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Maven Build Problem: NPE@getJarAndDependencies(AbstractGwtMojo.java:295) (Archetype for Vaadin Touchkit) #54

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vaadin-bot opened this issue Oct 1, 2014 · 4 comments
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Maven Build Problem: NPE@getJarAndDependencies(AbstractGwtMojo.java:295) (Archetype for Vaadin Touchkit) #54

vaadin-bot opened this issue Oct 1, 2014 · 4 comments
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Originally by JensV

Maven Build Problem: NPE@getJarAndDependencies(AbstractGwtMojo.java:295) (Archetype for Vaadin Touchkit)

  1. Create a new maven project from archetype of Vaadin Touchkit (although I guess this problem not specific to Touchkit)
  2. Update the involved version numbers to the most recent stable (production) ones (see pom.xml below).
  3. Run: mvn clean install

Then the build fails with the NPE:

Caused by: java.lang.NullPointerException
        at org.codehaus.mojo.gwt.AbstractGwtMojo.getJarAndDependencies(AbstractGwtMojo.java:295)

Full stacktrace:


[ERROR] Failed to execute goal com.vaadin:vaadin-maven-plugin:7.3.2:resources (default) on project myproject: Execution default of goal com.vaadin:vaadin-maven-plugin:7.3.2:resources failed. NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal com.vaadin:vaadin-maven-plugin:7.3.2:resources (default) on project myproject: Execution default of goal com.vaadin:vaadin-maven-plugin:7.3.2:resources failed.
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:483)
        at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal com.vaadin:vaadin-maven-plugin:7.3.2:resources failed.
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 25 more
Caused by: java.lang.NullPointerException
        at org.codehaus.mojo.gwt.AbstractGwtMojo.getJarAndDependencies(AbstractGwtMojo.java:295)
        at org.codehaus.mojo.gwt.AbstractGwtMojo.getGwtUserJar(AbstractGwtMojo.java:274)
        at org.codehaus.mojo.gwt.AbstractGwtModuleMojo.readModule(AbstractGwtModuleMojo.java:186)
        at org.codehaus.mojo.gwt.GwtResourcesBaseMojo.getAllResourceFiles(GwtResourcesBaseMojo.java:79)
        at org.codehaus.mojo.gwt.GwtResourcesMojo.execute(GwtResourcesMojo.java:57)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        ... 26 more

pom.xml:


<?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>com.company.myproject</groupId>
    <artifactId>myproject</artifactId>
    <packaging>war</packaging>
    <version>1.0-SNAPSHOT</version>
    <name>project - Vaadin TouchKit Web Application</name>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <vaadin.version>7.3.2</vaadin.version>
        <touchkit.version>4.0.0</touchkit.version>
    </properties>
    <repositories>
        <repository>
            <id>vaadin-addons</id>
            <url>http://maven.vaadin.com/vaadin-addons</url>
        </repository>
        <repository>
            <id>vaadin-snapshots</id>
            <url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
            <releases>
                <enabled>false</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>vaadin-snapshots</id>
            <url>http://oss.sonatype.org/content/repositories/vaadin-snapshots/</url>
            <releases>
                <enabled>false</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </pluginRepository>
    </pluginRepositories>
    <dependencies>
        <dependency>
            <groupId>com.vaadin.addon</groupId>
            <artifactId>vaadin-touchkit-agpl</artifactId>
            <version>${touchkit.version}</version>
            <type>jar</type>
        </dependency>
        <dependency>
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-server</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <!-- Needed for possible offline mode -->
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client</artifactId>
            <version>${vaadin.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <!-- Needed in eclipse for compiling widgetset -->
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client-compiler</artifactId>
            <version>${vaadin.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <!-- Desktop fallback uses reindeer theme -->
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-themes</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <!-- Desktop fallback uses default widgetset -->
            <groupId>com.vaadin</groupId>
            <artifactId>vaadin-client-compiled</artifactId>
            <version>${vaadin.version}</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>

            <plugin>
                <groupId>com.vaadin</groupId>
                <artifactId>vaadin-maven-plugin</artifactId>
                <version>${vaadin.version}</version>
                <configuration>
                    <webappDirectory>${basedir}/src/main/webapp/VAADIN/widgetsets
                    </webappDirectory>
                    <hostedWebapp>${basedir}/src/main/webapp/VAADIN/widgetsets
                    </hostedWebapp>
                    <extraJvmArgs>-Xmx1g -Xss4024k</extraJvmArgs>
                    <noServer>true</noServer>
                    <!-- Remove draftCompile when project is ready -->
                    <draftCompile>false</draftCompile>
                    <compileReport>false</compileReport>
                    <style>OBF</style>
                    <persistentunitcachedir>${project.build.directory}</persistentunitcachedir>
                    <deploy>${project.build.directory}/gwt-deploy</deploy>
                    <runTarget>http://localhost:8080/</runTarget>
                    <extraJvmArgs>-Xmx1024M -Xss4024k -XX:MaxPermSize=128m</extraJvmArgs>
                    <modules>
                        <module>com.company.gwt.projectWidgetSet</module>
                    </modules>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>resources</goal>
                            <goal>update-widgetset</goal>
                            <goal>compile</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

            <!-- As we are doing "inplace" GWT compilation, ensure the widgetset -->
            <!-- directory is cleaned properly -->
            <plugin>
                <artifactId>maven-clean-plugin</artifactId>
                <version>2.5</version>
                <configuration>
                    <filesets>
                        <fileset>
                            <directory>src/main/webapp/VAADIN/widgetsets</directory>
                        </fileset>
                    </filesets>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.mortbay.jetty</groupId>
                <artifactId>jetty-maven-plugin</artifactId>
                <version>8.1.15.v20140411</version>
            </plugin>
        </plugins>

    </build>
</project>

Imported from https://dev.vaadin.com/ issue #14788
@vaadin-bot
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Originally by @Artur-

This NPE apparently is thrown if the gwt.xml file for the configured module could not be found.

@vaadin-bot
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Originally by @hesara

Caused by the resources mojo/goal when vaadin-client has scope "provided".

@vaadin-bot
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Originally by @Artur-

Is this a duplicate of #17125?

@vaadin-bot
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Originally by @Artur-

Can't reproduce with 7.5.6

@vaadin-bot vaadin-bot added the bug label Oct 13, 2016
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