I am trying to use ProGuard in my Gradle script to obfuscate my code everytime I build, however I am running into the following error:
FAILURE: Build failed with an exception.
* What went wrong:
Neither path nor baseDir may be null or empty string. path='null' basedir='/Users/hassansyyid/Workspace/Random/Launcher/launcher'
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 1.888 secs
Here is my build.gradle:
import proguard.gradle.ProGuardTask
apply plugin: 'com.github.johnrengelman.shadow'
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'net.sf.proguard:proguard-gradle:5.3.1'
}
}
jar {
manifest {
attributes("Main-Class": "com.skcraft.launcher.Launcher")
}
}
dependencies {
compile 'org.projectlombok:lombok:1.12.2'
compile 'com.fasterxml.jackson.core:jackson-databind:2.3.0'
compile 'commons-lang:commons-lang:2.6'
compile 'commons-io:commons-io:1.2'
compile 'com.google.guava:guava:15.0'
compile 'com.beust:jcommander:1.32'
compile 'com.miglayout:miglayout:3.7.4'
compile 'com.google.code.findbugs:jsr305:3.0.0'
}
processResources {
filesMatching('**/*.properties') {
filter {
it.replace('${project.version}', project.version)
}
}
}
task obfuscate(type: proguard.gradle.ProGuardTask) {
configuration 'proguard.txt'
injars "${buildDir}/libs/launcher-${version}.jar"
outjars "${buildDir}/libs/launcher-${version}-obf.jar"
libraryjars configurations.compile.find { it.name.startsWith("lombok") }
libraryjars configurations.compile.find { it.name.startsWith("jackson-databind") }
libraryjars configurations.compile.find { it.name.startsWith("jackson-core") }
libraryjars configurations.compile.find { it.name.startsWith("jackson-annotation") }
libraryjars configurations.compile.find { it.name.startsWith("crypto") }
libraryjars configurations.compile.find { it.name.startsWith("guava") }
libraryjars configurations.compile.find { it.name.startsWith("jcommander") }
libraryjars configurations.compile.find { it.name.startsWith("miglayout") }
libraryjars configurations.compile.find { it.name.startsWith("jsr305") }
libraryjars configurations.compile.find { it.name.startsWith("commons-io") }
libraryjars configurations.compile.find { it.name.startsWith("commons-lang") }
}
shadowJar {
dependencies {
exclude(dependency('org.projectlombok:lombok'))
}
}
build.dependsOn(shadowJar)
build.dependsOn(obfuscate)
The only information I figured out about the issue is that it is related to the obfuscate
task. I confirmed this by commenting out build.dependsOn(obfuscate)
and the build was successful.
I looked up the error but was unable to find any useful information. Also, I am running Gradle 3.1
, the latest Gradle build.
My proguard.txt:
# Include java runtime classes
-libraryjars <java.home>/lib/rt.jar
# Output a source map file
-printmapping proguard.map
# Keep filenames and line numbers
-keepattributes SourceFile, LineNumberTable
# Disable certain proguard optimizations which remove stackframes (same as Android defaults)
-optimizations !method/inlining/*
-keep public class * {
public protected *;
}
-keepclassmembernames class * {
java.lang.Class class$(java.lang.String);
java.lang.Class class$(java.lang.String, boolean);
}
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
Thanks in advance for any help!
The problem seems to be the way you declare the library jars in the ProGuard task. According to the documentation at the ProGuard homepage one needs to specify a file collection for the libraryjars
setting.
Class paths are specified as Gradle file collections, which means they can be specified as simple strings, with files(Object), etc.
I updated your gradle file and was able to successfully run the build:
import proguard.gradle.ProGuardTask
apply plugin: 'com.github.johnrengelman.shadow'
apply plugin: 'java'
buildscript {
repositories {
mavenCentral()
jcenter()
}
dependencies {
classpath group: 'net.sf.proguard', name: 'proguard-gradle', version: '5.3.1'
classpath group: 'com.github.jengelman.gradle.plugins', name: 'shadow', version: '1.2.4'
}
}
repositories {
mavenCentral()
jcenter()
}
jar {
manifest { attributes("Main-Class": "com.skcraft.launcher.Launcher") }
}
dependencies {
compile 'org.projectlombok:lombok:1.12.2'
compile 'com.fasterxml.jackson.core:jackson-databind:2.3.0'
compile 'commons-lang:commons-lang:2.6'
compile 'commons-io:commons-io:1.2'
compile 'com.google.guava:guava:15.0'
compile 'com.beust:jcommander:1.32'
compile 'com.miglayout:miglayout:3.7.4'
compile 'com.google.code.findbugs:jsr305:3.0.0'
}
processResources {
filesMatching('**/*.properties') {
filter {
it.replace('${project.version}', project.version)
}
}
}
task obfuscate(type: proguard.gradle.ProGuardTask) {
configuration 'proguard.txt'
injars jar
outjars "${buildDir}/libs/launcher-${version}-obf.jar"
libraryjars files(configurations.compile.collect())
}
shadowJar {
dependencies {
exclude(dependency('org.projectlombok:lombok'))
}
}
build.dependsOn(shadowJar)
build.dependsOn(obfuscate)
task wrapper(type: Wrapper) { gradleVersion = "3.1" }
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