使用Apache CXF如何传递包含空值的列表

问题描述

我正在使用microprofile-rest-client 1.4.1 / apache cxf 3.3.7进行服务器/客户端通信。

将列表传递给包含null的服务会引发以下错误：

客户代码：

List<String> list = new ArrayList<>();
list.add("one");
list.add(null); // CAUSE OF ERROR
list.add("two");
service.testList(list);

服务界面

@GET
@Path("/testList")
void testList(@QueryParam("list") List<String> list);

错误：

java.lang.IllegalArgumentException: Null value on 0 position
    at org.apache.cxf.jaxrs.impl.UriBuilderImpl.toStringList(UriBuilderImpl.java:839)
    at org.apache.cxf.jaxrs.impl.UriBuilderImpl.queryParam(UriBuilderImpl.java:733)
    at org.apache.cxf.jaxrs.client.AbstractClient.addMatrixOrQueryToBuilder(AbstractClient.java:793)
    at org.apache.cxf.jaxrs.client.AbstractClient.convertMatrixOrQueryToBuilder(AbstractClient.java:783)
    at org.apache.cxf.jaxrs.client.AbstractClient.addMatrixQueryParamsToBuilder(AbstractClient.java:757)
    at org.apache.cxf.jaxrs.client.ClientProxyImpl.lambda$handleQueries$7(ClientProxyImpl.java:612)
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183)
    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177)
    at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484)
    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474)
    at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150)
    at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173)
    at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    at java.base/java.util.stream.ReferencePipeline.forEachOrdered(ReferencePipeline.java:502)
    at org.apache.cxf.jaxrs.client.ClientProxyImpl.handleQueries(ClientProxyImpl.java:611)
    at org.apache.cxf.jaxrs.client.ClientProxyImpl.invoke(ClientProxyImpl.java:296)
    at org.apache.cxf.microprofile.client.proxy.MicroProfileClientProxyImpl.invokeActual(MicroProfileClientProxyImpl.java:476)
    at org.apache.cxf.microprofile.client.proxy.MicroProfileClientProxyImpl.access$000(MicroProfileClientProxyImpl.java:75)
    at org.apache.cxf.microprofile.client.proxy.MicroProfileClientProxyImpl$Invoker.call(MicroProfileClientProxyImpl.java:495)
    at org.apache.cxf.microprofile.client.cdi.CDIInterceptorWrapper$BasicCDIInterceptorWrapper.invoke(CDIInterceptorWrapper.java:43)
    at org.apache.cxf.microprofile.client.proxy.MicroProfileClientProxyImpl.invoke(MicroProfileClientProxyImpl.java:472)
    at com.sun.proxy.$Proxy15.testList(Unknown Source)

这似乎是一个普通的用例，我缺少什么吗？

解决方法

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