Fixed: Memory is not released at some points in UTF16String

Author: itsaky

android-tree-sitter/src/main/cpp/ts_tree.cc

@@ -50,11 +50,11 @@ extern "C" JNIEXPORT jobjectArray JNICALL Java_com_itsaky_androidide_treesitter_
     uint32_t count;
     TSRange *ranges = ts_tree_get_changed_ranges((TSTree*) oldTree, (TSTree*) tree, &count);
     if (count == 0) {
-      return NULL;
+      return nullptr;
     }
 
     jclass klass = env->FindClass("com/itsaky/androidide/treesitter/TSRange");
-    jobjectArray arr = env->NewObjectArray(count, klass, NULL);
+    jobjectArray arr = env->NewObjectArray(count, klass, nullptr);
     for (uint32_t i = 0; i < count; i++) {
       TSRange *r = (ranges + i);
       env->SetObjectArrayElement(arr, i, _marshalRange(env, *r));

android-tree-sitter/src/main/cpp/utf16str/UTF16String.cpp

@@ -90,6 +90,7 @@ UTF16String *UTF16String::append(JNIEnv *env, jstring src, jint from, jint len)
         auto c = *(chars + i);
         append(c);
     }
+    FNI_ReleaseStringChars(chars);
     return this;
 }
 
@@ -113,7 +114,8 @@ UTF16String *UTF16String::insert(JNIEnv *env, jstring src, jint index) {
         insert(index + i, c);
     }
 
-    cout << endl;
+    FNI_ReleaseStringChars(chars);
+
     return this;
 }
 
@@ -153,6 +155,9 @@ UTF16String *UTF16String::replace_bytes(JNIEnv *env, jint start, jint end, jstri
         delete_bytes(i, end);
     }
 
+    FNI_ReleaseStringChars(chars);
+    delete [] bytes;
+
     return this;
 }