in src/main/java/org/apache/sling/scripting/javascript/internal/RhinoJavaScriptEngine.java [212:218]
private void resetBoundProperties(Scriptable scope, Map<String, Object> properties) {
if (scope != null && properties != null && properties.size() > 0) {
for (Entry<String, Object> entry : properties.entrySet()) {
ScriptableObject.putProperty(scope, entry.getKey(), entry.getValue());
}
}
}