How to compile a widgetSet in vaadin? - gwt

I am trying to use the visualizationsForVaadin add-on. The problem is, that I have to compile a custom widgetSet. I've been dealing with this the whole day, and still cannot compile it. First of all, here is my configuration:
Vaadin 6.7.1
gwt 2.3.0
following dependencies are in my pom file:
gwt-ajaxloader 1.1.0
validation-api 1.0.0.GA
gwt-visualization 1.0.2
gwt-user 2.3.0
visualizationsforvaadin 1.1.2.
When I try to compile the widgetSet with maven gwt plugin I get an exception:
Loading inherited module 'com.google.gwt.core.XSLinker'
[ERROR] Line 22: Unexpected element 'when-linker-added'
[ERROR] Failure while parsing XML
An interesting thing is, that the gwt-dev library, that is automatically loaded (as far as I know) is of version 2.0.3
I have tried everything possible (even impossible) and still nothing. At some point I had other exceptions complaining that the import of validation classes could not be resolved. I think, that has been resolved by some other dependencies. Please help. Thank you.
POM configuration:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<!-- Version 2.1.0-1 works at least with Vaadin 6.5 -->
<version>2.3.0</version>
<configuration>
<!-- if you don't specify any modules, the plugin will find them -->
<!--modules>
..
</modules-->
<webappDirectory>${project.build.directory}/${project.build.finalName}/VAADIN/widgetsets</webappDirectory>
<extraJvmArgs>-Xmx512M -Xss1024k</extraJvmArgs>
<runTarget>clean</runTarget>
<hostedWebapp>${project.build.directory}/${project.build.finalName}</hostedWebapp>
<noServer>true</noServer>
<port>8080</port>
<soyc>false</soyc>
</configuration>
<executions>
<execution>
<goals>
<goal>resources</goal>
<goal>compile</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-dev</artifactId>
<version>2.3.0</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
</dependency>
</dependencies>
</plugin>
And here are the GWT dependencies
<dependency>
<groupId>com.google.gwt.google-apis</groupId>
<artifactId>gwt-visualization</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
<version>1.0.0.GA</version>
</dependency>
<dependency>
<groupId>com.google.gwt.google-apis</groupId>
<artifactId>gwt-ajaxloader</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.vaadin.addons</groupId>
<artifactId>visualizationsforvaadin</artifactId>
<version>1.1.2</version>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
</dependency>

I struggled with this over the past 2 days.
For future reference:
What you'll need:
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-client-compiler</artifactId>
<version>${versions.vaadin}</version>
</dependency>
Configure gwt-maven-plugin as follows (you may not need all configs that I used, of course):
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>${versions.gwt}</version>
<configuration>
<extraJvmArgs>-Xmx512M -Xss1024k</extraJvmArgs>
<webappDirectory>${basedir}/src/main/webapp/VAADIN/widgetsets
</webappDirectory>
<hostedWebapp>${basedir}/src/main/webapp/VAADIN/widgetsets
</hostedWebapp>
<noServer>true</noServer>
<draftCompile>true</draftCompile>
<compileReport>false</compileReport>
<style>DETAILED</style>
<runTarget>http://localhost:8080/</runTarget>
</configuration>
<executions>
<execution>
<goals>
<goal>resources</goal>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
The vaadin-maven-plugin:
<plugin>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-maven-plugin</artifactId>
<version>${versions.vaadin}</version>
<executions>
<execution>
<configuration>
<!--<modules>
<module>org.vaadin.aceeditor.AceEditorWidgetSet</module>
</modules>-->
</configuration>
<goals>
<goal>update-widgetset</goal>
</goals>
</execution>
</executions>
</plugin>
You may also want to configure your maven-clean-plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
<configuration>
<filesets>
<fileset>
<directory>
${basedir}/src/main/webapp/VAADIN/widgetsets
</directory>
</fileset>
</filesets>
</configuration>
</plugin>
In web.xml for your servlet (Ace Editor as an example):
<init-param>
<param-name>widgetset</param-name>
<param-value>org.vaadin.aceeditor.AceEditorWidgetSet</param-value>
</init-param>
Note that I did NOT include gwt as a dependency in my pom.xml.

