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feat: make AgentExecutor a functional interface with default cancel m… #1028

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feat: make AgentExecutor a functional interface with default cancel m… #1028

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feat: make AgentExecutor a functional interface with default cancel m…
malladinagarjuna2 Aug 9, 2026
f6f49da
Merge branch 'main' into feat-agentexecutor-lambda
malladinagarjuna2 Aug 9, 2026
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5 changes: 4 additions & 1 deletion server-common/src/main/java/org/a2aproject/sdk/server/agentexecution/AgentExecutor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,7 @@
* @see org.a2aproject.sdk.server.requesthandlers.DefaultRequestHandler
* @see org.a2aproject.sdk.spec.AgentCard
*/
@FunctionalInterface
public interface AgentExecutor {
/**
* Executes the agent's business logic for a message.
Expand Down Expand Up @@ -147,5 +148,7 @@ public interface AgentExecutor {
* @throws org.a2aproject.sdk.spec.TaskNotCancelableError if this agent does not support cancellation
* @throws A2AError if cancellation is supported but failed to execute
*/
void cancel(RequestContext context, AgentEmitter emitter) throws A2AError;
default void cancel(RequestContext context, AgentEmitter emitter) throws A2AError {
throw new org.a2aproject.sdk.spec.TaskNotCancelableError("Agent execution is not cancelable.");

@kabir kabir Aug 11, 2026

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Please use an import rather than a FQN

}
}
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