I'm trying to make a fat uber jar that contains all the projects.
If I do "mvn package", I get an uber jar under "blah" project taget folder. (blah project has the main class.)
The uber jar contains all the projects (as folders not jars), but when I run it, it doesn't seem to recognize feature1 & feature2 projects.
parent pom:
<plugins>
<!-- download source code in Eclipse, best practice -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.10</version>
<configuration>
<downloadSources>true</downloadSources>
<downloadJavadocs>false</downloadJavadocs>
</configuration>
</plugin>
<!-- Set a compiler level -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<!-- Maven Shade Plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.1.1</version>
<executions>
<!-- Run shade goal on package phase -->
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<!-- add Main-Class to manifest file -->
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.a.blah.main</mainClass>
</transformer>
</transformers>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
<modules>
<module>blahtask</module>
<module>feature1</module>
<module>feature2</module>
<module>blahmessaging</module>
<module>blah</module>
</modules>
pom for blah
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.39</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.a.blah</groupId>
<artifactId>blahtask</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.a.blah</groupId>
<artifactId>blahmessaging</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.a.fs</groupId>
<artifactId>feature1</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.a.fs</groupId>
<artifactId>feature2</artifactId>
<version>1.0-SNAPSHOT</version>
<scope>compile</scope>
</dependency>
I added dependencies for feature1 & feature2 above so that they are in the uber jar file. Is this wrong?
p.s. blahmessaging, feature1, & feature2 use classes/functions from blahtask.
It's really hard to find maven-shade-plugin examples with multiple projects. Hard to find how their poms files should be and how parent-child should be structured.
It turned out to be service loader issue...
I manually added class names that I'm using for serviceloader in feature1 & feature2 projects.
If you are using serviceloader, here is what I did.
feature1/src/main/resources/META-INF/services/"some super class"
feature2/src/main/resources/META-INF/services/"some super class"
if you open those two with a text editor, there is a sub class name for each that you need for serviceloader. I copied them and appended into the "some super class" file in the jar.
Related
I've been trying to run my Maven Kotlin Ktor project with command line. The project contains the MySQL configuration too. Every time I tried to hit the following command, I got the following error.
Here is my command.
kotlin -cp mysql-connector-java-8.0.30.jar:dev_meet_dev_api.jar MainClassKt
The dev_meet_dev_api.jar file is my project jar and mysql-connector-java-8.0.30 is for MySQL connection with the database. My project is dependent on MySQL connector that's why I added the external dependency for MySQL connector.
As soon I hit the above command on terminal I've got the following error.
Caused by: java.lang.ClassNotFoundException: java.sql.Driver
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:445)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
Edit 1: Added the maven file.
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>spartons.com.devMeetdevApi</groupId>
<artifactId>KtorTesting</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<kotlin.version>1.7.10</kotlin.version>
<ktor.version>2.1.1</ktor.version>
<junit.version>4.12</junit.version>
<serialization.version>1.4.0</serialization.version>
<coroutines.version>1.6.4</coroutines.version>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
<kotlin.compiler.jvmTarget>11</kotlin.compiler.jvmTarget>
<kotlin.code.style>official</kotlin.code.style>
<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
</properties>
<dependencies>
<!-- Kotlin language dependencies -->
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
<version>${kotlin.version}</version>
<scope>runtime</scope>
</dependency>
<!-- Kotlin's coroutines dependency -->
<dependency>
<groupId>org.jetbrains.kotlinx</groupId>
<artifactId>kotlinx-coroutines-core</artifactId>
<version>${coroutines.version}</version>
</dependency>
<!-- Ktor dependencies -->
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-server-core-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-server-jetty-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-server-content-negotiation-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-serialization-kotlinx-json-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-server-status-pages-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<dependency>
<groupId>io.ktor</groupId>
<artifactId>ktor-server-cors-jvm</artifactId>
<version>${ktor.version}</version>
</dependency>
<!-- Kotlin serialization version -->
<dependency>
<groupId>org.jetbrains.kotlinx</groupId>
<artifactId>kotlinx-serialization-json</artifactId>
<version>${serialization.version}</version>
</dependency>
<!-- MySQL connector dependency -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/resources</directory>
</resource>
</resources>
<finalName>dev_meet_dev_api</finalName>
<plugins>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
<configuration>
<compilerPlugins>
<plugin>kotlinx-serialization</plugin>
</compilerPlugins>
<args>
<arg>-opt-in=kotlin.RequiresOptIn</arg>
</args>
</configuration>
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-serialization</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.10.1</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
</executions>
<configuration>
<release>11</release>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.3.0</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
<configuration>
<artifactSet>
<excludes>
<exclude>mysql:mysql-connector-java:jar:</exclude>
</excludes>
</artifactSet>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</plugin>
</plugins>
</build>
</project>
Edit 2: Added the java-11 modules
P.S I'm using Java 11. Projects works fine if I try to run with the IntelliJ.