I have a fully functional Vaadin project with custom widgets in Eclipse and I can't find any references to gwt-dev anywhere in the project. Go to Project properties -> Java Build Path -> Libraries and delete all references to gwt-dev. Also remove it from your pom.xml and try to recompile the widgetset.
edit: It could also be your gwt-user dependency. Try setting the version of gwt-user to 2.3.0 (if it already isn't) and set the scope to provided.

Related

java.lang.NoClassDefFoundError: org/apache/spark/internal/Logging

My Spark Streaming program received the following error:
Exception in thread "main" java.lang.NoClassDefFoundError:org/apache/spark/internal/Logging
My version of spark is 2.1, which is the same as the version running in the cluster.
The information I found on the Internet prompted me that the old version of org.apache.spark.Logging became org.apache.spark.internal.Logging in the new version, which prevented the jar package from being found. But the dependency introduced in my pom is a new version. Why can't I find the jar package?
<properties>
<spark.version>2.1.0</spark.version>
<scala.version>2.11</scala.version>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-core_${scala.version}</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming_${scala.version}</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-sql_${scala.version}</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-hive_${scala.version}</artifactId>
<version>${spark.version}</version>
</dependency>
<dependency>
<groupId>org.apache.spark</groupId>
<artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
<version>2.1.0</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-client</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.scala-tools</groupId>
<artifactId>maven-scala-plugin</artifactId>
<version>2.15.2</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.scala-tools</groupId>
<artifactId>maven-scala-plugin</artifactId>
<version>2.15.2</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19</version>
<configuration>
<skip>true</skip>
</configuration>
</plugin>
</plugins>
</build>
I have encountered java.lang.NoClassDefFoundError several times.I have Spark-2.3.1 installed so I think it should work in your case too.
In my case, java.lang.NoClassDefFoundError:org/apache/spark/internal/Logging should come from spark-core_2.11-2.3.1.jar and in your case, it should be coming from spark-core_2.11-2.1.0.jar based on your spark and scala version mentioned in the question
When you look at the source code, it is using org.slf4j._ classes. So my recommendation would be to add this dependency in your pom and then try.
For NoClassDefFoundError, it is always better to find the jar which is generating this error and then try to backtrack it.
Below is how you can find out which jar is causing the NoClassDefFound error, assuming you have all the dependency jars in ~/spark/jars location.
for i in `ls ~/spark/jars/*.jar`;
do
jar tvf $i | grep org/apache/spark/internal/Logging;
echo "************** $i ************** ";
done
Please let me know if this solved your issue.

AspectJ not working with Maven in my webapp (Eclipse)

I have a Webservice Maven project running on Websphere 8.0 and im trying to implement AOP with Aspectj in it without any result.
The aspect class definition its ok (I can tell because its the same in every example I see) and as I can tell the pom its good too. I will add the code to be sure :
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.7.0</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>1.6.11</version>
</dependency>
and the plugin
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.4</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</execution>
</executions>
</plugin>
So when I consume a service with the method annotation nothing happens, no error no log no nothing! I dont know if its not weaving the project or what its going on.
If u guys need more info let me know!
If your aspect definitions are in another project, then you need to include them into the project that is using them as follows:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<configuration>
<outxml>true</outxml>
<aspectLibraries>
<aspectLibrary>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</aspectLibrary>
</aspectLibraries>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
Note: change spring-aspects to your project artefact

