apache/dolphinscheduler · error · IllegalArgumentException
Cannot find the resourceItem:
Error message
Cannot find the resourceItem:
What it means
ResourceContext.getResourceItem looks up a ResourceItem by its absolute storage path in the context's resourceItemMap and throws IllegalArgumentException when no item was registered under that key. The context is built from the resources resolved for a task execution; callers (command-line building, main-jar resolution, args building) assume every referenced resource was loaded, so a missing key indicates the resource was not resolved into the context.
Source
Thrown at dolphinscheduler-task-plugin/dolphinscheduler-task-api/src/main/java/org/apache/dolphinscheduler/plugin/task/api/resource/ResourceContext.java:51
/**
* ResourceAbsolutePathInStorage -> ResourceItem
*/
private final Map<String, ResourceItem> resourceItemMap;
public ResourceContext() {
this.resourceItemMap = new HashMap<>();
}
public void addResourceItem(ResourceItem resourceItem) {
checkNotNull(resourceItem);
resourceItemMap.put(resourceItem.getResourceAbsolutePathInStorage(), resourceItem);
}
public ResourceItem getResourceItem(String resourceAbsolutePathInStorage) {
ResourceItem resourceItem = resourceItemMap.get(resourceAbsolutePathInStorage);
if (resourceItem == null) {
throw new IllegalArgumentException("Cannot find the resourceItem: " + resourceAbsolutePathInStorage);
}
return resourceItem;
}
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public static class ResourceItem {
private String resourceAbsolutePathInStorage;
private String resourceAbsolutePathInLocal;
}
}
View on GitHub (pinned to 02eac45a1b)
Solutions
- Verify the resource still exists in the resource center and that the task's resource/mainJar paths point to it; re-upload if deleted.
- Check that the path passed to getResourceItem exactly matches ResourceItem.getResourceAbsolutePathInStorage() (compare prefixes, leading slashes, tenant directory) — log both keys and the requested path.
- Inspect why ResourceContext was built without the file: check storage plugin configuration and download logs for the worker; fix the storage credentials/bucket so resolution succeeds.
- If you construct ResourceContext yourself (tests, custom plugins), call addResourceItem for every path you later query, or use containsResourceItem/getResourceItemMap to check before calling.
- Catch IllegalArgumentException around getResourceItem callers (buildCommand, buildArgs, mainJarAbsolutePathInLocal) and fail the task with a clear 'resource missing' message.
Example fix
// before: assumes the item exists -> IllegalArgumentException
ResourceItem jar = context.getResourceItem(mainJarPath);
// after: guard with the public lookup before use
if (context.getResourceItemMap().containsKey(mainJarPath)) {
ResourceItem jar = context.getResourceItem(mainJarPath);
} else {
throw new TaskException("Resource missing from context: " + mainJarPath);
} Defensive patterns
Strategy: type-guard
Validate before calling
// check before calling getResourceItem
if (!resourceContext.getResourceItemMap().containsKey(storagePath)) {
throw new TaskException("Resource not loaded into context: " + storagePath);
} Type guard
boolean hasResource(ResourceContext ctx, String path) {
return path != null && ctx.getResourceItemMap().containsKey(path);
} Try / catch
try {
ResourceItem item = resourceContext.getResourceItem(path);
// use item
} catch (IllegalArgumentException e) {
throw new TaskException("Resource missing: " + path + " (check resource center and storage config)", e);
} Prevention
- Confirm every resource and mainJar referenced by the task still exists in the resource center
- Ensure the lookup path byte-for-byte matches getResourceAbsolutePathInStorage (watch tenant prefixes and slashes)
- Verify the storage plugin is configured and files download successfully before command building
- When constructing ResourceContext manually, register every item via addResourceItem before querying
- Catch IllegalArgumentException in buildCommand/buildArgs paths and fail with a resource-specific message
When it happens
Trigger: Calling getResourceItem with a path that is not a key of resourceItemMap — e.g. the task's mainJar or resource list references a file that was not downloaded/registered into the ResourceContext, the path differs in prefix (tenant directory, leading slash, relative vs absolute) from what was stored, or the resource was deleted from storage after the workflow was defined.
Common situations: A user deleted or renamed a resource in the resource center while a task definition still references it; running a task locally/with a fake storage plugin where files were never fetched; path mismatch between the configured resource path and the key used when building the context (older versions stored relative paths, newer ones absolute storage paths); permission failures during resource download that silently skipped registration.
Understand the failure class
Background: 'Could not be found', 'does not exist', 'not found in database': the resource-not-found family when an ID, slug, key, or URI lookup comes back empty — this error's family across 20 libraries.
Related errors
- K8S_NAMESPACE_NOT_EXIST
- Update the resource file from content: {fileAbsolutePath} fa
- Download the resource file: {fileAbsolutePath} failed
- SCHEDULE_CRON_NOT_EXISTS
- 10203
AI-assisted analysis of apache/dolphinscheduler@02eac45a1b (2026-09-06).
Data as JSON: /api/errors/a2598faa4d10ea3c.
Report an issue: GitHub.