[英]Setting the generated source directory for annotation processors in Maven
I'm trying to move a build which generates sources using an annotation processor to Maven.我正在尝试将使用注释处理器生成源的构建移动到 Maven。 I've tried configuring the maven-compiler-plugin as follows:我试过如下配置 maven-compiler-plugin:
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<fork>true</fork>
<compilerArgument>-s ${project.build.directory}/target/generated-sources/annotation-processing</compilerArgument>
</configuration>
</plugin>
</plugins>
But javac fails with但是 javac 失败了
[INFO] Compilation failure
Failure executing javac, but could not parse the error:
javac: invalid flag: -s /home/robert/workspaces/betbrain/sportsengine.common/sportsengine.bean.test/target/target/generated-sources/annotation-processing
Usage: javac <options> <source files>
use -help for a list of possible options
As far as I can tell, -s should be passed before the source files to javac, but maven passes it after.据我所知, -s 应该在源文件之前传递给 javac,但是 maven 在之后传递它。
How can I pass the -s
flag properly to the maven-compiler-plugin?如何将-s
标志正确传递给 maven-compiler-plugin?
Update : the maven-annotation-plugin does not seem to work.更新: maven-annotation-plugin似乎不起作用。
When configured as当配置为
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<outputDirectory>${generated.sources.directory}</outputDirectory>
<processors>
<processor>xxx.annotation.EnforceJavaBeansConventionsProcessor</processor>
</processors>
</configuration>
</execution>
</executions>
</plugin>
Execution fails with执行失败
[INFO] [processor:process {execution: process}]
error: Annotation processor 'xxx.annotation.EnforceJavaBeansConventionsProcessor' not found
1 error
The plugin was using the harcoded Windows classpath separator to build the classpath, so it was failing on my Linux machine.该插件使用硬编码的 Windows 类路径分隔符来构建类路径,所以它在我的 Linux 机器上失败了。
Submitted patches:提交的补丁:
Not exactly an answer to your question, but of interest:不完全是您问题的答案,但很有趣:
https://issues.apache.org/jira/browse/MCOMPILER-75 https://issues.apache.org/jira/browse/MCOMPILER-75
I'm afraid there are a number of issues using JSR 269 in Maven, at least with the default compiler plugin.恐怕在 Maven 中使用 JSR 269 有很多问题,至少在默认编译器插件中是这样。
I may be missing something but shouldn't you:我可能会遗漏一些东西,但你不应该:
Generate sources in target/generated-sources/annotation-processing
during the generate-sources
phase?在生成源阶段在target/generated-sources/annotation-processing
中generate-sources
? The apt-maven-plugin or the maven-annotation-plugin could help. apt-maven-plugin或maven-annotation-plugin可以提供帮助。
Include generated sources when compiling sources into target/classes
using <includes>
in the maven-compiler-plugin or the maven-build-helper-plugin ?在maven-compiler-plugin或maven-build-helper-plugin 中使用<includes>
将源编译为target/classes
时包含生成的源?
EDIT: Where is xxx.annotation.EnforceJavaBeansConventionsProcessor
located?编辑: xxx.annotation.EnforceJavaBeansConventionsProcessor
在哪里? Don't you need to add dependencies
to the configuration of the maven-annotation-plugin as documented on the Usage page?您不需要在使用页面上记录的 maven-annotation-plugin 的配置中添加dependencies
吗?
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<executions>
<execution>
<id>process</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-sources</phase>
<configuration>
<outputDirectory>src/main/generated</outputDirectory><!-- PROCESSOR OUT DIR -->
<processors><!-- LIST OF PROCESSOR CLASS(S) -->
<processor>org.bsc.apt.BeanInfoAnnotationProcessor</processor>
</processors>
</configuration>
</execution>
</executions>
<dependencies/><!-- ADD DEPENDENCIES HERE IF REQUIRED -->
</plugin>
PS: I wouldn't use src/main/generated
as output directory but rather a subdirectory of target/generated-sources
. PS:我不会使用src/main/generated
作为输出目录,而是使用target/generated-sources
的子目录。
I had this issue with GWTP Source Generate APT Processing annotations我在 GWTP Source Generate APT Processing annotations 遇到了这个问题
It was because I didn't set a version for the compiler plugin, my final setup:那是因为我没有为编译器插件设置版本,我的最终设置:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<!-- <compilerArgument>-proc:none</compilerArgument> -->
<generatedSourcesDirectory>${generated.sources}</generatedSourcesDirectory>
<annotationProcessors>
<annotationProcessor>com.gwtplatform.dispatch.annotation.processor.GenEventProcessor</annotationProcessor>
<annotationProcessor>com.gwtplatform.dispatch.annotation.processor.GenDtoProcessor</annotationProcessor>
<annotationProcessor>com.gwtplatform.dispatch.annotation.processor.GenDispatchProcessor</annotationProcessor>
</annotationProcessors>
</configuration>
</plugin>
One reason for this could be that $JAVA_HOME is pointing to jdk 1.5 version instead of 1.6.原因之一可能是 $JAVA_HOME 指向 jdk 1.5 版本而不是 1.6。 (on windows check %JAVA_HOME% of course) (当然在 Windows 上检查 %JAVA_HOME%)
I got the same problem ...我遇到了同样的问题...
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] Failure executing javac, but could not parse the error:
javac: invalid flag: -s
...
Are you using java 5 ?你在使用 java 5吗?
$ mvn -version
Apache Maven 2.2.1 (rdebian-8)
Java version: 1.5.0_22
Java home: /usr/lib/jvm/java-1.5.0-sun-1.5.0.22/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "3.2.0-24-generic" arch: "amd64" Family: "unix"
$ which java
/usr/bin/java
$ ll /usr/bin/java
/usr/bin/java -> /etc/alternatives/java*
$ ll /etc/alternatives/java
/etc/alternatives/java -> /usr/lib/jvm/java-1.5.0-sun/jre/bin/java*
$ sudo update-alternatives --config java
$ mvn -version
Apache Maven 2.2.1 (rdebian-8)
Java version: 1.6.0_24
Java home: /usr/lib/jvm/java-6-openjdk-amd64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux" version: "3.2.0-24-generic" arch: "amd64" Family: "unix"
now, mvn install should work :-)现在, mvn install应该可以工作了:-)
I've been using the maven-processor-plugin
as follows:我一直在使用maven-processor-plugin
如下:
<plugin>
<groupId>org.bsc.maven</groupId>
<artifactId>maven-processor-plugin</artifactId>
<version>2.2.4</version>
<executions>
<execution>
<id>process-my-annotations</id>
<goals>
<goal>process</goal>
</goals>
<phase>generate-test-sources</phase>
<configuration>
<processors>
<processor>x.y.z.MyAnnotationProcessor</processor>
</processors>
<outputDirectory>${project.build.directory}/generated-test-sources/test-annotations</outputDirectory>
<outputClassDirectory>${project.build.directory}/test-classes</outputClassDirectory>
</configuration>
</execution>
</executions>
</plugin>
The generated code goes into target/generated-test-sources/test-annotations , and generated resources into target/test-classes (the default for the process goal is target/generated-sources and target/classes , respectively).生成的代码进入target/generated-test-sources/test-annotations ,生成的资源进入target/test-classes (流程目标的默认值分别是target/generated-sources和target/classes )。
I also need to use maven-build-helper-plugin
to add target/generated-test-sources/test-annotations to the test source path so that test-compile phase will compile the generated code.我还需要使用maven-build-helper-plugin
将target/generated-test-sources/test-annotations 添加到测试源路径,以便test-compile阶段将编译生成的代码。
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