Package com.tnsai.exceptions

Class ToolCallNotSupportedException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

com.tnsai.exceptions.TnsAIException

com.tnsai.exceptions.LLMException

com.tnsai.exceptions.LLMCapabilityException

com.tnsai.exceptions.ToolCallNotSupportedException

All Implemented Interfaces:

Serializable

public class ToolCallNotSupportedException
extends LLMCapabilityException

Exception thrown when tools are sent to an LLM model that does not support function/tool calling.

This is a specific subtype of LLMCapabilityException for the most common capability mismatch: attempting to use tool calling with a model that doesn't support it.

Common scenarios:

• Using older Ollama models (e.g., phi, orca) that lack function calling
• Using text-only models that don't support structured tool interactions
• Unknown models where capabilities default to no tool support

The exception message includes the model name, provider, and a suggestion for compatible models.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.tnsai.exceptions.LLMException

LLMException.ErrorType

Constructor Summary

Constructors

Constructor	Description
ToolCallNotSupportedException(String model, String provider)	Creates a ToolCallNotSupportedException.
ToolCallNotSupportedException(String model, String provider, Throwable cause)	Creates a ToolCallNotSupportedException with a cause.

Method Summary

Modifier and Type	Method	Description
String	getSuggestion()	Returns the suggestion text for compatible models.

Methods inherited from class com.tnsai.exceptions.LLMCapabilityException

getCapability, getProvider, streamingNotSupported, structuredOutputNotSupported, visionNotSupported

Methods inherited from class com.tnsai.exceptions.LLMException

authenticationFailed, contentFiltered, contextTooLong, getErrorType, getModel, getProviderDetails, getSuggestedRetryDelayMs, malformedToolCall, malformedToolCall, modelNotFound, modelOverloaded, serverError

Methods inherited from class com.tnsai.exceptions.TnsAIException

getContext, getErrorCode, getMaxRetryAttempts, getMessage, getThrownAt, isRetryable, wrap

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ToolCallNotSupportedException

public ToolCallNotSupportedException(String model,
 String provider)

Creates a ToolCallNotSupportedException.

Parameters:

model - the model identifier

provider - the provider name

ToolCallNotSupportedException

public ToolCallNotSupportedException(String model,
 String provider,
 Throwable cause)

Creates a ToolCallNotSupportedException with a cause.

Parameters:

model - the model identifier

provider - the provider name

cause - the underlying cause

Method Details

getSuggestion

public String getSuggestion()

Returns the suggestion text for compatible models.