#484 Can't build ProGuardTask for Gradle via makefile

[Doctoror]

cp ../src/proguard/gui/boilerplate.pro ../classes/proguard/gui/boilerplate.pro
cp ../src/proguard/gui/default.pro ../classes/proguard/gui/default.pro
cp ../src/proguard/gui/vtitle.png ../classes/proguard/gui/vtitle.png
cp ../src/proguard/gui/GUIResources.properties ../classes/proguard/gui/GUIResources.properties
cp ../src/proguard/gui/arrow.gif ../classes/proguard/gui/arrow.gif
jar -cfm ../lib/proguardgui.jar ../src/proguard/gui/MANIFEST.MF -C ../classes proguard/gui/
jar -cfm ../lib/retrace.jar ../src/proguard/retrace/MANIFEST.MF -C ../classes proguard/retrace/
javac -nowarn -Xlint:none -classpath /usr/share/apache-ant/lib/ant.jar:/usr/share/java/gradle/lib/plugins/gradle-plugins-1.3.jar:/usr/share/java/gradle/lib/gradle-base-services-1.3.jar:/usr/share/java/gradle/lib/gradle-core-1.3.jar:/usr/share/java/gradle/lib/groovy-all-1.8.6.jar:/usr/local/java/wtk/wtklib/kenv.zip -sourcepath ../src -d ../classes ../src/proguard/ant/ProGuardTask.java
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
cp ../src/proguard/ant/task.properties ../classes/proguard/ant/task.properties
jar -uf ../lib/proguard.jar -C ../classes proguard/ant/
javac -nowarn -Xlint:none -classpath /usr/share/apache-ant/lib/ant.jar:/usr/share/java/gradle/lib/plugins/gradle-plugins-1.3.jar:/usr/share/java/gradle/lib/gradle-base-services-1.3.jar:/usr/share/java/gradle/lib/gradle-core-1.3.jar:/usr/share/java/gradle/lib/groovy-all-1.8.6.jar:/usr/local/java/wtk/wtklib/kenv.zip -sourcepath ../src -d ../classes ../src/proguard/gradle/ProGuardTask.java
../src/proguard/gradle/ProGuardTask.java:24: error: package org.gradle.api does not exist
import org.gradle.api.*;
^
../src/proguard/gradle/ProGuardTask.java:25: error: package org.gradle.api.file does not exist
import org.gradle.api.file.*;
^
../src/proguard/gradle/ProGuardTask.java:26: error: package org.gradle.api.tasks does not exist
import org.gradle.api.tasks.TaskAction;
                           ^
../src/proguard/gradle/ProGuardTask.java:40: error: cannot find symbol
public class ProGuardTask extends DefaultTask
                                  ^
  symbol: class DefaultTask
../src/proguard/gradle/ProGuardTask.java:979: error: cannot find symbol
    private ConfigurableFileCollection resolvedFiles(Object files)
            ^
  symbol:   class ConfigurableFileCollection
  location: class ProGuardTask
../src/proguard/gradle/ProGuardTask.java:1015: error: cannot find symbol
                                      ConfigurableFileCollection fileCollection,
                                      ^
  symbol:   class ConfigurableFileCollection
  location: class ProGuardTask
../src/proguard/gradle/ProGuardTask.java:955: error: cannot find symbol
    @TaskAction
     ^
  symbol:   class TaskAction
  location: class ProGuardTask
../src/proguard/gradle/ProGuardTask.java:971: error: cannot find symbol
        return getProject().file(resolvedString(file));
               ^
  symbol:   method getProject()
  location: class ProGuardTask
../src/proguard/gradle/ProGuardTask.java:982: error: cannot find symbol
        return getProject().files(new Object[] { resolvedString(files) });
               ^
  symbol:   method getProject()
  location: class ProGuardTask
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
9 errors
makefile:95: recipe for target '../classes/proguard/gradle/ProGuardTask.class' failed
make: *** [../classes/proguard/gradle/ProGuardTask.class] Error 1

My system:

OS: ArchLinux x64
jdk7-openjdk 7.u45_2.4.3
make 4.0

This error is present in 4.10 release as well.

[Doctoror]

I just found that the issue exists because makefile wants gradle-1.3 but my version was 1.8. So I needed to update gradle-jars to end with "-1.8", not "-1.3" to fix it.

GRADLE_JARS = $(GRADLE_HOME)/lib/plugins/gradle-plugins-1.8.jar \
          $(GRADLE_HOME)/lib/gradle-base-services-1.8.jar \
          $(GRADLE_HOME)/lib/gradle-core-1.8.jar \
          $(GRADLE_HOME)/lib/groovy-all-1.8.6.jar

I wonder if you can somehow probe the version for auto-replace in makefile or something.

[Eric Lafortune]

I've updated the makefile for ProGuard 4.11 beta7; it now refers to Gradle 1.8. Developers can always change and test these dependencies themselves.