The name of the "proguarded" JAR under target/ is different from the one installed under .m2.

[wheredevel]

Here's the portion of the plugin configuration:

				<plugin>
					<groupId>com.github.wvengen</groupId>
					<artifactId>proguard-maven-plugin</artifactId>
					<version>${proguard-maven-plugin.version}</version>
					<configuration>
						<attach>true</attach>
						<attachArtifactClassifier>obfuscated</attachArtifactClassifier>
					...
					<configuration>
				</plugin>

Here's the portion of the plugin execution:

					<plugin>
						<groupId>com.github.wvengen</groupId>
						<artifactId>proguard-maven-plugin</artifactId>
						<executions>
							<execution>
								<phase>package</phase>
								<configuration>
									<injar>${project.build.finalName}-shaded.jar</injar>
								</configuration>
								<goals>
									<goal>proguard</goal>
								</goals>
							</execution>
						</executions>
					</plugin>

With the above configuration and execution, the resulting JAR name under target/ is:
xxxxxxx-shaded-obfuscated.jar

While the installed JAR (under .m2) name is:
xxxxxxx-obfuscated.jar

The expected behavior is that in both cases the name would be:
xxxxxxx-obfuscated.jar
(as it's based on the ${project.build.finalName} with an addition of attachArtifactClassifier value.)

So, the erroneous behavior is that the classifier is appended to the injar named file, instead of the project main artifact name.

Affected version of the plugin: 2.2.0. (Same happens also with 2.0.14.)