Overlays are duplicated on classpath when war runs with maven-jetty-plugin - maven

In my project I use war overlays. In first base war in src/main/resources I have file my-file.txt. Second war depends on first war.
Second war has a code to lookup for my-file.txt on classpath:
Enumeration<URL> urls = MyListener.class.getClassLoader().getResources("my-file.txt");
while (urls.hasMoreElements()) {
System.out.println("This is my resource:" + urls.nextElement());
}
My output is (mvn jetty:run):
This is my resource:jar:file:/C:/Users/michaldo/.m2/repository/war-plus-war/war1/0.0.1-SNAPSHOT/war1-0.0.1-SNAPSHOT-classes.jar!/my-file.txt
This is my resource:jar:file:/C:/Users/michaldo/workspace-n1/war-plus-war/war2/target/tmp/war1-0_0_1-SNAPSHOT_war1/WEB-INF/lib/war1-0.0.1-SNAPSHOT.jar!/my-file.txt
Can I configure maven jetty plugin and avoid duplication?
My maven-war-plugin configuration (jetty has default configuration):
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<archiveClasses>true</archiveClasses>
<attachClasses>true</attachClasses>
<dependentWarExcludes>
WEB-INF/lib/*-*.jar
</dependentWarExcludes>
</configuration>
</plugin>

The problem is that dependentWarExcludes is deprecated (and even not supported in maven-war-plugin 3.0
Maven Jetty plugin works as expected when I move exclusion to overlay config:
<build><plugins><plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<overlays>
<overlay>
<groupId>war-plus-war</groupId>
<artifactId>war1</artifactId>
<excludes><exclude>
WEB-INF/lib/*-*.jar
</exclude></excludes>
</overlay>
</overlays>
</configuration>
</plugin></plugins></build>

Related

Excluding JAR Files From the EAR using maven

My EAR includes 8 JAR files which are in the root of my EAR. I want to delete two of them for my final deployment EAR package.
I was trying do this as it is described here:
https://maven.apache.org/plugins/maven-ear-plugin/examples/excluding-files-from-ear.html
But seem not to work.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.6</version>
<configuration>
<packagingExcludes>test1.jar,test2.jar</packagingExcludes>
</configuration>
...
</plugin>

I don't want to include external jar in my maven war

I don't want to include external jars when I build a war.What should I do?
Though not sure about why are you thinking to exclude the jar files, but yes you can do that if you are using maven-war-plugin
This will work out
<build>
<plugins>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.6</version>
<configuration>
<packagingExcludes>WEB-INF/lib/*.jar</packagingExcludes>
</configuration>
</plugin>
</plugins>
</build>
This a whole bunch of configuration plugin that excludes all .jar files.
This source explains about that and even regex patterns that can be used.

How to make the created JAR file from Maven-WAR plugin into build path

I have used Maven -war plugin to create a JAR from another reference WAR .Now this JAR is available in the target folder.
My problem is I have to use the class which is available inside the created JAR in target folder but I am unable to get the class from JAR.
Is it possible to make available the created JAR available in the classpath through POM.
My maven WAR plugin as like below.
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<overlays>
<overlay />
<overlay>
<groupId>test.Vehicle</groupId>
<artifactId>test-location</artifactId>
</overlay>
</overlays>
<attachClasses>true</attachClasses>
</configuration>
</plugin>

