fix(serialize-xml): custom path generation

commons-serialize-xml/src/main/java/io/gitlab/jfronny/commons/serialize/xml/wrapper/XmlReader.java

@@ -369,14 +369,41 @@ public class XmlReader extends SerializeReader<IOException, XmlReader> implement
         return result;
     }
 
+    private String getPath(boolean usePreviousPath) {
+        if (nextTagNamePath != null) return nextTagNamePath;
+        StringBuilder result = new StringBuilder().append('$');
+        for (int i = 0; i < stackSize; i++) {
+            int scope = stack[i];
+            switch (scope) {
+                case WrapperScope.ARRAY -> {
+                    int pathIndex = pathIndices[i];
+                    // If index is last path element it points to next array element; have to decrement
+                    if (usePreviousPath && pathIndex > 0 && i == stackSize - 1) {
+                        pathIndex--;
+                    }
+                    result.append('[').append(pathIndex).append(']');
+                }
+                case WrapperScope.OBJECT -> {
+                    result.append('.');
+                    if (pathNames[i] != null) {
+                        result.append(pathNames[i]);
+                    }
+                }
+                case WrapperScope.OBJECT_VALUE_WRAPPER, WrapperScope.OBJECT_VALUE_WRAPPER_USED, WrapperScope.DOCUMENT -> {}
+                default -> throw new AssertionError("Unknown scope value: " + scope);
+            }
+        }
+        return result.toString();
+    }
+
     @Override
     public String getPath() {
-        return nextTagName == null ? reader.getPath() : nextTagNamePath;
+        return getPath(false);
     }
 
     @Override
     public String getPreviousPath() {
-        return getPath(); // TODO this should be different when handling arrays
+        return getPath(true);
     }
 
     @Override