apache/hadoop · error · RuntimeException

{} not found

Error message

{} not found

What it means

Error "{} not found" thrown in apache/hadoop.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java:3108

                                Resource wrapper, boolean quiet) {
    String name = UNKNOWN_RESOURCE;
    try {
      Object resource = wrapper.getResource();
      name = wrapper.getName();
      boolean returnCachedProperties = false;

      if (resource instanceof InputStream) {
        returnCachedProperties = true;
      } else if (resource instanceof Properties) {
        overlay(properties, (Properties)resource);
      }

      XMLStreamReader2 reader = getStreamReader(wrapper, quiet);
      if (reader == null) {
        if (quiet) {
          return null;
        }
        throw new RuntimeException(resource + " not found");
      }
      Properties toAddTo = properties;
      if(returnCachedProperties) {
        toAddTo = new Properties();
      }

      List<ParsedItem> items = new Parser(reader, wrapper, quiet).parse();
      for (ParsedItem item : items) {
        loadProperty(toAddTo, item.name, item.key, item.value,
            item.isFinal, item.sources);
      }
      reader.close();

      if (returnCachedProperties) {
        overlay(properties, toAddTo);
        return new Resource(toAddTo, name, wrapper.isParserRestricted());
      }
      return null;

View on GitHub (pinned to 2add963021)

Solutions

1. Ensure the named resource or class exists on the classpath.

Example fix

Correct the resource name or add it to the classpath.

When it happens

Trigger: Raised at runtime when the documented precondition or configuration requirement for this operation is violated.

Common situations: Misconfigured or missing property, invalid user input, or calling the API before its prerequisites are met.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/b95b58d82497e177. Report an issue: GitHub.