M2E not adding Groovy source to .classpath on import existing maven project

Using Eclipse Indigo to import existing maven project, the resulting workspace project does not include src/main/groovy or src/test/groovy in the build path. I would also like to have the output dir for the groovy code set to target/test-classes.
This is my first question to this excellent group, so I hope I cover all of the bases.
Environment:
Eclipse Indigo
m2e - Maven Integration for Eclipse 1.2.0.20120903-1050 org.eclipse.m2e.feature.feature.group Eclipse.org - m2e
m2e connector for build-helper-maven-plugin 0.15.0.201207090124 org.sonatype.m2e.buildhelper.feature.feature.group Sonatype, Inc.
APT M2E Connector 0.0.1.3 de.joe.m2e.apt.feature.feature.group null
Groovy-Eclipse Feature 2.5.2.xx-20110929-1800-e37 org.codehaus.groovy.eclipse.feature.feature.group Codehaus.org
Groovy-Eclipse M2E integration 2.7.1.xx-20120921-2000-e37RELEASE org.codehaus.groovy.m2eclipse.feature.group Codehaus.org
Tycho Project Configurators 0.6.0.201207302152 org.sonatype.tycho.m2e.feature.feature.group Sonatype, Inc.
My pom.xml for the project is:
<?xml version="1.0" encoding="UTF-8"?>
<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>
<parent>
<groupId>com.jha.yhs</groupId>
<artifactId>fraud.server.parent</artifactId>
<version>201203.8.0-SNAPSHOT</version>
</parent>
<artifactId>ach-wire</artifactId>
<dependencies>
<dependency>
<groupId>com.jha.yhs</groupId>
<artifactId>aspects</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>com.jha.yhs</groupId>
<artifactId>database</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>r09</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>1.7.6</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.spockframework</groupId>
<artifactId>spock-core</artifactId>
<version>0.5-groovy-1.7</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.3.155</version>
</dependency>
<dependency>
<groupId>org.dbunit</groupId>
<artifactId>dbunit</artifactId>
<version>2.4.8</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<scope>test</scope>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.8.5</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.3</version>
</plugin>
</plugins>
</build>
</project>
Now this pom.xml is a child (in a subdirectory) of another pom.xml which contains:
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<compilerVersion>1.6</compilerVersion>
<source>1.6</source>
<target>1.6</target>
<compilerArguments>
<encoding>windows-1252</encoding>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/groovy</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-test-source</id>
<phase>generate-test-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/test/groovy</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.4.2</version>
<configuration>
<argLine>-Xmx1024m -XX:MaxPermSize=256m -XX:-HeapDumpOnOutOfMemoryError</argLine>
<includes>
<include>**/UnitTests.java</include>
</includes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.9</version>
<executions>
<execution>
<id>integration-test</id>
<goals>
<goal>integration-test</goal>
</goals>
</execution>
<execution>
<id>verify</id>
<goals>
<goal>verify</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>gmaven-plugin</artifactId>
<version>1.3</version>
<dependencies>
<dependency>
<groupId>org.codehaus.gmaven.runtime</groupId>
<artifactId>gmaven-runtime-1.7</artifactId>
<version>1.3</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-all</artifactId>
<version>1.7.6</version>
</dependency>
</dependencies>
<configuration>
<providerSelection>1.7</providerSelection>
</configuration>
<executions>
<execution>
<goals>
<goal>generateStubs</goal>
<goal>compile</goal>
<goal>generateTestStubs</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
please note, I can add the groovy source folders using:
- the GUI's build path
- by editing the .classpath file
- run mvn eclipse:eclipse from the command line and the groovy source dir's get added to .classpath but not the output directories.
However, looking at: this and this using build-helper should solve the problem. I have tried putting the build-helper reference into the project pom.xml with no change in behavior. I have also tried using the maven-eclipse plugin to set the additional source folders as described here and
We have four of these sub projects that use groovy and I would love to not have to add the groovy folders and output folders for main and test for each of them whenever we pull new code from SVN. It seems that M2E's import maven project just doesn't work correctly. Neither does maven->updateProject for that matter. What am I missing from this?
As a work around, it seems that m2e 1.2 does not overwrite the .classpath and .project files like m2e 1.0 liked to do, so I can always manually configure the .classpath and .project files and put them into source control.
I am using Groovy in webapp developing with Maven. But I am using groovy-eclipse-compiler. First, I configure Maven compiler plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerId>groovy-eclipse-compiler</compilerId>
</configuration>
<dependencies>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-compiler</artifactId>
<version>${groovy-eclipse-compiler.version}</version>
</dependency>
</dependencies>
</plugin>
Then, I configure source directories:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/groovy</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-test-source</id>
<phase>generate-test-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/test/groovy</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
After that, I am able to use Groovy with Eclipse + m2e (actually, I am using Springsource Tool Suite with Groovy plugin). I have Groovy syntax and autocompletion (far from ideal), also I can use Groovy classes from Java and vice versa.

