[Bug]: no error, no output #764
Description
code like this:
Toolkit toolkit = new Toolkit();
SkillBox skillBox = new SkillBox(toolkit);
AgentSkill dataSkill = AgentSkill.builder()
.name("data_analysis")
.description("Comprehensive data analysis capabilities")
.skillContent("# Data Analysis\n " +
"You can generate, load, preprocess, and analyze data using the available tools.\n" +
"\n" +
"## Available Tools\n" +
"1. generateData: Generate synthetic data based on specified parameters.\n" +
"2. loadData: Load and preprocess data for analysis.\n" +
"3. analyzeData: Perform statistical analysis and visualization on the data.\n")
.build();
AgentTool loadDataTool = new AgentTool() {
@Override
public String getName() {
return "loadData";
}
@Override
public String getDescription() {
return "Load and preprocess data for analysis";
}
@Override
public Map<String, Object> getParameters() {
return Map.of(
"dataSource", "The source of the data to be loaded",
"preprocessingSteps", "Steps to preprocess the data"
);
}
@Override
public Mono<ToolResultBlock> callAsync(ToolCallParam param) {
log.info("Executing loadDataTool with param: {}", param);
return Mono.just(ToolResultBlock.builder()
.output(TextBlock.builder().text("Data loaded and preprocessed successfully").build())
.build());
}
};
skillBox.registration()
.skill(dataSkill)
.tool(loadDataTool)
.apply();
ReActAgent agent = ReActAgent.builder()
.name("Assistant")
.sysPrompt("你是一个有帮助的 AI 助手。")
.model(OpenAIChatModel.builder()
.apiKey("xxxx")
.baseUrl("https://xxx")
.stream(true)
.modelName("DeepSeek-V3.2")
.build())
.toolkit(toolkit)
.skillBox(skillBox)
.build();
Msg response = agent.call(Msg.builder()
.textContent("帮我生成一批数据，并进行分析")
.build()).block();
log.info(response.getTextContent());
output:
2026-02-09 17:53:48.664 [main] INFO io.agentscope.core.skill.SkillBox - Registered skill 'data_analysis_custom'
2026-02-09 17:53:48.667 [main] INFO i.a.core.tool.ToolGroupManager - Created tool group 'data_analysis_custom_skill_tools': data_analysis_custom_skill_tools
2026-02-09 17:53:48.667 [main] INFO io.agentscope.core.tool.Toolkit - Registered tool 'loadData' in group 'data_analysis_custom_skill_tools'
2026-02-09 17:53:48.913 [main] INFO i.a.core.tool.ToolGroupManager - Created tool group 'skill-build-in-tools': skill build-in tools, could contain(load_skill_through_path)
2026-02-09 17:53:48.914 [main] INFO io.agentscope.core.tool.Toolkit - Registered tool 'load_skill_through_path' in group 'skill-build-in-tools'
2026-02-09 17:53:48.914 [main] INFO io.agentscope.core.skill.SkillBox - Registered skill load tools to toolkit
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "io.agentscope.core.message.Msg.getTextContent()" because "response" is null
at cn.pomit.agent.TestAgent.main(TestAgent.java:85)
2026-02-09 17:53:49.866 [HttpTransportFactory-ShutdownHook] INFO i.a.c.m.t.HttpTransportFactory - Shutting down 1 managed HttpTransport(s)
and pom is:
<dependency>
<groupId>io.agentscope</groupId>
<artifactId>agentscope</artifactId>
<version>1.0.8</version>
</dependency>
just the demo, just no error, no output. and It is ok when no skillbox.