You can do this directly in Maven! In your pom.xml add the driver as a dependency.
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.30</version>
</dependency>
Then you shade the dependency into the jar
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<artifactSet>
<includes>
<include>mysql:mysql-connector-java</include>
</includes>
</artifactSet>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
Then directly execute the jar. If this does not help may I know which Java version you are using?
Kotlin applications need the Kotlin runtime to run (mainly kotlin-stdlib.jar). It can be included
in the application jar or not.
If the runtime is not included, you must add it to the classpath:
java -cp /path/to/kotlin-stdlib.jar:app.jar MainClassKt
You can also use the kotlin script, which automatically adds it:
kotlin -cp app.jar MainClassKt
In your case, the runtime is included thanks to the maven-shade-plugin, so you can run the app like this:
java -cp mysql-connector-java-8.0.30.jar:dev_meet_dev_api.jar MainClassKt
Possibility 1
It is possible that some dependency that you manually added has a different version of java.sql.Driver.
It is overriding the java.sql.Driver dependency version that your code flow needs.
To debug if this is actually the cause of your problem, you can use IntelliJ maven dependency plugin.
It can show if there is any conflict in dependency causing the needed class to not load.
https://www.jetbrains.com/help/idea/work-with-maven-dependencies.html#maven_dependency_diagram
Also, please note that in my experience, If multiple dependencies are loading different versions of same class, then you may get different results in different setup, since order of class loading may differ. This can result in your code working in IntellijIdea, but not when running from terminal.
Possibility 2
Check if the jdbc driver version is compatible with java and database versions that you are using. Try upgrading or downgrading the jdbc version to see if that resolves issue.
Debug approach 1: if above ways don't fix the issue
Since you say that your code works in Intellij, start your application in debug mode and put a debug point in java.sql.Driver.
See which the library which contains this class and the dependency which contains this library.
That can help you debug the cause of problem.
Debug approach 2: if above ways don't fix the issue
Use remote debugging.
Start your jar application in console with remote debug enabled.
Refer this on steps to do it.
https://www.jetbrains.com/help/idea/tutorial-remote-debug.html#ecd9fef1
Using this, you can find the code flow and the cause of problem for program that runs in console.
I hope that this helps you.
I have a maven project and I would like to produce the jar file with all dependencies.
I use package shade plugin and the command mvn package to produce the jar file.
However, the produced jar file does not consider any of the dependencies that is pom.xml. The produced jar file keep give me exception:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/log4j/Level
Here is the content of pom.xml:
<dependencies>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>myProject-core</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>${project.groupId}</groupId>
<artifactId>myProject-parser</artifactId>
<version>${project.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>info.picocli</groupId>
<artifactId>picocli</artifactId>
<version>${picoli.version}</version>
</dependency>
<dependency>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/log4j/log4j -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.16</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.13.1</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.13.1</version>
</dependency>
</dependencies>
<profiles>
<profile>
<id>client</id>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>${shade.version}</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<finalName>myProject-client-${project.version}</finalName>
<transformers>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>myProject.package.main</mainClass>
</transformer>
<transformer
implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
</transformers>
<filters>
<!-- This is necessary to avoid a java.lang.SecurityException -->
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<configuration>
<archive>
<manifest>
<!-- Jar file entry point -->
<mainClass>myProject.package.main</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
</build>
Where is my mistake?
It is even does not consider <mainClass>myProject.package.main</mainClass> for the main class when I run the jar I have to specify the class name:
java -cp myApp.jar myProject.package.main
I looked over most of the questions and nothing solve my issue.
First of all, there are two plugins that you can use to create fat jars: maven-shade-plugin and maven-assembly-plugin.
The main difference between them is that maven-assembly just builds a jar containing all the dependency, while maven-shade also relocate these dependencies internally so that, if another project is depending on your jar, you won't risk having conflicts on dependencies.