GWT maven project with server side dependencies

I have a maven GWT project under eclipse and since I added some server side dependencies the maven plugin doesn't compile anymore. Here follows more info about the context:
maven 3.0.3;
GWT 1.5.3;
GWT maven plugin org.codehaus.mojo:gwt-maven-plugin:1.2 (the latest compatible with GWT 1.5.3, http://mojo.codehaus.org/gwt-maven-plugin-1.2/).
The goal gwt:compile of the GWT maven plugin completes successfully if I don't add dependencies other than the GWT ones:
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
When I add any other dependency, the goal gwt:compile fails:
[INFO] establishing classpath list (scope = compile)
[ERROR] Exception in thread "main" java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.Compiler.<init>(Lorg/eclipse/jdt/internal/compiler/env/INameEnvironment;Lorg/eclipse/jdt/internal/compiler/IErrorHandlingPolicy;Lorg/eclipse/jdt/internal/compiler/impl/CompilerOptions;Lorg/eclipse/jdt/internal/compiler/ICompilerRequestor;Lorg/eclipse/jdt/internal/compiler/IProblemFactory;)V
[ERROR] at com.google.gwt.dev.javac.JdtCompiler$CompilerImpl.<init>(JdtCompiler.java:93)
[ERROR] at com.google.gwt.dev.javac.JdtCompiler.<init>(JdtCompiler.java:231)
[ERROR] at com.google.gwt.dev.javac.JdtCompiler.compile(JdtCompiler.java:193)
[ERROR] at com.google.gwt.dev.javac.CompilationState.compile(CompilationState.java:115)
[ERROR] at com.google.gwt.dev.GWTCompiler.distill(GWTCompiler.java:327)
[ERROR] at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:564)
[ERROR] at com.google.gwt.dev.GWTCompiler.run(GWTCompiler.java:554)
[ERROR] at com.google.gwt.dev.GWTCompiler.main(GWTCompiler.java:214)
I did search a configuration parameter about classpath/dependencies in the gwt:compile (http://mojo.codehaus.org/gwt-maven-plugin-1.2/compile-mojo.html) with no success.
I would like to use server side dependencies alongside GWT ones telling the GWT plugin to not consider the non-GWT dependencies.
working pom (gwt:compile completes successfully):
<?xml version="1.0" encoding="UTF-8"?>
<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>mygroupid</groupId>
<artifactId>projectname</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>project name</name>
<organization>
<name>My company</name>
<url>my company url</url>
</organization>
<properties>
<gwt.version>1.5.3</gwt.version>
</properties>
<build>
<finalName>final name</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
<encoding>UTF-8</encoding>
</configuration>
<version>2.5.1</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<configuration>
<ajdtVersion>none</ajdtVersion>
</configuration>
<version>2.9</version>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
<configuration>
<runTarget>org.mycompany.myproject.Main/welcomeGWT.html</runTarget>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<configuration>
<warSourceDirectory>war</warSourceDirectory>
<webXml>src/main/webapp/WEB-INF/web.xml</webXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<!-- GWT -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
not working pom (gwt:compile throws exception):
<?xml version="1.0" encoding="UTF-8"?>
<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>mygroupid</groupId>
<artifactId>projectname</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>project name</name>
<organization>
