Fix Paper library detection

Author: DenWav

src/main/kotlin/platform/architectury/framework/ArchitecturyPresentationProvider.kt

@@ -34,15 +34,13 @@ class ArchitecturyPresentationProvider : LibraryPresentationProvider<LibraryVers
 
     override fun detect(classesRoots: MutableList<VirtualFile>): LibraryVersionProperties? {
         for (classesRoot in classesRoots) {
-            if (classesRoot.name.endsWith(".jar")) {
-                runCatching {
-                    val jar = JarFile(classesRoot.localFile)
-                    val isArchitecturyLib = jar.entries().asSequence().any {
-                        it.name == "architectury.common.json"
-                    }
-                    if (isArchitecturyLib) {
-                        return LibraryVersionProperties()
-                    }
+            if (!classesRoot.name.endsWith(".jar")) {
+                continue
+            }
+            runCatching {
+                JarFile(classesRoot.localFile).use { jar ->
+                    jar.getEntry("architectury.common.json") ?: return@runCatching
+                    return LibraryVersionProperties()
                 }
             }
         }

src/main/kotlin/platform/bukkit/framework/ModernPaperPresentationProvider.kt

@@ -0,0 +1,55 @@
+/*
+ * Minecraft Development for IntelliJ
+ *
+ * https://mcdev.io/
+ *
+ * Copyright (C) 2025 minecraft-dev
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, version 3.0 only.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.demonwav.mcdev.platform.bukkit.framework
+
+import com.demonwav.mcdev.asset.PlatformAssets
+import com.demonwav.mcdev.util.localFile
+import com.google.gson.Gson
+import com.intellij.framework.library.LibraryVersionProperties
+import com.intellij.openapi.roots.libraries.LibraryPresentationProvider
+import com.intellij.openapi.vfs.VirtualFile
+import java.util.jar.JarFile
+
+class ModernPaperPresentationProvider : LibraryPresentationProvider<LibraryVersionProperties>(PAPER_LIBRARY_KIND) {
+
+    override fun getIcon(properties: LibraryVersionProperties?) = PlatformAssets.PAPER_ICON
+
+    override fun detect(classesRoots: List<VirtualFile>): LibraryVersionProperties? {
+        for (classesRoot in classesRoots) {
+            if (!classesRoot.name.endsWith(".jar")) {
+                continue
+            }
+            runCatching {
+                JarFile(classesRoot.localFile).use { jar ->
+                    jar.getEntry("io/papermc/paper/ServerBuildInfo.class") ?: return@runCatching
+                    val versionJson = jar.getEntry("apiVersioning.json") ?: return@runCatching
+                    jar.getInputStream(versionJson).use { stream ->
+                        stream.reader().use { reader ->
+                            val map = Gson().fromJson(reader, Map::class.java)
+                            return LibraryVersionProperties(map["currentApiVersion"] as String)
+                        }
+                    }
+                }
+            }
+        }
+        return null
+    }
+}

src/main/kotlin/platform/fabric/framework/FabricPresentationProvider.kt

@@ -33,15 +33,13 @@ class FabricPresentationProvider : LibraryPresentationProvider<LibraryVersionPro
 
     override fun detect(classesRoots: MutableList<VirtualFile>): LibraryVersionProperties? {
         for (classesRoot in classesRoots) {
-            if (classesRoot.name.endsWith(".jar")) {
-                runCatching {
-                    val jar = JarFile(classesRoot.localFile)
-                    val isFabricLib = jar.entries().asSequence().any {
-                        it.name == "net/fabricmc/loader/api/FabricLoader.class"
-                    }
-                    if (isFabricLib) {
-                        return LibraryVersionProperties()
-                    }
+            if (!classesRoot.name.endsWith(".jar")) {
+                continue
+            }
+            runCatching {
+                JarFile(classesRoot.localFile).use { jar ->
+                    jar.getEntry("net/fabricmc/loader/api/FabricLoader.class") ?: return@runCatching
+                    return LibraryVersionProperties()
                 }
             }
         }

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

@@ -520,6 +520,9 @@
             implementation="com.demonwav.mcdev.platform.bukkit.framework.OldPaperPresentationProvider"/>
         <library.presentationProvider
             implementation="com.demonwav.mcdev.platform.bukkit.framework.PaperPresentationProvider"/>
+        <library.presentationProvider
+                implementation="com.demonwav.mcdev.platform.bukkit.framework.ModernPaperPresentationProvider"/>
+
         <!--endregion-->
 
         <!--region SPONGE-->