Github user ahgittin commented on a diff in the pull request:
https://github.com/apache/brooklyn-server/pull/480#discussion_r103499754
--- Diff:
core/src/main/java/org/apache/brooklyn/util/core/task/BasicExecutionContext.java
---
@@ -96,7 +98,50 @@ public ExecutionManager getExecutionManager() {
/** returns tasks started by this context (or tasks which have all the
tags on this object) */
@Override
public Set<Task<?>> getTasks() { return
executionManager.getTasksWithAllTags(tags); }
-
+
+ /** performs execution without spawning a new task thread, though it
does temporarily set a fake task for the purpose of getting context;
+ * currently supports suppliers or callables */
+ @SuppressWarnings("unchecked")
+ @Override
+ public <T> Maybe<T> getImmediately(Object callableOrSupplier) {
+ BasicTask<?> fakeTaskForContext;
+ if (callableOrSupplier instanceof BasicTask) {
+ fakeTaskForContext = (BasicTask<?>)callableOrSupplier;
--- End diff --
As for the particular code block marked here, it is invoked from
`ValueResolver` when you supply a `TaskFactory`; `VR` generates the `Task` and
passes it in with `allowImmediateExecution=true`
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