You are right. fork="true" in the Ant java task works too. But this was not necessary in the original Ant build script. Is there an explanation in the documentation of why antrun behaves differently?
-Chris bimargulies wrote: > > A simple fork=yes would have done the job. > > On Fri, Jul 3, 2009 at 12:01 PM, clconway<[email protected]> wrote: >> >> The problem seems to be that Rats! calls System.exit() (or similar), >> terminating the JVM. I would have thought that Ant would wrap this (the >> java >> task is copied over from a build.xml and it doesn't terminate the Ant >> build), but the following works by forcing the Rats! process into a >> separate >> JVM: >> >> <plugin> >> <groupId>org.codehaus.mojo</groupId> >> <artifactId>exec-maven-plugin</artifactId> >> <version>1.1</version> >> <executions> >> <execution> >> <phase>generate-sources</phase> >> <goals> >> <goal>exec</goal> >> </goals> >> </execution> >> </executions> >> <configuration> >> <executable>java</executable> >> <arguments> >> <argument>-classpath</argument> >> <argument>${basedir}/lib/xtc.jar</argument> >> <argument>xtc.parser.Rats</argument> >> <argument>-in</argument> >> <argument>${project.build.sourceDirectory}</argument> >> <argument>-out</argument> >> >> <argument>${project.build.directory}/generated-sources/main/java/</argument> >> <argument>${project.build.sourceDirectory}/Dot.rats</argument> >> </arguments> >> </configuration> >> </plugin> >> >> -Chris >> >> >> clconway wrote: >>> >>> Funny story. I tried replacing the Ant task with a Maven plugin, by >>> writing a RatsMojo class that invokes xtc.parser.Rats directly and >>> replacing the plugin element above with >>> >>> <plugin> >>> <groupId>edu.nyu.xtc</groupId> >>> <artifactId>maven-xtc-plugin</artifactId> >>> <executions> >>> <execution> >>> <phase>generate-sources</phase> >>> <goals> >>> <goal>rats</goal> >>> </goals> >>> <configuration> >>> >>> <inputDirectory>${project.build.sourceDirectory}</inputDirectory> >>> <outputDirectory> >>> ${project.build.directory}/generated-sources/main/java</outputDirectory> >>> >>> <grammarFile>${project.build.sourceDirectory}/Dot.rats</grammarFile> >>> </configuration> >>> </execution> >>> </executions> >>> </plugin> >>> >>> It does the exact same thing: it runs Rats! then terminates without >>> compiling *any* of the Java files in the project. >>> >>> RatsMojo.java is attached. >>> >>> -Chris >>> http://www.nabble.com/file/p24314823/RatsMojo.java RatsMojo.java >>> >>> >>> clconway wrote: >>>> >>>> My project generates source code using the XTC parser generator >>>> (http://cs.nyu.edu/rgrimm/xtc/). XTC doesn't have a Maven plugin that >>>> I'm aware of, so I'm trying to build the parser using an Ant Java >>>> task, like so: >>>> >>>> <plugin> >>>> <artifactId>maven-antrun-plugin</artifactId> >>>> <executions> >>>> <execution> >>>> <phase>generate-sources</phase> >>>> <configuration> >>>> <tasks> >>>> <mkdir >>>> dir="${project.build.directory}/generated-sources/main/java/" /> >>>> <java classpath="lib/xtc.jar" >>>> classname="xtc.parser.Rats"> >>>> <arg line="-in ${project.build.sourceDirectory}" /> >>>> <arg line="-out >>>> ${project.build.directory}/generated-sources/main/java/" /> >>>> <arg path="${project.build.sourceDirectory}/Dot.rats" >>>> /> >>>> </java> >>>> </tasks> >>>> <sourceRoot> >>>> ${project.build.directory}/generated-sources/main/java >>>> </sourceRoot> >>>> </configuration> >>>> <goals> >>>> <goal>run</goal> >>>> </goals> >>>> </execution> >>>> </executions> >>>> </plugin> >>>> >>>> The details of what XTC does aren't important: the end result is that >>>> the above generates Dot.java and places it in >>>> target/generated-sources/main/java. It works fine. >>>> >>>> The problem is that, with this plugin element in my pom.xml, none of >>>> the Java files in the project get compiled. In a project generated >>>> using "mvn archetype:create -DgroupId=foo -DartifactId=bar", if I run >>>> "mvn compile" without the plugin element, I get: >>>> >>>> $ mvn compile >>>> [INFO] Scanning for projects... >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] Building bar >>>> [INFO] task-segment: [compile] >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] [resources:resources] >>>> [INFO] Using default encoding to copy filtered resources. >>>> [INFO] [compiler:compile] >>>> [INFO] Compiling 1 source file to >>>> /home/chris/src/tests/maven/project1/bar/target/classes >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] BUILD SUCCESSFUL >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] Total time: 1 second >>>> [INFO] Finished at: Wed Jul 01 18:57:08 EDT 2009 >>>> [INFO] Final Memory: 6M/67M >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> >>>> Whereas with the plugin element invoking XTC, I get (after a "mvn >>>> clean"): >>>> >>>> $ mvn compile >>>> [INFO] Scanning for