code: def modify_context(
      self,
      uris: List[str],
      runtime_env_dict: Dict,
      context: RuntimeEnvContext,
      logger: Optional[logging.Logger] = default_logger,
  ):
      for uri in uris:
          module_dir = self._get_local_dir_from_uri(uri)
          if not module_dir.exists():
              raise ValueError(
                  f"Local directory {module_dir} for URI {uri} does "
                  "not exist on the cluster. Something may have gone wrong while "
                  "downloading, unpacking or installing the java jar files."
              )
          context.java_jars.append(str(module_dir))
  
file_path: ray/python/ray/_private/runtime_env/java_jars.py
imports: import logging
  import os
  from typing import Dict, List, Optional
  from ray._private.gcs_utils import GcsAioClient
  from ray._private.runtime_env.context import RuntimeEnvContext
  from ray._private.runtime_env.packaging import delete_package, download_and_unpack_package, get_local_dir_from_uri, is_jar_uri
  from ray._private.runtime_env.plugin import RuntimeEnvPlugin
  from ray._private.utils import get_directory_size_bytes, try_to_create_directory
  from ray.exceptions import RuntimeEnvSetupError
label_desc: Use image node_id 5 for calling the JavaJarsPlugin obj's underlying member method code with example usage: obj.modify_context(uris, runtime_env_dict, context, logger) without return types