fix: Remove LSP4J libraries.

Signed-off-by: azerr <azerr@redhat.com>

Author: angelozerr

build.gradle.kts

@@ -26,7 +26,6 @@ plugins {
 group = prop("pluginGroup")
 version = prop("pluginVersion")
 
-val lsp4jVersion = prop("lsp4jVersion")
 val lsp4jDebugVersion = prop("lsp4jDebugVersion")
 val flexmarkVersion = prop("flexmarkVersion")
 
@@ -74,6 +73,7 @@ dependencies {
         // Plugin Dependencies. Uses `platformPlugins` property from the gradle.properties file for plugin from JetBrains Marketplace.
         plugins(properties("platformPlugins").map { it.split(',') })
 
+        // Tu ajoutes les modules LSP4J de la plateforme JetBrains
         if (ideaVersionInt >= 252) {
             // Since 2025.2, JetBrains moved spellchecker in a new "intellij.spellchecker" module
             bundledModule("intellij.spellchecker")
@@ -84,12 +84,6 @@ dependencies {
         testFramework(TestFrameworkType.Platform)
     }
 
-    implementation("org.eclipse.lsp4j:org.eclipse.lsp4j:$lsp4jVersion") {
-        exclude(group = "org.eclipse.lsp4j", module="org.eclipse.lsp4j.jsonrpc")
-    }
-    implementation("org.eclipse.lsp4j:org.eclipse.lsp4j.jsonrpc:$lsp4jVersion") {
-        exclude(group = "com.google.code.gson", module = "gson")
-    }
     implementation("org.eclipse.lsp4j:org.eclipse.lsp4j.debug:$lsp4jDebugVersion") {
         exclude(group = "org.eclipse.lsp4j", module = "org.eclipse.lsp4j.jsonrpc.debug")
     }
@@ -109,7 +103,7 @@ dependencies {
 // Set the JVM language level used to build the project.
 kotlin {
     jvmToolchain {
-        languageVersion = JavaLanguageVersion.of(17)
+        languageVersion = JavaLanguageVersion.of(21)
         vendor = JvmVendorSpec.JETBRAINS
     }
 }

gradle.properties

@@ -12,9 +12,11 @@ pluginSinceBuild=242
 #pluginUntilBuild=243.*
 
 # IntelliJ Platform Properties -> https://plugins.jetbrains.com/docs/intellij/tools-gradle-intellij-plugin.html#configuration-intellij-extension
-platformType=IC
-platformVersion=2024.2
-platformBundledPlugins=org.jetbrains.plugins.textmate,com.intellij.properties,org.jetbrains.plugins.terminal
+#platformType=IU
+#platformVersion=253.27864.23
+platformType=IU
+platformVersion=253.28294.169
+platformBundledPlugins=org.jetbrains.plugins.textmate,com.intellij.properties,org.jetbrains.plugins.terminal,com.intellij.modules.lsp
 
 # Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 platformPlugins=com.redhat.devtools.intellij.telemetry:1.2.1.62

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

@@ -283,12 +283,13 @@
     </description>
 
     <depends>com.intellij.modules.platform</depends>
+    <depends>com.intellij.modules.lsp</depends>
     <depends optional="true" config-file="plugin-textmate.xml">org.jetbrains.plugins.textmate</depends>
     <depends optional="true" config-file="plugin-telemetry.xml">com.redhat.devtools.intellij.telemetry</depends>
     <depends optional="true" config-file="plugin-json.xml">com.intellij.modules.json</depends>
     <depends optional="true" config-file="plugin-terminal.xml">org.jetbrains.plugins.terminal</depends>
     <!-- please see http://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/build_number_ranges.html for description -->
-    <idea-version since-build="242.*"/>
+    <idea-version since-build="252.*"/>
 
     <!-- Server Installer support -->
     <extensionPoints>