stream表达式相关的问题，具体没找到问题点

[suyujie]

List rlist = boList.stream().map(bo->bo.getId()).distinct().collect(toList()); List rlist = boList.stream().map(XBean::getId).distinct().collect(toList());

测试中，第二行代码报错了。第一行正常 第二行报错信息 区别就是 一个用 箭头方式，一个用::方式。 其中对象里面的 Id 是 lombok的@Data注解生成的get set

java.lang.IncompatibleClassChangeError: Expected static method com.jd.ipc.model.dto.VirtualCateDto.getDeptId3()Ljava/lang/Integer;

[iceqing]

遇到同样的问题 版本是：0.7.1

Caused by: java.lang.IncompatibleClassChangeError: Expected static method xxx.malldb.MallItemPropertyName.getName()Ljava/lang/String;
    at xxx.service.impl.MallItemPropertyServiceImpl.Lambda$_getName_6(MallItemPropertyServiceImpl.java)
    at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320)
    at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169)
    at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)

[zcbbpo]

是像这种的吗？

public static class XBean {
        private Long id;

       public Long getId() {
           return id;
       }

       public void setId(Long id) {
           this.id = id;
       }
   }

    public void foo() {
        List<XBean> testList = Collections.emptyList();
        //noinspection RedundantOperationOnEmptyContainer
        List<Long> response = testList.stream().map(XBean::getId).distinct().collect(Collectors.toList());
    }

[suyujie]

是的; 箭头好使，双冒号不行

把 XBean::getId 换成 o->o.getId() 就好使。

---原始邮件--- 发件人: @.> 发送时间: 2021年12月16日(周四) 晚上6:12 收件人: @.>; 抄送: @.**@.>; 主题: Re: [alibaba/testable-mock] stream表达式先关的问题，具体没找到问题点 (Issue #250)

是像这种的吗？ public static class XBean { private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } } public void foo() { List<XBean> testList = Collections.emptyList(); //noinspection RedundantOperationOnEmptyContainer List<Long> response = testList.stream().map(XBean::getId).distinct().collect(Collectors.toList()); }
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[suyujie]

已经修复了？时效杠杠的呀。。会发布小版本吗？