获取Apache HttpComponents HttpClient 4.3.x OSGI包的问题，用于在Apache Karaf 2.3.x上工作

Question

在尝试安装 httpclient-osgi 4.3.2包（org.apache.httpcomponents：httpclient-osgi：bundle：4.3.2，如 hc站点”在 apache karaf osgi容器中，我收到以下错误报告：

karaf@root> install mvn:org.apache.httpcomponents/httpclient-osgi/4.3.2
Bundle ID: 60
karaf@root> start 60
Error executing command: Error starting bundles:
    Unable to start bundle 60: Unresolved constraint in bundle 
    org.apache.httpcomponents.httpclient [60]: Unable to resolve 60.0: 
    missing requirement [60.0] osgi.wiring.package; 
    (&(osgi.wiring.package=org.apache.http.concurrent)(version>=4.3.0)
    (!(version>=4.4.0)))

.

在检查标题时，似乎它尝试加载的依赖项被标记为私有包并且可以在捆绑jar中找到类：

karaf@root> headers 60

.

=>

...
Private-Package = 
org.apache.commons.codec,
    org.apache.commons.codec.binary,
    org.apache.commons.codec.digest,
    org.apache.commons.codec.language,
    org.apache.commons.codec.language.bm,
    org.apache.commons.codec.net,
    org.apache.http,
    org.apache.http.annotation,
    org.apache.http.concurrent,
    org.apache.http.config,
    org.apache.http.entity,
    org.apache.http.impl,
    org.apache.http.impl.entity,
    org.apache.http.impl.io,
    org.apache.http.impl.pool,
    org.apache.http.io,
    org.apache.http.message,
    org.apache.http.osgi.impl,
    org.apache.http.params,
    org.apache.http.pool,
    org.apache.http.protocol,
    org.apache.http.util

.

同时，org.apache.http *也被定义为 import-package 包：

...
Import-Package = 
    javax.crypto,
    javax.crypto.spec,
    javax.net,
    javax.net.ssl,
    javax.security.auth.x500,
    org.ietf.jgss,
    org.osgi.framework;version="[1.5,2)",
    org.osgi.service.cm;version="[1.3,2)",
    org.apache.commons.logging;version="[1.1.0,1.2.0)",
    net.sf.ehcache;resolution:=optional,
    net.spy.memcached;resolution:=optional,
    org.apache.http.concurrent;version="[4.3.0,4.4.0)",
    org.apache.http.message;version="[4.3.0,4.4.0)",
    org.apache.http.impl.entity;version="[4.3.0,4.4.0)",
    org.apache.http.entity;version="[4.3.0,4.4.0)",
    org.apache.http.protocol;version="[4.3.0,4.4.0)",
    org.apache.http.impl.pool;version="[4.3.0,4.4.0)",
    org.apache.http;version="[4.3.0,4.4.0)",
    org.apache.http.params;version="[4.3.0,4.4.0)",
    org.apache.http.util;version="[4.3.0,4.4.0)",
    org.apache.http.io;version="[4.3.0,4.4.0)",
    org.apache.http.impl.io;version="[4.3.0,4.4.0)",
    org.apache.http.config;version="[4.3.0,4.4.0)",
    org.apache.http.pool;version="[4.3.0,4.4.0)",
    org.apache.http.impl;version="[4.3.0,4.4.0)"

.

似乎导致卡拉夫试图找到包的导出并无法激活捆绑包。

这个捆绑清单有问题吗？或者我错过了什么？

ps：我尝试旧的4.3.x和karaf 2.3.x版本 - 相同的结果。

Answer 1

您需要httpcore osgi捆绑包和捆绑导出Commons Logging API，以满足HttpClient OSGI捆绑的必要依赖项。