Apache Tika 编译错误

Question

我正在尝试遵循看起来非常简单的compilation instructions for Apache TikaJAXRS。我在 Windows 8.1 64bit 上运行。

1. 从 Apache Tika 下载页面下载最新的稳定源或从 Github 检索最新的代码，
2. 使用 Maven 构建源代码，
3. 运行 Apache Tika JAXRS 服务器。

好的。我已经完成了第 1 步，但在第 2 步上遇到了挫折。显然这里有一些未成文的先决条件，所以我尝试按如下方式解决它们：

• 已安装 Java SDK 8u25
• 将 JAVA_HOME 变量设置为 C:\Program Files\Java\jdk1.8.0_25
• 将 CLASSPATH 变量设置为 .
• 将 JDK BIN 目录添加到 PATH 变量：C:\Program Files\Java\jdk1.8.0_25\bin
• 将 Maven BIN 目录添加到 PATH 变量：C:\apache-maven-3.2.5\bin

然后从 tika-1.7 目录（用于 src 下载的 zip 内容）运行mvn install。编译愉快地进行了几分钟，然后吐出下面粘贴的错误输出，此时编译似乎冻结了。

问题看起来可能是这个问题 - https://issues.apache.org/jira/browse/TIKA-1276 那里有一些关于重新创建捆绑包和修改其中的文件以解决问题的讨论，但坦率地说，我觉得很奇怪我不得不跳过这样的圈子才能获得 Tika 的工作副本 - 没有二进制分发提供！

我需要做什么才能解决这个编译问题？

-------------------------------------------------------
 T E S T S
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Running org.apache.tika.bundle.BundleIT
[main] INFO org.ops4j.pax.exam.spi.DefaultExamSystem - Pax Exam System (Version: 2.2.0) created.
Jan 19, 2015 11:48:40 AM org.ops4j.pax.url.mvn.internal.AetherBasedResolver resolve
INFO: Resolved (org.junit:com.springsource.org.junit:jar:4.4.0) as C:\Users\Jason\.m2\repository\org\junit\com.springsource.org.junit\4.4.0\com.springsource.org.junit-4.4.0.jar
ERROR: Bundle org.ops4j.pax.exam.rbc [1] Error starting link:classpath:META-INF/links/org.ops4j.pax.exam.rbc.link (org.osgi.framework.BundleException: Activator start error in bundle org.ops4j.pax.exam.rbc [1].)
java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    at org.ops4j.pax.exam.rbc.internal.Activator.<clinit>(Activator.java:47)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
    at java.lang.Class.newInstance(Class.java:438)
    at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4169)
    at org.apache.felix.framework.Felix.activateBundle(Felix.java:1972)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1895)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory not found by org.ops4j.pax.exam.rbc [1]
    at org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1460)
    at org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:72)
    at org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1843)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 12 more
ERROR: Bundle org.ops4j.pax.exam.extender.service [2] Error starting link:classpath:META-INF/links/org.ops4j.pax.extender.service.link (org.osgi.framework.BundleException: Unresolved constraint in bundle org.ops4j.pax.exam.extender.service [2]: Unable to resolve 2.0: missing requirement [2.0] osgi.wiring.package; (&(osgi.wiring.package=org.slf4j)(version>=1.6.0)(!(version>=2.0.0))) [caused by: Unable to resolve 4.0: missing requirement [4.0] osgi.wiring.package; (osgi.wiring.package=javax.xml.parsers)])
org.osgi.framework.BundleException: Unresolved constraint in bundle org.ops4j.pax.exam.extender.service [2]: Unable to resolve 2.0: missing requirement [2.0] osgi.wiring.package; (&(osgi.wiring.package=org.slf4j)(version>=1.6.0)(!(version>=2.0.0))) [caused by: Unable to resolve 4.0: missing requirement [4.0] osgi.wiring.package; (osgi.wiring.package=javax.xml.parsers)]
    at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3818)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
    at java.lang.Thread.run(Thread.java:745)
ERROR: Bundle org.ops4j.pax.logging.pax-logging-api [4] Error starting link:classpath:META-INF/links/org.ops4j.pax.logging.api.link (org.osgi.framework.BundleException: Unresolved constraint in bundle org.ops4j.pax.logging.pax-logging-api [4]: Unable to resolve 4.0: missing requirement [4.0] osgi.wiring.package; (osgi.wiring.package=javax.xml.parsers))
org.osgi.framework.BundleException: Unresolved constraint in bundle org.ops4j.pax.logging.pax-logging-api [4]: Unable to resolve 4.0: missing requirement [4.0] osgi.wiring.package; (osgi.wiring.package=javax.xml.parsers)
    at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3818)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
    at java.lang.Thread.run(Thread.java:745)
ERROR: Bundle org.apache.tika.core [6] Error starting file:/C:/Users/Jason/Desktop/FullText/Tika/tika-1.7/tika-bundle/target/test-bundles/tika-core.jar (org.osgi.framework.BundleException: Unresolved constraint in bundle org.apache.tika.core [6]: Unable to resolve 6.0: missing requirement [6.0] osgi.wiring.package; (osgi.wiring.package=javax.crypto))
org.osgi.framework.BundleException: Unresolved constraint in bundle org.apache.tika.core [6]: Unable to resolve 6.0: missing requirement [6.0] osgi.wiring.package; (osgi.wiring.package=javax.crypto)
    at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3818)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
    at java.lang.Thread.run(Thread.java:745)
ERROR: Bundle org.apache.tika.bundle [7] Error starting file:/C:/Users/Jason/Desktop/FullText/Tika/tika-1.7/tika-bundle/target/test-bundles/tika-bundle.jar (org.osgi.framework.BundleException: Unresolved constraint in bundle org.apache.tika.bundle [7]: Unable to resolve 7.0: missing requirement [7.0] osgi.wiring.package; (osgi.wiring.package=javax.crypto))
org.osgi.framework.BundleException: Unresolved constraint in bundle org.apache.tika.bundle [7]: Unable to resolve 7.0: missing requirement [7.0] osgi.wiring.package; (osgi.wiring.package=javax.crypto)
    at org.apache.felix.framework.Felix.resolveBundleRevision(Felix.java:3818)
    at org.apache.felix.framework.Felix.startBundle(Felix.java:1868)
    at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1191)
    at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:295)
    at java.lang.Thread.run(Thread.java:745)

Answer 1

提升对答案的评论...

我不确定为什么您的构建在该测试中失败，因为它通过了我和自动构建/测试系统。但是...您可能不想这样做！

如果您访问Apache Tika download page，您将看到一个下载最新稳定 Tika Server 可运行 jar 的链接。按照该链接，选择您最喜欢的镜像，下载，验证校验和并运行。简单！

如果您确实需要从源代码构建 Tika 服务器（例如，如果您要对其进行更改），您可以通过运行 mvn install -DskipTests 跳过单元测试，这将在没有测试的情况下进行构建，或者您可以在源代码签出的根目录中编辑pom.xml 并注释掉<module>tika-bundle</module> 行以从您的构建中排除整个捆绑部分（测试和所有）。如果您只想使用 Tika Server，则不需要 OSGi 捆绑包，因此可以安全地跳过它

Answer 2

当您尝试使用 JDK 8 构建 tika 时会发生此错误。有一个 pull request 来解决此问题。