If you don't expect yo use this artifact as a dependency of other projects, you can use maven-assembly-plugin for it. Here is an example of how to use it:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>3.1.1</version>
<configuration>
<finalName>${project.artifactId}</finalName>
<archive>
<manifest>
<mainClass>myProject.package.main</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<appendAssemblyId>false</appendAssemblyId>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
If you really need to shade your dependencies, try to modify the manifest config of the plugin with this, at least it should solve the problem that you-re having with identifying the main class:
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>myProject.package.main</Main-Class>
<X-Compile-Source-JDK>${maven.compiler.source}</X-Compile-Source-JDK>
<X-Compile-Target-JDK>${maven.compiler.target}</X-Compile-Target-JDK>
</manifestEntries>
</transformer>
There are no groupId in the dependencies with org.apache.log4j, you have: org.apache.logging.log4j but its not the same as: org.apache.log4j
I have created executable Jar using Maven dependencies for connecting multiple database at runtime by passing the parameters.
I added dependencies as below:
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>ojdbc7</artifactId>
<version>12.1.0.2</version>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>6.1.7.jre8-preview</version>
</dependency>
In my case, when I ran executable jar it connected successfully to Oracle database but gives No suitable driver not found for SQL server database.
When I changed the order of dependency shown above to SQL server first and Oracle second and built new executable jar and ran it, I could able to connect to SQL server database successfully but this time it gives error No suitable driver not found for Oracle database.
When I compared both the extracted executable jars, it has exactly same structure, numbers of files and size of files and didn't find any single difference. Hence not able to found what could be the problem while building executable jar so that a single jar would work for both databases.
Any suggestion would be really help me to resolve this strange behavior...
Thanks in advance.
The .pom file is as below.
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany.dataload</groupId>
<artifactId>DataLoadUtilities</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>DataLoadUtilities</name>
<description>A utility project that started with fetching table metadata from SQL Server and Oracle</description>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>com.oracle.jdbc</groupId>
<artifactId>ojdbc7</artifactId>
<version>12.1.0.2</version>
</dependency>
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>6.1.7.jre8-preview</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-api</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.3</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.mycompany.dataload.main.TableMetadataGeneratorForHive</mainClass>
</transformer>
</transformers>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>unpack-dependencies</id>
<phase>package</phase>
<goals>
<goal>unpack-dependencies</goal>
</goals>
<configuration>
<excludeScope>system</excludeScope>
<excludes>META-INF/*.SF</excludes>
<excludes>META-INF/*.DSA</excludes>
<excludes>META-INF/*.RSA</excludes>
<excludeGroupIds>junit,org.mockito,org.hamcrest</excludeGroupIds>
<outputDirectory>${project.build.directory}/classes</outputDirectory>
</configuration>
</execution>
</executions></plugin>
</plugins>
</build></project>
You are encountering this problem because of the way you have created your executable jar.
Each of ojdbc7-12.1.0.2.jar and mssql-jdbc-6.1.7.jre8-preview.jar contains a META-INF/services/java.sql.Driver file containing the name of the respective java.sql.Driver implementation classes for each vendor. It seems like you only get the first one that is encountered in the dependency list.
This is described in the javadoc for java.sql.DriverManager.
The Java 8 JAR File Specification - Service Provider provides more information that states that the META-INF/services/java.sql.Driver file:
... should contain a newline-separated list of unique concrete provider-class names
Therefore you can probably configure an AppendingTransformer in your configuration to merge the content of these files during shading.
Something along the lines of
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
<resource>META-INF/services/java.sql.Driver</resource>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
I am using the maven shade plugin to generate a consolidate jar for my project. The jar is generated as expected and when i try to use the jar and run it, i get a
java.lang.SecurityException: Invalid signature file digest for
Manifest main attributes error.
I googled the above error message and many people have suggested to exclude the manifest signatures from the META-INF directory. Thus i have included the step to exclude these files from the directory [i see two files by the name JARSIGN_.RSA and JARSIGN_.SF], but for some strange reason, maven shade plugin is unable to exclude these files from the META-INF directory. Could anyone explain me what i might be doing wrong? My pom.xml is below and the command that i am using to generate the jar is:
mvn clean package shade:shade
pom.xml
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.abc.xyz</groupId>
<artifactId>myjar</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<url>http://maven.apache.org</url>
<properties>
<!-- A few custom properties -->
</properties>
<dependencies>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.3.1</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
<version>18.0</version>
</dependency>
<!-- Other The dependencies are here -->
</dependencies>
<repositories>
<!-- Repository Information -->
</repositories>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- Maven Shade Plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.2</version>
<executions>
<!-- Run shade goal on package phase -->
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<filters>
<filter>
<artifact>*:*</artifact>
<!-- The below statement is not executed by shade plugin -->
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
<minimizeJar>true</minimizeJar>
<artifactSet>
<includes>
<include>com.google.guava:guava</include>
<include>com.google.code.gson:gson</include>
</includes>
</artifactSet>
<transformers>
<!-- add Main-Class to manifest file -->
<transformer
implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<manifestEntries>
<Main-Class>com.abc.xyz.HelloWorld</Main-Class>
</manifestEntries>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
With shade plugin 3.2.1 the following works for me.
