maven create executable jar package with spring boot parent

Question

I need to make an executable jar package out of my application.

Here's my 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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.nws</groupId>
    <artifactId>rest-signer</artifactId>
    <version>0.1</version>
    <name>rest-signer</name>
    <description>rest wrapper for signing lib</description>

<properties>
    <java.version>1.8</java.version>
</properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-jersey</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!--<dependency>-->
        <!--<groupId>org.glassfish.jersey.media</groupId>-->
        <!--<artifactId>jersey-media-multipart</artifactId>-->
        <!--<scope>compile</scope>-->
    <!--</dependency>-->
</dependencies>

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <configuration>
                <archive>
                    <compress>false</compress>
                    <manifest>
                        <addClasspath>true</addClasspath>
                        <useUniqueVersions>false</useUniqueVersions>
                        <classpathPrefix>lib/</classpathPrefix>
                        <mainClass>com.nws.restsigner.RestSignerApplication</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>

        <plugin>
            <groupId>com.googlecode.addjars-maven-plugin</groupId>
            <artifactId>addjars-maven-plugin</artifactId>
            <version>1.0.5</version>
            <executions>
                <execution>
                    <goals>
                        <goal>add-jars</goal>
                    </goals>
                    <configuration>
                        <resources>
                            <resource>
                                <directory>${basedir}/lib</directory>
                            </resource>
                        </resources>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <plugin>
            <artifactId>maven-dependency-plugin</artifactId>
            <executions>
                <execution>
                    <id>copy-dependencies</id>
                    <phase>prepare-package</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>${project.build.directory}/lib</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <version>3.2.1</version>
            <configuration>
                <!-- put your configurations here -->
                <minimizeJar>false</minimizeJar>
                <filters>
                    <filter>
                        <artifact>*:*</artifact>
                        <excludes>
                            <exclude>META-INF/*.SF</exclude>
                            <exclude>META-INF/*.DSA</exclude>
                            <exclude>META-INF/*.RSA</exclude>
                        </excludes>
                    </filter>
                </filters>
            </configuration>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

I build package with: mvn clean package -DskipTests=true and run it by java -jar i get this:

 Exception in thread "main" java.lang.IllegalStateException: Failed to get nested archive for entry BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:108)
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchives(JarFileArchive.java:86)
        at org.springframework.boot.loader.ExecutableArchiveLauncher.getClassPathArchives(ExecutableArchiveLauncher.java:70)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:49)
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
    Caused by: java.io.IOException: Unable to open nested jar file 'BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar'
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:256)
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:241)
        at org.springframework.boot.loader.archive.JarFileArchive.getNestedArchive(JarFileArchive.java:103)
        ... 4 more
    Caused by: java.lang.IllegalStateException: Unable to open nested entry 'BOOT-INF/lib/spring-boot-starter-jersey-2.1.2.RELEASE.jar'. It has been compressed and nested jar files must be stored without compression. Please check the mechanism used to create your executable jar file
        at org.springframework.boot.loader.jar.JarFile.createJarFileFromFileEntry(JarFile.java:284)
        at org.springframework.boot.loader.jar.JarFile.createJarFileFromEntry(JarFile.java:264)
        at org.springframework.boot.loader.jar.JarFile.getNestedJarFile(JarFile.java:252)
        ... 6 more

mvn --version Apache Maven 3.6.0 (NON-CANONICAL_2018-11-06T03:14:22+01:00_root; 2018-11-06T03:14:22+01:00) Maven home: /opt/maven Java version: 1.8.0_192, vendor: Oracle Corporation, runtime: /usr/lib/jvm/java-8-openjdk/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux", version: "4.20.0-arch1-1-arch", arch: "amd64", family: "unix"

so what should I change in my packaging to be able to run this finally?

Oleksii Zghurskyi · Accepted Answer · 2019-02-08 11:48:32Z

3

spring-boot-maven-plugin creates executable jar by default. So, you don't have to create it manually.

Basically, it's enough to just have this in the pom.xml:

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.1.2.RELEASE</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

If your usage require some custom configuration (e.g. setting main class), here you can find good documentation.

edited Feb 8, 2019 at 11:48

answered Feb 8, 2019 at 11:42

Oleksii Zghurskyi

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8 Comments

Gimby Over a year ago

Indeed, I suspect some of the other plugins (addjars, shade) are causing the problem.

greengold Over a year ago

I need those plugins in order to include my custom lib in project. really I have found no other way. without that it won't even compile

greengold Over a year ago

and i have maven-jar-plugin in place just to be able to set compress=false but it's the same without it through. .original build runs well

Oleksii Zghurskyi Over a year ago

Usually, if you have some custom library you can package it and publish to maven repository (e.g. local or nexus). Then just add that library to the dependencies section.

Oleksii Zghurskyi Over a year ago

Also, another variant: you can get rid off spring boot parent, and use bom. Then get rid of spring-boot-maven-plugin and package your project using other plugins.

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