maven plugin with vertx giving build failed NoSuchMethodError

[kashifJawed90]

I'm using maven rxjava vert.x project, i need to obfuscate my code

pom.xml looks like:

`


io.reactiverse
vertx-maven-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}/libs</directory>
							</resource>
						</resources>
					</configuration>
				</execution>
			</executions>
		</plugin>
			<plugin>
						<groupId>com.github.wvengen</groupId>
						<artifactId>proguard-maven-plugin</artifactId>
						<version>2.5.1</version>
						<executions>
							<execution>
								<phase>package</phase>
								<goals>
									<goal>proguard</goal>
								</goals>
							</execution>
						</executions>

						<configuration>
							<proguardVersion>${proguard.version}</proguardVersion>
							<injar>${project.build.finalName}.jar</injar>
							<outjar>${project.build.finalName}.jar</outjar>
							<obfuscate>true</obfuscate>
							<options>
								<option>-dontshrink</option>
								<option>-dontoptimize</option>

								<option>-adaptclassstrings</option>

								<option>-keepattributes
									Exceptions,
									InnerClasses,
									Signature,
									Deprecated,
									SourceFile,
									LineNumberTable,
									*Annotation*,
									EnclosingMethod
								</option>

								<option>-keepnames interface **</option>

								<option>-keepparameternames</option>

								<option>-keep
									class com.waylau.proguard.ProguardMavenPluginSpringBootExampleApplication {
									public static
									void main(java.lang.String[]);
									}
								</option>

								<option>-ignorewarnings</option>

								<!-- <option>-keep class com.waylau.proguard.service { *; }</option> -->

								<option>-keep interface * extends * { *; }</option>

								<option>-keep class com.fasterxml.jackson.** { *; }</option>
								<option>-keep class org.json.JSONObject.** {**
									put(java.lang.String,java.util.Map);}</option>
								<option>-keepclassmembers class * {
									@org.springframework.context.annotation.Bean *;
									@org.springframework.beans.factory.annotation.Autowired *;
									@org.springframework.beans.factory.annotation.Value *;
									}

								</option>

								<option>-dontwarn com.fasterxml.jackson.databind.**</option>
								<option>-dontwarn com.fasterxml.jackson.**</option>

							</options>
							<injarNotExistsSkip>true</injarNotExistsSkip>
							<libs>
								<!--<lib>${java.home}/lib/rt.jar</lib> -->
							</libs>

						</configuration>
						<dependencies>
							<dependency>
								<groupId>com.guardsquare</groupId>
								<artifactId>proguard-base</artifactId>
								<version>${proguard.version}</version>
							</dependency>
						</dependencies>
					</plugin>
	</plugins>
</build>`

here is the error

[proguard] ProGuard, version 7.3.2 [proguard] Exception in thread "main" java.lang.NoSuchMethodError: proguard.io.ClassReader.<init>(ZZZZZLproguard/classfile/util/WarningPrinter;Lproguard/classfile/visitor/ClassVisitor;)V [proguard] at proguard.InputReader.execute(InputReader.java:93) [proguard] at proguard.pass.PassRunner.run(PassRunner.java:24) [proguard] at proguard.ProGuard.readInput(ProGuard.java:333) [proguard] at proguard.ProGuard.execute(ProGuard.java:124) [proguard] at proguard.ProGuard.main(ProGuard.java:651) [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 5.028 s [INFO] Finished at: 2023-05-05T20:28:13+05:00 [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal com.github.wvengen:proguard-maven-plugin:2.5.1:proguard (default) on project sparkplug-processor: Obfuscation failed (result=1) -> [Help 1]

can anyone help?

[lasselindqvist]

Try to also add proguard-core dependency to the plugin dependencies. Now you only seem to have proguard-base.

[liamsharp]

I was having the name issue @kashifJawed90 the suggestion from @lasselindqvist did the trick for me:

        <dependency>
          <groupId>com.guardsquare</groupId>
          <artifactId>proguard-core</artifactId>
          <version>9.0.8</version>
          <scope>runtime</scope>
        </dependency>