<name>My company</name>
<url>my company url</url>
</organization>
<properties>
<gwt.version>1.5.3</gwt.version>
</properties>
<build>
<finalName>final name</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
<encoding>UTF-8</encoding>
</configuration>
<version>2.5.1</version>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<configuration>
<ajdtVersion>none</ajdtVersion>
</configuration>
<version>2.9</version>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>gwt-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
<configuration>
<runTarget>org.mycompany.myproject.Main/welcomeGWT.html</runTarget>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<configuration>
<warSourceDirectory>war</warSourceDirectory>
<webXml>src/main/webapp/WEB-INF/web.xml</webXml>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>org.apache.ibatis</groupId>
<artifactId>ibatis-sqlmap</artifactId>
<version>2.3.4.726</version>
</dependency>
<dependency>
<groupId>net.sf.jasperreports</groupId>
<artifactId>jasperreports</artifactId>
<version>3.6.0</version>
</dependency>
<!-- GWT -->
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-servlet</artifactId>
<version>${gwt.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.google.gwt</groupId>
<artifactId>gwt-user</artifactId>
<version>${gwt.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
</project>
Are you using JasperReport in our project? I remember having a problem using JasperReport and GWT. JasperReport includes a different version of the org.eclipse.jdt.internal.compiler.Compiler than what GWT is expecting.
I think you can fix this by simply changing the order of the class path (was already suggested in the comments). If that does not help, try to update your GWT version. Or try to find a version of JasperReport which includes a version of the org.eclipse.jdt.internal.compiler.Compile class that works with GWT.
I faced a similar error in our QA Linux environment during deployment of our web application and we managed to fix it. This problem wasn't even there when I deployed into my local Windows 10 and Linux Ubuntu virtual machine. My environment configuration is as follows
Ubuntu 16.04 LTS
Apache Maven 3.3.3
Apache Tomcat/8.0.32 (Ubuntu)
JVM 1.8.0_91-8u91-b14-0ubuntu4~16.04.1-b14
The problem was because there were two eclipse Compiler classes that were found in two different jar files, and this creates conflicts in the classpath during tomcat deployment. The culprits are files ecj.jar and jdtcore.jar
My original pom.xml snipet is as below
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-compiler</artifactId>
<version>6.3.0.Final</version>
</dependency>
<dependency>
<groupId>net.sourceforge.dynamicreports</groupId>
<artifactId>dynamicreports-core</artifactId>
<version>3.1.3</version>
</dependency>
The Maven dependency tree for drools-compiler introduces ecj.jar file.
The Maven dependency for dynamicreports-core.jar file that has jasperreports.jar that in turn introduces jdtcore.jar file.
Solution:
We upgraded the version of dynamicreports-core that introduces jasperreports.jar file.
Note:
I was able to fix this issue after reading http://www.cnblogs.com/xiaoMzjm/p/4566672.html. Credits to this blogger.
<dependency>
<groupId>net.sourceforge.dynamicreports</groupId>
<artifactId>dynamicreports-core</artifactId>
<version>4.1.0</version>
</dependency>