<!-- language: lang-xml -->
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.2.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
<configuration>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
On the plugin's doc page (https://maven.apache.org/plugins/maven-shade-plugin/examples/includes-excludes.html) the whole <configuration> block is shown inside the <execution> tag. This does not work. The <configuration> block should be outside the <executions> tag as shown above.
Maybe the configuration syntax for the plugin has changed, but this worked for me in the past with version 1.5 of the shader plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.5</version>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
<resource>META-INF/JARSIGN_.SF</resource>
</transformer>
</transformers>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
I have not tried to use wildcards. But looking at the documentation the following should exclude all .SF files:
<resource>.SF</resource>
See this thread for another example.
I had a similar issue where the Shade plugin apparently did not exclude files from META-INF directory no matter what settings I tried. I was checking it using the following bash commands:
mvn clean install
7za x target/built-jar-6.4.0.jar -aoa -o/tmp/unpacked/
ls /tmp/unpacked/META-INF/
The problem was actually not in the shade plugin itself, but in the way I was unpacking the JAR - the unpacking command overwrites files, but it keeps the old files in place, making me think there was something wrong with my settings.
My Maven project uses an external library as a dependency, com.sk89q.intake:intake, which I'm trying to package into my jar via the maven-shade-plugin. When building the project, the resulting jar does not contain any of the class files of com.sk89q.intake:intake. During the build process, I get this message, but the build continues on and succeeds:
[INFO] --- maven-shade-plugin:2.4.2:shade (default) # EventManagerPlugin
[INFO] No artifact matching filter com.sk89q.intake:intake
Why is this happening? I'm able to download, access, and use the dependency in my project, so there shouldn't be anything wrong with naming of the artifact.
pom.xml
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>deletethis.eventmanager</groupId>
<artifactId>EventManagerPlugin</artifactId>
<version>1.0.0-beta1</version>
<repositories>
<repository>
<id>spigot-repo</id>
<url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
</repository>
<repository>
<id>maven.sk89q.com</id>
<url>http://maven.sk89q.com/repo/</url>
</repository>
</repositories>
<dependencies>
<dependency>
<groupId>org.spigotmc</groupId>
<artifactId>spigot-api</artifactId>
<version>1.8.8-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.bukkit</groupId>
<artifactId>bukkit</artifactId>
<version>1.8.8-R0.1-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.sk89q.intake</groupId>
<artifactId>intake</artifactId>
<version>4.2-SNAPSHOT</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>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>2.5</version>
<configuration>
<archive>
<manifestEntries>
<Built-By>deletethis</Built-By>
</manifestEntries>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>2.4.2</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<filters>
<filter>
<artifact>com.sk89q.intake:intake</artifact>
<includes>
<include>com/sk89q/intake/**</include>
</includes>
</filter>
</filters>
<relocations>
<relocation>
<pattern>com.sk89q.intake</pattern>
<shadedPattern>deletethis.eventmanager.lib.com.sk89q.intake</shadedPattern>
</relocation>
</relocations>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
As you can see, I am including the com.sk89q.intake:intake artifact. I have looked through the maven-shade-plugin documentation and don't see what I'm doing wrong. The naming is consistent with everything I have found online; that is, groupId:artifactId.
I have also tried building without the <relocation> class relocation tags to see if they were interfering.
It may be useful to know that I'm using M2Eclipse and building with the clean install goals.
The problem is that your are declaring the com.sk89q.intake:intake dependency with the provided scope.
Provided dependency are expected to be provided by the container at runtime so the maven-shade-plugin will not add it to your shaded jar. As such, you need to remove the provided scope from the dependency declaration:
<dependency>
<groupId>com.sk89q.intake</groupId>
<artifactId>intake</artifactId>
<version>4.2-SNAPSHOT</version>
</dependency>
Relevant build log after this change:
[INFO] --- maven-shade-plugin:2.4.2:shade (default) # test ---
[INFO] Including com.sk89q.intake:intake:jar:4.2-SNAPSHOT in the shaded jar.
[INFO] Including com.google.guava:guava:jar:18.0 in the shaded jar.
[INFO] Including com.google.code.findbugs:jsr305:jar:3.0.0 in the shaded jar.