projects... >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] Building bar >>>> [INFO] task-segment: [compile] >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] [antrun:run {execution: default}] >>>> [INFO] Executing tasks >>>> [mkdir] Created dir: >>>> /home/chris/src/tests/maven/project1/bar/target/generated-sources/main/java >>>> Rats! Parser Generator, v. 1.14.2, (C) 2004-2008 Robert Grimm >>>> Processing >>>> /home/chris/src/tests/maven/project1/bar/src/main/java/Dot.rats ... >>>> >>>> The XTC process is not failing, AFAICT. >>>> >>>> I've tried other kinds of Ant tasks and they don't interfere with Java >>>> compilation. For example, if I replace the task element above with an >>>> echo task >>>> >>>> <tasks> >>>> <mkdir >>>> dir="${project.build.directory}/generated-sources/main/java/" /> >>>> <echo >>>> file="${project.build.directory}/generated-sources/main/java/Dot.java"> >>>> public class Dot { } >>>> </echo> >>>> </tasks> >>>> >>>> I get >>>> >>>> $ mvn compile >>>> [INFO] Scanning for projects... >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] Building bar >>>> [INFO] task-segment: [compile] >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] [antrun:run {execution: default}] >>>> [INFO] Executing tasks >>>> [INFO] Executed tasks >>>> [INFO] Registering compile source root >>>> /home/chris/src/tests/maven/project1/bar/target/generated-sources/main/java >>>> [INFO] [resources:resources] >>>> [INFO] Using default encoding to copy filtered resources. >>>> [INFO] [compiler:compile] >>>> [INFO] Compiling 2 source files to >>>> /home/chris/src/tests/maven/project1/bar/target/classes >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] BUILD SUCCESSFUL >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> [INFO] Total time: 2 seconds >>>> [INFO] Finished at: Wed Jul 01 19:03:34 EDT 2009 >>>> [INFO] Final Memory: 7M/79M >>>> [INFO] >>>> ------------------------------------------------------------------------ >>>> >>>> Obviously there's something I'm not understanding about how Maven >>>> executes the java task. Is there something simple that I'm doing >>>> wrong? Is there an alternative way to accomplish this task that I >>>> should try (perhaps a more "Maven-native" way)? >>>> >>>> The full pom.xml is attached. >>>> >>>> Regards, >>>> Chris >>>> >>>> <project xmlns="http://maven.apache.org/POM/4.0.0"; >>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >>>> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 >>>> http://maven.apache.org/maven-v4_0_0.xsd";> >>>> <modelVersion>4.0.0</modelVersion> >>>> <groupId>foo</groupId> >>>> <artifactId>bar</artifactId> >>>> <packaging>jar</packaging> >>>> <version>1.0-SNAPSHOT</version> >>>> <name>bar</name> >>>> <url>http://maven.apache.org</url> >>>> <dependencies> >>>> <dependency> >>>> <groupId>junit</groupId> >>>> <artifactId>junit</artifactId> >>>> <version>3.8.1</version> >>>> <scope>test</scope> >>>> </dependency> >>>> <dependency> >>>> <groupId>xtc</groupId> >>>> <artifactId>xtc</artifactId> >>>> <version>1.14.2</version> >>>> <scope>system</scope> >>>> <systemPath>${basedir}/lib/xtc.jar</systemPath> >>>> </dependency> >>>> </dependencies> >>>> <build> >>>> <plugins> >>>> <!-- Run Rats! on some files --> >>>> <plugin> >>>> <artifactId>maven-antrun-plugin</artifactId> >>>> <executions> >>>> <execution> >>>> <phase>generate-sources</phase> >>>> <configuration> >>>> <tasks> >>>> <mkdir >>>> dir="${project.build.directory}/generated-sources/main/java/" /> >>>> <java classpath="lib/xtc.jar" >>>> classname="xtc.parser.Rats"> >>>> <arg line="-in ${project.build.sourceDirectory}" /> >>>> <arg line="-out >>>> ${project.build.directory}/generated-sources/main/java/" /> >>>> <arg path="${project.build.sourceDirectory}/Dot.rats" >>>> /> >>>> </java> >>>> <!-- <echo >>>> file="${project.build.directory}/generated-sources/main/java/Dot.java"> >>>> --> >>>> <!-- public class Dot { } --> >>>> <!-- </echo> --> >>>> </tasks> >>>> <sourceRoot> >>>> ${project.build.directory}/generated-sources/main/java >>>> </sourceRoot> >>>> </configuration> >>>> <goals> >>>> <goal>run</goal> >>>> </goals> >>>> </execution> >>>> </executions> >>>> </plugin> >>>> </plugins> >>>> </build> >>>> </project> >>>> >>>> >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: [email protected] >>>> For additional commands, e-mail: [email protected] >>>> >>> >>> >> >> -- >> View this message in context: >> http://www.nabble.com/maven-antrun-plugin%3A-Java-classes-don%27t-compile-after-an-Ant-task-tp24300991p24325361.html >> Sent from the Maven - Users mailing list archive at Nabble.com. >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > > -- View this message in context: http://www.nabble.com/maven-antrun-plugin%3A-Java-classes-don%27t-compile-after-an-Ant-task-tp24300991p24325869.html Sent from the Maven - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