Intellij IDEA artifact 'XXXX:war exploded' has invalid extension

Every time I make even the tiniest change to my POM Intellij removes the .war extension for my exploded artifact in the Project Structure output directory setting. This causes an error in Intellij's Run/Debug configuration:
Artifact 'XXXX:war exploded' has invalid extension.
In order to resolve the issue I must manually override the Project Structure output directory setting. Every time I make even the tiniest change to the POM I must go back to the Output directory setting and manually append ".war" to the end of the Output directory setting. This is getting very old and frustrating.
e.g. I must change this:
E:\workarea\enterp\application\target\application
to this:
E:\workarea\enterp\application\target\application.war
If I manually set the Maven WAR plugin outputDirectory configuration as follows, this does not help at all:
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${maven.war.plugin.version}</version>
<configuration>
<!-- Output directory of artifact:war exploded keeps losing the .war extension -->
<outputDirectory>${project.build.directory}.war</outputDirectory>
</configuration>
</plugin>
How can I resolve this problem?
EDIT:
Here's the complete build config:
<build>
<!-- Maven will append the version to the finalName (which is the name
given to the generated war, and hence the context root) -->
<finalName>${project.artifactId}</finalName>
<plugins>
<!-- Compiler plugin enforces Java 1.6 compatibility and activates annotation
processors -->
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${maven.war.plugin.version}</version>
<configuration>
<!-- Output directory of artifact:war exploded keeps losing the .war extension -->
<outputDirectory>${project.build.directory}/${project.artifactId}.war</outputDirectory>
<!-- Java EE 7 doesn't require web.xml, Maven needs to catch up! -->
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<!-- The WildFly plugin deploys your war to a local WildFly container -->
<!-- To use, run: mvn package wildfly:deploy -->
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
</plugin>
</plugins>
</build>
SECOND EDIT:
I discovered that one solution is to append ".war" to ${project.artifactId} in the build configuration, e.g.:
<finalName>${project.artifactId}.war</finalName>
and remove outputDirectory from the plugin configuration. So the build config should look like this:
<build>
<!--
Maven will make finalName the name of the generated war.
NOTE: Output directory of artifact:war exploded keeps losing the .war extension
http://youtrack.jetbrains.com/issue/IDEA-86484
http://youtrack.jetbrains.com/issue/IDEA-95162
The solution is to append ".war" to ${project.artifactId}, below:
-->
<finalName>${project.artifactId}.war</finalName>
<plugins>
<!-- Compiler plugin enforces Java 1.6 compatibility and activates annotation
processors -->
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>${maven.compiler.plugin.version}</version>
<configuration>
<source>${maven.compiler.source}</source>
<target>${maven.compiler.target}</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>${maven.war.plugin.version}</version>
<configuration>
<!-- Java EE 7 doesn't require web.xml, Maven needs to catch up! -->
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<!-- The WildFly plugin deploys your war to a local WildFly container -->
<!-- To use, run: mvn package wildfly:deploy -->
<plugin>
<groupId>org.wildfly.plugins</groupId>
<artifactId>wildfly-maven-plugin</artifactId>
<version>${version.wildfly.maven.plugin}</version>
</plugin>
</plugins>
</build>
DISCLAIMER: If you use this workaround just be aware that when you deploy an unexploded WAR artifact the file name will be named XXXX.war.war. It works -- I deployed the artifact as a WAR file in Intellij -- but it's ugly.
INFO [org.jboss.as.server.deployment] (MSC service thread 1-7) JBAS015876: Starting deployment of "XXXX.war.war" (runtime-name: "XXXX.war.war)"
If someone can tell me how to configure the Intellij project to work with Maven to select one or the other finalName values depending on whether I'm deploying a WAR file vs. exploded artifact then this question will be sufficiently answered.
<!-- Exploded artifact -->
<finalName>${project.artifactId}.war</finalName>
<!-- WAR file (unexploded) artifact -->
<finalName>${project.artifactId}</finalName>
There's a way to fix this in IntelliJ, without changing your pom.xml file(s), by adding an artifact with a reference to the exploded war (or in my case, the exploded ear) and it won't get stomped every time IntelliJ re-imports the maven pom(s). Here's how:
Stop/undeploy your current artifact deployment
Edit your run config, and in the Deployment tab, remove the current exploded war/ear artifact
Open the project's Artifacts settings and add a new artifact
Use the plus button to add a new war or (in my case) ear exploded artifact
Give it a name, then edit the Output directory to add the appropriate extension (.war or .ear)
In the Output Layout section where you see <output root>, use the plus button to add an Artifact
Select the desired exploded artifact
Edit your run config again, and in the Deployment tab, add the new workaround exploded artifact
Thanks to Nikolay Chashnikov for describing this in his comment on the bug report
Actually, you should leave the finalName attribute alone, otherwise you'll get the problems you describe. Rather, you should change the config for the maven war plugin to use the webappDirectory like this:
<plugin>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webappDirectory>${project.build.directory}/${project.artifactId}.${project.packaging}</webappDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
If we are talking about WAR inside EAR there is another way to resolve your problem by using correct configuration inside maven-ear-plugin. WAR pom.xml should be left as is, without any changes, but EAR pom.xml should contains something like this. (please, pay your attention to <unpack>${unpack.wars}</unpack>)
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.9</version>
<configuration>
<version>6</version>
<defaultLibBundleDir>lib</defaultLibBundleDir>
<generateApplicationXml>false</generateApplicationXml>
<archive>
<manifest>
<addClasspath>true</addClasspath>
</manifest>
</archive>
<modules>
<webModule>
<groupId>com.test.app</groupId>
<artifactId>test-app-war</artifactId>
<unpack>${unpack.wars}</unpack>
</webModule>
</modules>
</configuration>
</plugin>
and then you can add profiles default and debug for proper artifact assembling.
<profiles>
<profile>
<id>default</id>
<activation>
<activeByDefault>true</activeByDefault>
</activation>
<properties>
<unpack.wars>false</unpack.wars>
</properties>
</profile>
<profile>
<id>debug</id>
<activation>
<property>
<name>debug</name>
</property>
</activation>
<properties>
<unpack.wars>true</unpack.wars>
</properties>
</profile>
</profiles>
use debug profile inside IntelliJ IDEA for expanding wars and default profile for building artifacts in command line or CI (default profile would be active if no profile were provided, so your build will works as previously).
With this solution HotSwap and resources updates works as expected.
Hope this helps.
I think it's the same as this question: IntelliJ Artifact has invalid extension
Add a .war extension to the output directory as shown in my answer: https://stackoverflow.com/a/25569266/968988

How to configure a Maven plugin with classpath resource?

Today I configure the Maven war plugin like this :
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webXml>${basedir}/../common/WEB-INF/web.xml</webXml>
</configuration>
This allows me to share that web.xml between several projects.
The problem with this approach is that my Maven project is not self contained. It depends on a relative path on the file system.
Is it somehow possible to do something like this ? :
<webXml>classpath:com/mycompany/common/web.xml</webXml>
And of course, make that file available on the classpath of the plugin.
Thanks
First step is to create a dedicated Maven module with packaging type jar containing the web.xml. Let's call it com.mycompany:common.
Is it somehow possible to do something like this ? :
<webXml>classpath:com/mycompany/common/web.xml</webXml>
Have you tried i.e. you know for sure that it doesn't work? If it did I suppose you'd have to use a leading '/' (/com/...).
And of course, make that file available on the classpath of the
plugin.
That'd be easy then...just add a dependency to com.mycompany:common to make it available in the classpath. Of course it'd have to be available in your Maven repository.
If classpath: doesn't work, I'm really not sure anymore myself, you could use the maven-dependency-plugin to unpack web.xml from the JAR in order to make it available to the maven-war-plugin.
pom.xml
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<executions>
<execution>
<id>unpack-web-xml</id>
<phase>..any phase before packaging..</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.mycompany</groupId>
<artifactId>common</artifactId>
<version>1.0</version>
<outputDirectory>...dir you'll use for the war plugin later...</outputDirectory>
<includes>/com/mycompany/common/web.xml</includes>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>

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