maven-shade-plugin - Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer

Question

I copied configuration of maven shade plugin straight from apache maven documentation https://maven.apache.org/plugins/maven-shade-plugin/examples/resource-transformers.html

This is my current set up:

      <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-shade-plugin</artifactId>
    <version>3.1.0</version>
    <executions>
      <execution>
        <goals>
          <goal>shade</goal>
        </goals>
        <configuration>
          <transformers>
            <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
              <manifestEntries>
                <Main-Class>com.my.app.MainClass</Main-Class>
                <X-Compile-Source-JDK>1.8</X-Compile-Source-JDK>
                <X-Compile-Target-JDK>1.8</X-Compile-Target-JDK>
              </manifestEntries>
            </transformer>
            <transformer implementation="org.apache.maven.plugins.shade.resource.DontIncludeResourceTransformer">
                <resource>.properties</resource>
            </transformer>
            <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                <resource>META-INF/spring.handlers</resource>
            </transformer>
            <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                <resource>META-INF/spring.schemas</resource>
            </transformer>
            <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                <resource>META-INF/spring.tooling</resource>
            </transformer>
            <transformer implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                <resource>META-INF/spring.factories</resource>
            </transformer>              
          </transformers>
        </configuration>
      </execution>
    </executions>
  </plugin>

And I'm getting following error:

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:3.1.0:shade (default) on project cpms-batch: Unable to parse configuration of mojo org.apache.maven.plugins:maven-shade-plugin:3.1.0:shade for parameter resource: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-shade-plugin:3.1.0:shade (default) on project cpms-batch: Unable to parse configuration of mojo org.apache.maven.plugins:maven-shade-plugin:3.1.0:shade for parameter resource: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212) 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:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288) at org.apache.maven.cli.MavenCli.main(MavenCli.java:199) 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:498) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.maven.plugin.PluginConfigurationException: Unable to parse configuration of mojo org.apache.maven.plugins:maven-shade-plugin:3.1.0:shade for parameter resource: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer at org.apache.maven.plugin.internal.DefaultMavenPluginManager.populatePluginFields(DefaultMavenPluginManager.java:662) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getConfiguredMojo(DefaultMavenPluginManager.java:594) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:121) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207) ... 20 more Caused by: org.codehaus.plexus.component.configurator.ComponentConfigurationException: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer at org.eclipse.sisu.plexus.CompositeBeanHelper.setProperty(CompositeBeanHelper.java:252) at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:101) at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.fromConfiguration(ObjectWithFieldsConverter.java:57) at org.codehaus.plexus.component.configurator.converters.composite.AbstractCollectionConverter.fromChildren(AbstractCollectionConverter.java:54) at org.codehaus.plexus.component.configurator.converters.composite.ArrayConverter.fromConfiguration(ArrayConverter.java:52) at org.eclipse.sisu.plexus.CompositeBeanHelper.convertProperty(CompositeBeanHelper.java:273) at org.eclipse.sisu.plexus.CompositeBeanHelper.setProperty(CompositeBeanHelper.java:210) at org.codehaus.plexus.component.configurator.converters.composite.ObjectWithFieldsConverter.processConfiguration(ObjectWithFieldsConverter.java:101) at org.codehaus.plexus.component.configurator.BasicComponentConfigurator.configureComponent(BasicComponentConfigurator.java:34) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.populatePluginFields(DefaultMavenPluginManager.java:632) ... 23 more [ERROR]

I've seen multiple questions regarding that error without the answer: shade for parameter resource: Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer

Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer

Was anyone able to resolve it or found the reason?

Spring Boot does not require the Maven Shade Plugin: https://stackoverflow.com/a/43613830/3810038 — John Red, Apr 17 '20 at 06:31

score 29 · Accepted Answer · answered Mar 11 '18 at 17:36

This post resolved my issue: https://github.com/spring-projects/spring-boot/issues/384

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <transformers>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                <resource>META-INF/spring.handlers</resource>
                            </transformer>
                            <transformer
                                implementation="org.springframework.boot.maven.PropertiesMergingResourceTransformer">
                                <resource>META-INF/spring.factories</resource>
                            </transformer>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                                <resource>META-INF/spring.schemas</resource>
                            </transformer>
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ServicesResourceTransformer" />
                            <transformer
                                implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                <mainClass>${start-class}</mainClass>
                            </transformer>
                        </transformers>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

It would be great to have an explanation. The github post is old and explains nothing. Having said that, this solution did fix my problem. — markthegrea, Apr 09 '20 at 18:41

score 9 · Answer 2 · edited Oct 30 '22 at 10:24

9

Spring Boot has its own maven-shade-plugin config. Add this property to your pom.xml:

<properties>
  <start-class>com.lionmint.core.test.integration.apns.mock.MockAPNSServer</start-class>
</properties>

edited Oct 30 '22 at 10:24

Frans Oosterhof

333
1
8

answered Apr 05 '18 at 08:06

Lukaesch

141
1
6

Ing. Christhian Lugo Govea · Answer 3 · 2023-07-07T18:57:53.237

It's going to sound stupid but you need add an id and a phase to your shade plugin configuration (I don't know why but it works)

<executions>
  <execution>
    <id>shade-jar-with-dependencies</id>
    <phase>package</phase>
    <goals>
      <goal>shade</goal>
    </goals>
    <configuration>
      <transformers>
        <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
          <manifestEntries>
            <Main-Class>com.my.app.MainClass</Main-Class>
          </manifestEntries>
        </transformer>
      </transformers>
    </configuration>
  </execution>
</executions>

Thanks buddy, no idea why the Transformers documentation doesn't include this in their examples. — Adam D., Aug 05 '23 at 16:00

maven-shade-plugin - Cannot find 'resource' in class org.apache.maven.plugins.shade.resource.ManifestResourceTransformer

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