jetbrains_annotations_version"
diff --git a/cli/src/main/java/net/neoforged/jst/cli/intellij/IntelliJEnvironmentImpl.java b/cli/src/main/java/net/neoforged/jst/cli/intellij/IntelliJEnvironmentImpl.java
index 9356f3a..07742fb 100644
--- a/cli/src/main/java/net/neoforged/jst/cli/intellij/IntelliJEnvironmentImpl.java
+++ b/cli/src/main/java/net/neoforged/jst/cli/intellij/IntelliJEnvironmentImpl.java
@@ -3,7 +3,9 @@
 import com.intellij.core.CoreApplicationEnvironment;
 import com.intellij.core.JavaCoreApplicationEnvironment;
 import com.intellij.core.JavaCoreProjectEnvironment;
+import com.intellij.lang.MetaLanguage;
 import com.intellij.lang.java.JavaLanguage;
+import com.intellij.lang.jvm.JvmMetaLanguage;
 import com.intellij.lang.jvm.facade.JvmElementProvider;
 import com.intellij.mock.MockProject;
 import com.intellij.openapi.Disposable;
@@ -57,12 +59,12 @@ public IntelliJEnvironmentImpl(Logger logger) throws IOException {
         this.logger = logger;
         System.setProperty("java.awt.headless", "true");
 
-        tempDir = Files.createTempDirectory("jst");
+        tempDir = Files.createTempDirectory("jst").toAbsolutePath();
         this.rootDisposable = Disposer.newDisposable();
-        System.setProperty("idea.home.path", tempDir.toAbsolutePath().toString());
+        System.setProperty("idea.home.path", tempDir.toString());
 
         // IDEA requires a config directory, even if it's empty
-        PathManager.setExplicitConfigPath(tempDir.toAbsolutePath().toString());
+        PathManager.setExplicitConfigPath(tempDir.toString());
         Registry.markAsLoaded(); // Avoids warnings about config not being loaded
 
         var appEnv = new JavaCoreApplicationEnvironment(rootDisposable) {
@@ -179,7 +181,20 @@ private void initAppExtensionsAndServices(JavaCoreApplicationEnvironment appEnv)
         CoreApplicationEnvironment.registerExtensionPoint(appExtensions, PsiAugmentProvider.EP_NAME, PsiAugmentProvider.class);
         CoreApplicationEnvironment.registerExtensionPoint(appExtensions, JavaModuleSystem.EP_NAME, JavaModuleSystem.class);
         CoreApplicationEnvironment.registerExtensionPoint(appExtensions, TreeGenerator.EP_NAME, TreeGenerator.class);
+        CoreApplicationEnvironment.registerExtensionPoint(appExtensions, MetaLanguage.EP_NAME, MetaLanguage.class);
+
         appExtensions.getExtensionPoint(TreeGenerator.EP_NAME).registerExtension(new JavaTreeGenerator(), rootDisposable);
+        appExtensions.getExtensionPoint(MetaLanguage.EP_NAME).registerExtension(createInstance(JvmMetaLanguage.class), rootDisposable);
+    }
+
+    private static <T> T createInstance(Class<T> clazz) {
+        try {
+            var ctor = clazz.getDeclaredConstructor();
+            ctor.setAccessible(true);
+            return ctor.newInstance();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
     }
 
 }
diff --git a/gradle.properties b/gradle.properties
index a02fc1d..9bc8c01 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,4 @@
-
-intellij_version=253.28294.334
+intellij_version=251.29188.22
 jetbrains_annotations_version=24.1.0
 picocli_version=4.7.6
 junit_version=5.10.3