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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Bug: Set ToolCallBehavior.allowAllKernelFunctions(false) doesn't work for getStreamingChatMessageContentsAsync","articleBody":"**Describe the bug**\nI try to invoke toolcall myself in a streaming chat.\nI have learned that how to invoke a toolcall in an non-streaming chat. like \n``` java\n        Kernel kernel = Kernel.builder().withAIService(ChatCompletionService.class, chatCompletionService)\n                .withPlugin(KernelPluginFactory.createFromObject(this, \"time\"))\n                .build();\n\n        chatCompletionService\n                .getChatMessageContentsAsync(\"what time is it now?\", kernel, InvocationContext.builder()\n                        .withToolCallBehavior(ToolCallBehavior.allowAllKernelFunctions(false))\n                        .build())\n                .block()\n                .stream().filter(it-\u003eit instanceof OpenAIChatMessageContent\u003c?\u003e)\n                .map(it-\u003e((OpenAIChatMessageContent)it))\n                .forEach(it-\u003e{\n                    System.out.println(it.getToolCall().size());\n                });\n```\n![Image](https://github.com/user-attachments/assets/acf9b0d0-182a-4b6f-84d4-dd32406f1074)\n\nAs you can see, I can get the toolCall value;\n\n\nbut when I change to an streaming chat, like \n``` java\n        Kernel kernel = Kernel.builder().withAIService(ChatCompletionService.class, chatCompletionService)\n                .withPlugin(KernelPluginFactory.createFromObject(this, \"time\"))\n                .build();\n\n        chatCompletionService\n                .getStreamingChatMessageContentsAsync(\"what time is it now?\", kernel, InvocationContext.builder()\n                        .withToolCallBehavior(ToolCallBehavior.allowAllKernelFunctions(false))\n                        .build())\n                .filter(it-\u003eit instanceof OpenAIStreamingChatMessageContent\u003c?\u003e)\n                .map(it-\u003e(OpenAIStreamingChatMessageContent)it)\n                .doOnNext(it-\u003e{\n                    System.out.println(it.getToolCall().size());\n                }).subscribe();\n```\n![Image](https://github.com/user-attachments/assets/d4468935-8cc7-4356-9742-730cfb4b9c0c)\nthe toolCall will always be an empty array.\n","author":{"url":"https://github.com/thomaspeng90s","@type":"Person","name":"thomaspeng90s"},"datePublished":"2024-12-09T08:09:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/279/semantic-kernel-java/issues/279"}