XJC(XML Java编译器)是JAXB(Java XML绑定)的一部分。
如果我看官方网站,JAXB的最新版本似乎是2.2.11。这就是您仅安装最新的JDK版本8u40所得到的。
以下输出显示了与JDK 8u40相关的XJC版本:
../JDK8u40/bin$ ./javac -version
javac 1.8.0_40
../JDK8u40/bin$ ./xjc -version
xjc 2.2.8-b130911.1802
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(原始的JDK路径因操作系统而异,因此这只是一个示例。)
似乎XJC的版本不同于“最新的” JAXB版本,或者最新的JDK不包含最新的JAXB版本。
我的解决方法是仅从Maven存储库安装最新的JAXB版本。听起来很简单,但是为什么最新的JAXB版本是2.2.12?忘记将文档放在官方网站上了吗?好的,我只是不介意...在成功安装过程之后,我注意到此软件包中没有XJC。所以继续搜索...我找到了另一个名为“ JAXB-XJC ”的Maven存储库。但这只是源代码。我只想安装XJC的最新二进制文件。我查看了版本号2.2.11。看起来至少比2.2.8好。
但是,在哪里可以获得XJC的最新二进制文件?
为什么我要安装最新的XJC二进制文件?因为我想知道它是否支持Java 8的Optionals和/或它是否支持XSD架构版本1.1。在Internet上的某个地方,我阅读了最新的XJC,至少支持XSD架构版本1.1。现在就足够了。但是要弄清楚这一点,Oracle似乎必须解决其可怕的版本混乱情况。
更新资料
我试图通过克隆官方Git存储库并进行构建来构建JAXB mvn clean install。
结果:
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] JAXB BOM ........................................... SUCCESS [ 0.140 s]
[INFO] JAXB BOM with ALL dependencies ..................... SUCCESS [ 0.005 s]
[INFO] JAXB Reference Implementation ...................... SUCCESS [ 0.515 s]
[INFO] JAXB External parent ............................... SUCCESS [ 0.009 s]
[INFO] RNGOM .............................................. SUCCESS [ 3.723 s]
[INFO] Codemodel .......................................... SUCCESS [ 0.008 s]
[INFO] Codemodel Core ..................................... SUCCESS [ 2.622 s]
[INFO] Codemodel Annotation Compiler ...................... SUCCESS [ 0.848 s]
[INFO] JAXB TXW parent .................................... SUCCESS [ 0.006 s]
[INFO] TXW2 Runtime ....................................... SUCCESS [ 1.920 s]
[INFO] TXW2 Compiler ...................................... SUCCESS [ 1.507 s]
[INFO] JAXB Core .......................................... SUCCESS [ 1.745 s]
[INFO] JAXB Runtime parent ................................ SUCCESS [ 0.008 s]
[INFO] JAXB Runtime ....................................... SUCCESS [ 5.932 s]
[INFO] JAXB1 Runtime ...................................... SUCCESS [ 1.520 s]
[INFO] JAXB XJC ........................................... SUCCESS [ 5.555 s]
[INFO] JAXB JXC ........................................... SUCCESS [ 2.928 s]
[INFO] Parent for osgi testing modules. ................... SUCCESS [ 0.009 s]
[INFO] osgi-test-parent ................................... SUCCESS [ 1.315 s]
[INFO] osgi-test-core ..................................... SUCCESS [ 0.676 s]
[INFO] JAXB bundles ....................................... SUCCESS [ 0.007 s]
[INFO] Old JAXB Core ...................................... SUCCESS [ 4.669 s]
[INFO] osgi-test-runtime .................................. SUCCESS [ 0.677 s]
[INFO] Old JAXB Runtime ................................... SUCCESS [ 3.251 s]
[INFO] osgi-test-xjc ...................................... SUCCESS [ 0.637 s]
[INFO] Old JAXB XJC ....................................... SUCCESS [ 4.385 s]
[INFO] osgi-test-jxc ...................................... SUCCESS [ 0.607 s]
[INFO] Old JAXB JXC ....................................... SUCCESS [ 2.169 s]
[INFO] JAXB Documentation parent .......................... SUCCESS [ 0.005 s]
[INFO] JAXB Release Documentation ......................... SUCCESS [ 12.401 s]
[INFO] JAXB samples ....................................... SUCCESS [ 0.375 s]
[INFO] JAXB RI ............................................ SUCCESS [ 1.079 s]
[INFO] JAXB OSGI parent ................................... SUCCESS [ 0.005 s]
[INFO] JAXB extra OSGI .................................... FAILURE [ 6.668 s]
[INFO] JAXB OSGI .......................................... SKIPPED
[INFO] osgi-test-osgi ..................................... SKIPPED
[INFO] osgi-test-extra_osgi ............................... SKIPPED
[INFO] JAXB OSGi Tests .................................... SKIPPED
[INFO] JAXB WWW Help files ................................ SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:08 min
[INFO] Finished at: 2015-03-11T15:40:59+01:00
[INFO] Final Memory: 83M/1546M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:2.0:shade (default) on project jaxb-extra-osgi: Error creating shaded jar: java.util.jar.Attributes cannot be cast to java.lang.String -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :jaxb-extra-osgi
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在JAXB Extra OSGI目标上,构建过程总是失败。该JAXB XJC目标成功生成,但只包含一个例外扔jar文件,但没有命名的二进制XJC。那在哪呢
我已经修复了 JAXB maven 构建中的 OSGi 故障。所以现在应该没问题了。
此外,为了快速构建,您可以尝试使用:
$ mvn clean install -Ddev
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这将运行快速构建,而无需创建文档/osgi-tests。
您还可以jaxb-ri.zip在$JAXB_HOME/bundles/ri/target/. 或者,如果您不想每次在构建后都将其解压缩,请直接转到:$JAXB_HOME/bundles/ri/target/stage/jaxb-ri/。
PS:如果您使用独立的 JAXB,请不要忘记对jaxb-api.jar 使用JAVA 认可的机制。
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