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Andrei Serea commented on MNG-6031: ----------------------------------- Well, the class loading problem is valid for any ant task that uses the slf4j library. For this case in particular, I cannot switch to cobertura-maven-plugin because, for some reason, it lacks the cobertura-merge goal which I need to implement an integration-tests scenario similar to the one described on [their page|http://www.mojohaus.org/cobertura-maven-plugin/cobertura-integration-test-mojo.html]. > Moving from Maven 3.2.5 or older to Maven 3.3.1 or newer breaks > maven-antrun-plugin > ----------------------------------------------------------------------------------- > > Key: MNG-6031 > URL: https://issues.apache.org/jira/browse/MNG-6031 > Project: Maven > Issue Type: Bug > Components: Class Loading, core > Affects Versions: 3.3.3, 3.3.9 > Environment: Windows 7, JDK 1.8.0_51 > Reporter: Andrei Serea > Priority: Blocker > Attachments: pom.xml > > > Running with maven-antrun-plugin an ant target that requires SLF4J breaks > with a NoClassDefFoundError. > The example attached calls the cobertura-merge ant task and the error is: > Exception in thread "main" java.lang.NoClassDefFoundError: > org/slf4j/LoggerFactory > {code} > [INFO] Scanning for projects... > [INFO] > > [INFO] > ------------------------------------------------------------------------ > [INFO] Building Cobertura Merge test 1.12-SNAPSHOT > [INFO] > ------------------------------------------------------------------------ > [INFO] > [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ cobertura-report --- > [INFO] Deleting C:\IBXProjects\SUE\git\discovery\src\java\cobertura\target > [INFO] > [INFO] --- maven-antrun-plugin:1.8:run (cobertura-merge-base) @ > cobertura-report --- > [INFO] Executing tasks > main: > [cobertura-merge] Cobertura 2.1.1 - GNU GPL License (NO WARRANTY) - See > COPYRIGHT file > [cobertura-merge] Exception in thread "main" java.lang.NoClassDefFoundError: > org/slf4j/LoggerFactory > [cobertura-merge] at > net.sourceforge.cobertura.util.CommandLineBuilder.<clinit>(CommandLineBuilder.java:73) > [cobertura-merge] at > net.sourceforge.cobertura.merge.MergeMain.merge(MergeMain.java:66) > [cobertura-merge] at > net.sourceforge.cobertura.merge.MergeMain.main(MergeMain.java:77) > [cobertura-merge] Caused by: java.lang.ClassNotFoundException: > org.slf4j.LoggerFactory > [cobertura-merge] at > java.net.URLClassLoader.findClass(URLClassLoader.java:381) > [cobertura-merge] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > [cobertura-merge] at > sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) > [cobertura-merge] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > [cobertura-merge] ... 3 more > [INFO] > ------------------------------------------------------------------------ > [INFO] BUILD FAILURE > [INFO] > ------------------------------------------------------------------------ > [INFO] Total time: 2.265 s > [INFO] Finished at: 2016-05-31T18:59:31+03:00 > [INFO] Final Memory: 9M/119M > [INFO] > ------------------------------------------------------------------------ > [ERROR] Failed to execute goal > org.apache.maven.plugins:maven-antrun-plugin:1.8:run (cobertura-merge-base) > on project cobertura-report: An Ant BuildException has occured: Error running > reports. See messages above. > [ERROR] around Ant part ...<cobertura-merge > datafile="C:\.......\cobertura\target/cobertura/cobertura.ser">... @ 5:114 in > C:\..........\cobertura\target\antrun\build-main.xml > [ERROR] -> [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 > {code} > The pom used: > {code} > <?xml version="1.0" encoding="UTF-8"?> > <project > xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 > http://maven.apache.org/xsd/maven-4.0.0.xsd"; > xmlns="http://maven.apache.org/POM/4.0.0"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";> > <modelVersion>4.0.0</modelVersion> > <properties> > <cobertura.version>2.1.1</cobertura.version> > </properties> > <groupId>org.tests</groupId> > <artifactId>cobertura-report</artifactId> > <version>1.12-SNAPSHOT</version> > <name>Cobertura Merge test</name> > <packaging>pom</packaging> > <build> > <finalName>cobertura-report</finalName> > <plugins> > <plugin> > <groupId>org.apache.maven.plugins</groupId> > <artifactId>maven-antrun-plugin</artifactId> > <version>1.8</version> > <dependencies> > <dependency> > <groupId>org.slf4j</groupId> > > <artifactId>slf4j-api</artifactId> > <version>1.7.5</version> > </dependency> > <dependency> > > <groupId>net.sourceforge.cobertura</groupId> > > <artifactId>cobertura</artifactId> > > <version>${cobertura.version}</version> > </dependency> > </dependencies> > <executions> > <!-- restart the wildfly servers at the > beginning--> > <execution> > <id>cobertura-merge-base</id> > <phase>package</phase> > <goals> > <goal>run</goal> > </goals> > <configuration> > <target> > <taskdef > name="cobertura-merge" classname="net.sourceforge.cobertura.ant.MergeTask" > classpathref="maven.plugin.classpath"/> > > <cobertura-merge > datafile="${project.build.directory}/cobertura/cobertura.ser"> > > <fileset dir="${project.basedir}/../"> > > <include name="*.ser"/> > > </fileset> > > </cobertura-merge> > </target> > </configuration> > </execution> > </executions> > </plugin> > </plugins> > </build> > </project> > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)
