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[BUGS] Prevent NullPointerException for Gemini models with empty AIMessage content #79

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[BUGS] Prevent NullPointerException for Gemini models with empty AIMessage content #79

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7 changes: 6 additions & 1 deletion libs/oci/langchain_oci/chat_models/oci_generative_ai.py
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Original file line number Diff line number Diff line change
Expand Up @@ -815,7 +815,12 @@ def messages_to_oci_params(
message.tool_calls or message.additional_kwargs.get("tool_calls")
):
# Process content and tool calls for assistant messages
content = self._process_message_content(message.content)
if message.content:
content = self._process_message_content(message.content)
# Issue 78 fix: Check if original content is empty BEFORE processing
# to prevent NullPointerException in OCI backend
else:
content = [self.oci_chat_message_text_content(text=".")]
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@YouNeedCryDear YouNeedCryDear Dec 11, 2025

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so there has to be an arbitrary character in the the text?

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@paxiaatucsdedu paxiaatucsdedu Dec 15, 2025

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Yes, I tried to use an empty space as the content, but empty space does not work.

tool_calls = []
for tool_call in message.tool_calls:
tool_calls.append(
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