build.properties help?

Added this to my build.gradle to try and help with automation, as gradle closes the running bat file upon finishing for some reason. I tried taking the "Read build.properties" thing from github.com/Vazkii/Botania yet it doesn't work. No idea what's wrong with it, something about the ConfigSlurper class not found. Any help is appreciated.

[spoiler=gradle setupDecompWorkspace eclipse --stacktrace]

C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8>gradle setupDecompWorkspace

FAILURE: Build failed with an exception.

* Where:

Build file 'C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8\build.gradle' line: 84

* What went wrong:

A problem occurred evaluating root project 'Random Utilities 1.8'.

> [Ljava/util/HashMap$Entry;

* 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: 13.808 secs

C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8>gradle setupDecompWorkspace --stacktrace

FAILURE: Build failed with an exception.

* Where:

Build file 'C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8\build.gradle' line: 84

* What went wrong:

A problem occurred evaluating root project 'Random Utilities 1.8'.

> [Ljava/util/HashMap$Entry;

* Try:

Run with --info or --debug option to get more log output.

* Exception is:

org.gradle.api.GradleScriptException: A problem occurred evaluating root project 'Random Utilities 1.8'.

        at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:54)

        at org.gradle.configuration.DefaultScriptPluginFactory$ScriptPluginImpl.apply(DefaultScriptPluginFactory.java:177)

        at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:38)

        at org.gradle.configuration.project.BuildScriptProcessor.execute(BuildScriptProcessor.java:25)

        at org.gradle.configuration.project.ConfigureActionsProjectEvaluator.evaluate(ConfigureActionsProjectEvaluator.java:34)

        at org.gradle.configuration.project.LifecycleProjectEvaluator.evaluate(LifecycleProjectEvaluator.java:55)

        at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:507)

        at org.gradle.api.internal.project.AbstractProject.evaluate(AbstractProject.java:82)

        at org.gradle.configuration.DefaultBuildConfigurer.configure(DefaultBuildConfigurer.java:31)

        at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:142)

        at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:113)

        at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:81)

        at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:64)

        at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33)

        at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24)

        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:35)

        at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:26)

        at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50)

        at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:171)

        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:201)

        at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:174)

        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:170)

        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:139)

        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)

        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)

        at org.gradle.launcher.Main.doAction(Main.java:46)

        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)

        at org.gradle.launcher.Main.main(Main.java:37)

        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:50)

        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:32)

        at org.gradle.launcher.GradleMain.main(GradleMain.java:23)

Caused by: java.lang.NoClassDefFoundError: [Ljava/util/HashMap$Entry;

        at build_5g0h7l23029l9ut7udrdkibf4s$_parseConfig_closure6.doCall(C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8\build.gradle:84)

        at build_5g0h7l23029l9ut7udrdkibf4s.parseConfig(C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8\build.gradle:81)

        at build_5g0h7l23029l9ut7udrdkibf4s$parseConfig.callCurrent(Unknown Source)

        at build_5g0h7l23029l9ut7udrdkibf4s.run(C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8\build.gradle:25)

        at org.gradle.groovy.scripts.internal.DefaultScriptRunnerFactory$ScriptRunnerImpl.run(DefaultScriptRunnerFactory.java:52)

        ... 30 more

Caused by: java.lang.ClassNotFoundException: java.util.HashMap$Entry

        ... 35 more

BUILD FAILED

Total time: 13.27 secs

C:\Users\Mitch\Central Storage\eclipseworkspace\Random Utilities 1.8>

task relaunchBat(type: Exec) {
workingDir './'
commandLine 'cmd', '', 'SyncProperties.bat'
standardOutput = new ByteArrayOutputStream()

ext.output = {
	return standardOutput.toString()
}
}

def parseConfig(File config) {
    config.withReader {
        def prop = new Properties()
        prop.load(it)
        return (new ConfigSlurper().parse(prop)) -- Line 84
    }
}

defaultTasks 'relaunchBat'