Eclipse Helios + maven m2e + Groovy == FAIL

Ever since I've installed the new m2e plugin for maven, my Groovy project no longer builds. I'm using the groovy-compiler-plugin as described here. I get the old "plugin execution not covered..." error for the maven-compiler-plugin. I've tried both execute and ignore for the goals "testCompile" and "compile" as described in the error.
I can't use GMaven due to some arcane compiler issues. I also am locked to Maven 2.2.1 due to my company's build process. The old m2eclipse plugin is gone, and the documentation for m2e is atrocious.
I am at my wits end with this. Nowhere else do I see this issue. I can't be the only one.
If I can't find a solution to this very soon, I'm either scrapping maven for some hacked Gradle implementation (though I can't use that either), or I'm moving over to NetBeans, which is not a winning proposition.
As requested, the pom snippet is below.
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.5</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/groovy</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-test-source</id>
<phase>generate-test-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/test/groovy</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<compilerId>groovy-eclipse-compiler</compilerId>
<verbose>true</verbose>
<source>1.6</source>
<target>1.6</target>
</configuration>
<dependencies>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-batch</artifactId>
<version>1.8.0-03</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-compiler</artifactId>
<version>2.5.1</version>
<exclusions>
<exclusion>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-batch</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<versionRange>[2.3.1,)</versionRange>
<goals>
<goal>testCompile</goal>
<goal>compile</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-compiler</artifactId>
<versionRange>[2.5.1,)</versionRange>
<goals>
<goal>testCompile</goal>
<goal>compile</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
First, you must install the correct configurator. I am assuming that you are using m2e version 1.0. If that is the case, then you must install the newer version of the Groovy-Eclipse configurator for m2e. At this update site:
http://dist.codehaus.org/groovy/distributions/greclipse/snapshot/e3.6/
(do not use the groovy-m2eclipse-new update site. It is outdated and will go away soon.)
I haven't done extensive testing for the configurator on Eclipse 3.6, but it should work. I do recommend that you upgrade to Eclipse Indigo because things will generally work better on Indigo.
Second, you need to fix your pom.xml. Remove the reference to the org.eclipse.m2e plugin.
Take a look at the following link I posted in groovy user group. Note, I used spring STS which is just a better eclipse. I am also pasting my pom for a test suite for your reference, please note the sourceincludes element carefully. I was also at my wits end trying to fix this, but it definitely works now. Also, please make sure that the maven in eclipse points to the same one you installed in your machine otherwise it can also cause issues.
[Update] Also install either of the following plugins depending on your eclipse version to provide Groovy - Maven integration
http://dist.codehaus.org/groovy/distributions/greclipse/groovy-m2eclipse-new/ or
http://dist.codehaus.org/groovy/distributions/greclipse/groovy-m2eclipse/
<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>com.example.org</groupId>
<artifactId>test-suite</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>test-suite</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<repositories>
<repository>
<id>jetlang.googlecode.com</id>
<name>Jetlang Repository for Maven</name>
<url>http://jetlang.googlecode.com/svn/repo/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.1.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.ws</groupId>
<artifactId>spring-ws-core</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.ws</groupId>
<artifactId>spring-ws-support</artifactId>
<version>2.0.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.0.5.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetlang</groupId>
<artifactId>jetlang</artifactId>
<version>0.2.5</version>
</dependency>
<!-- Database pool -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<!-- ORACLE database driver -->
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc5</artifactId>
<version>11.2.0.1.0</version>
</dependency>
<dependency>
<groupId>jdom</groupId>
<artifactId>jdom</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>jaxen</groupId>
<artifactId>jaxen</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>xalan</groupId>
<artifactId>xalan</artifactId>
<version>2.7.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
</dependency>
<!-- Groovy jar -->
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy</artifactId>
<version>1.8.0</version>
<type>jar</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<compilerId>groovy-eclipse-compiler</compilerId>
<compilerArgument>nowarn</compilerArgument>
<!--<verbose>true</verbose> -->
</configuration>
<dependencies>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-compiler</artifactId>
<version>2.5.1-1</version>
</dependency>
<dependency>
<groupId>org.codehaus.groovy</groupId>
<artifactId>groovy-eclipse-batch</artifactId>
<version>1.8.0-03</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.8</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.eclipse.jdt.groovy.core.groovyNature</projectnature>
</additionalProjectnatures>
<sourceIncludes>
<sourceInclude>**/*.groovy</sourceInclude>
</sourceIncludes>
</configuration>
</plugin>
</plugins>
</build>