Fix[init]: unexpectedly preload LWJGL

Migrating token storage to keychain accidentally causes LWJGL to be
preloaded, making Fabric fails to init.
Add JNI library PojavAccountJNI to do the task of sending access token
from keychain to JVM space.

JavaApp/src/main/java/net/kdt/pojavlaunch/value/MinecraftAccount.java

@@ -44,7 +44,7 @@ public static MinecraftAccount load(String name) throws IOException, JsonSyntaxE
     }
 
     static {
-        System.load(System.getenv("BUNDLE_PATH") + "/PojavLauncher");
+        System.loadLibrary("PojavAccountJNI");
     }
     public static native String getAccessTokenFromKeychain(String xuid);
 }

Natives/CMakeLists.txt

@@ -90,6 +90,12 @@ target_link_libraries(AFNetworking
   "-framework UIKit"
 )
 
+# MinecraftAccount JNI
+add_library(PojavAccountJNI SHARED
+  authenticator/MinecraftAccountJNI.m
+)
+target_link_libraries(PojavAccountJNI)
+
 # PojavLauncher
 add_executable(PojavLauncher
   dyld_bypass_validation.m

Natives/authenticator/MicrosoftAuthenticator.m

@@ -289,17 +289,3 @@ - (NSDictionary *)tokenData {
 }
 
 @end
-
-JNIEXPORT jstring JNICALL Java_net_kdt_pojavlaunch_value_MinecraftAccount_getAccessTokenFromKeychain(JNIEnv *env, jclass clazz, jstring xuid) {
-    // This function should only be called once
-    static BOOL called = NO;
-    if (called) {
-        abort();
-    }
-    called = YES;
-
-    const char *xuidC = (*env)->GetStringUTFChars(env, xuid, 0);
-    NSString *accessToken = [MicrosoftAuthenticator tokenDataOfProfile:@(xuidC)][@"accessToken"];
-    (*env)->ReleaseStringUTFChars(env, xuid, xuidC);
-    return (*env)->NewStringUTF(env, accessToken.UTF8String);
-}

Natives/authenticator/MinecraftAccountJNI.m

@@ -0,0 +1,16 @@
+#import "BaseAuthenticator.h"
+#include "jni.h"
+
+JNIEXPORT jstring JNICALL Java_net_kdt_pojavlaunch_value_MinecraftAccount_getAccessTokenFromKeychain(JNIEnv *env, jclass clazz, jstring xuid) {
+    // This function should only be called once
+    static BOOL called = NO;
+    if (called) {
+        abort();
+    }
+    called = YES;
+
+    const char *xuidC = (*env)->GetStringUTFChars(env, xuid, 0);
+    NSString *accessToken = [NSClassFromString(@"MicrosoftAuthenticator") tokenDataOfProfile:@(xuidC)][@"accessToken"];
+    (*env)->ReleaseStringUTFChars(env, xuid, xuidC);
+    return (*env)->NewStringUTF(env, accessToken.UTF8String);
+}