private void runInitScriptIfRequired() {
        if (initScriptPath != null) {
            try {
                URL resource = Thread.currentThread().getContextClassLoader().getResource(initScriptPath);
                if (resource == null) {
                    logger().warn("Could not load classpath init script: {}", initScriptPath);
                    throw new ScriptLoadException(
                        "Could not load classpath init script: " + initScriptPath + ". Resource not found."
                    );
                }
                String cql = IOUtils.toString(resource, StandardCharsets.UTF_8);
                DatabaseDelegate databaseDelegate = getDatabaseDelegate();
                ScriptUtils.executeDatabaseScript(databaseDelegate, initScriptPath, cql);
            } catch (IOException e) {
                logger().warn("Could not load classpath init script: {}", initScriptPath);
                throw new ScriptLoadException("Could not load classpath init script: " + initScriptPath, e);
            } catch (ScriptException e) {
                logger().error("Error while executing init script: {}", initScriptPath, e);
                throw new ScriptUtils.UncategorizedScriptException(
                    "Error while executing init script: " + initScriptPath,
                    e
                );
            }
        }
    }
Load init script content and apply it to the database if initScriptPath is set
modules/cassandra/src/main/java/org/testcontainers/containers/CassandraContainer.java