AngleWyrm

That method requires administrator priveleges in order to access system settings, and thus it's not a portable solution. I've got a pathsetup.bat that sets the environment variables within the console that will launch the gradlew install process, which is sufficient to then type 'javac' from the command line and get a usage report. A note from the error log: So somewhere along the lines the flag "-source 1.6" is inserted into the stream.

This is how JDK7 is in my eclipse/jre folder: @if "%DEBUG%"=="" echo off rem Homebrew JDK Installer by AngleWyrm rem Hard-coded for starting pass rem Expectations: set HOME=C:/Users/Public/AngleWyrm/prog set UNZIP="%HOME%/toolbox/7zip/7za.exe" set GRADLE_USER_HOME=%HOME%/projects/artifacts/gradle set JAVA_HOME=%HOME%/eclipse/jre if not exist %JAVA_HOME% do md %JAVA_HOME% set UNPACK="%JAVA_HOME%/bin/unpack200.exe" set PATH=%JAVA_HOME%/bin;%JAVA_HOME%/jre/bin;%PATH% echo Paths set. JAVA_HOME=%JAVA_HOME% rem Remove old jdk installation and extract tools.zip to jdk rem if exist jdk rd jdk /S /Q %UNZIP% x -o%JAVA_HOME% %HOME%/downloads/tools.zip %UNPACK% -r "%JAVA_HOME%/lib/tools.pack" "%JAVA_HOME%/lib/tools.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/charsets.pack" "%JAVA_HOME%/jre/lib/charsets.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/deploy.pack" "%JAVA_HOME%/jre/lib/deploy.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/javaws.pack" "%JAVA_HOME%/jre/lib/javaws.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/jfxrt.pack" "%JAVA_HOME%/jre/lib/jfxrt.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/jsse.pack" "%JAVA_HOME%/jre/lib/jsse.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/plugin.pack" "%JAVA_HOME%/jre/lib/plugin.jar" %UNPACK% -r "%JAVA_HOME%/jre/lib/rt.pack" "%JAVA_HOME%/jre/lib/rt.jar" echo Finished converting *.pack files to *.jar files echo. echo gradlew.bat setupDecompWorkspace eclipse --refresh-dependencies pause [/Code] If you have another way that doesn't involve admin install rights, I'm all ears!

In case it wasn't clear, the .../eclipse/jre folder (JAVA_HOME) is the unzipped & unpacked JDK7. Am I missing something?

Received this error from both available source builds: forge-1.7.10-10.13.4.1492-1.7.10-src -- latest available at time of writing forge-1.7.10-10.13.4.1448-1.7.10-src -- recommended build at time of writing [spoiler=end of log]13:11:30.592 [iNFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :recompMinecraft (Thread[main,5,main]) started. 13:11:30.598 [LIFECYCLE] [class org.gradle.TaskExecutionLogger] :recompMinecraft 13:11:30.599 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Starting to execute task ':recompMinecraft' 13:11:30.614 [DEBUG] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Determining if task ':recompMinecraft' is up-to-date 13:11:31.866 [iNFO] [org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter] Executing task ':recompMinecraft' (up-to-date check took 1.247 secs) due to: No history is available. 13:11:31.871 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter] Executing actions for task ':recompMinecraft'. 13:11:31.878 [iNFO] [org.gradle.api.internal.changedetection.changes.RebuildIncrementalTaskInputs] All input files are considered out-of-date for incremental task ':recompMinecraft'. [The call to compiler was right here, but is clipped due to it's enormous size exceeding the limits of a forum post] 13:11:32.809 [iNFO] [org.gradle.api.internal.tasks.compile.jdk6.Jdk6JavaCompiler] Compiling with JDK Java compiler API. 13:11:32.815 [DEBUG] [org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter] Finished executing task ':recompMinecraft' 13:11:32.820 [LIFECYCLE] [class org.gradle.TaskExecutionLogger] :recompMinecraft FAILED 13:11:32.827 [iNFO] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] :recompMinecraft (Thread[main,5,main]) completed. Took 2.229 secs. 13:11:32.832 [DEBUG] [org.gradle.execution.taskgraph.AbstractTaskPlanExecutor] Task worker [Thread[main,5,main]] finished, busy: 2 mins 3.108 secs, idle: 0.212 secs 13:11:32.841 [ERROR] [org.gradle.BuildExceptionReporter] 13:11:32.847 [ERROR] [org.gradle.BuildExceptionReporter] FAILURE: Build failed with an exception. 13:11:32.853 [ERROR] [org.gradle.BuildExceptionReporter] 13:11:32.857 [ERROR] [org.gradle.BuildExceptionReporter] * What went wrong: 13:11:32.861 [ERROR] [org.gradle.BuildExceptionReporter] Execution failed for task ':recompMinecraft'. 13:11:32.866 [ERROR] [org.gradle.BuildExceptionReporter] > Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory. 13:11:32.872 [ERROR] [org.gradle.BuildExceptionReporter] 13:11:32.876 [ERROR] [org.gradle.BuildExceptionReporter] * Exception is: 13:11:32.880 [ERROR] [org.gradle.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':recompMinecraft'. 13:11:32.884 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:69) 13:11:32.888 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:46) 13:11:32.893 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.PostExecutionAnalysisTaskExecuter.execute(PostExecutionAnalysisTaskExecuter.java:35) 13:11:32.897 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64) 13:11:32.901 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58) 13:11:32.905 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:42) 13:11:32.910 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52) 13:11:32.914 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:53) 13:11:32.917 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43) 13:11:32.921 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.AbstractTask.executeWithoutThrowingTaskFailure(AbstractTask.java:296) 13:11:32.925 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.executeTask(AbstractTaskPlanExecutor.java:79) 13:11:32.929 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.processTask(AbstractTaskPlanExecutor.java:63) 13:11:32.934 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.AbstractTaskPlanExecutor$TaskExecutorWorker.run(AbstractTaskPlanExecutor.java:51) 13:11:32.938 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor.process(DefaultTaskPlanExecutor.java:23) 13:11:32.942 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter.execute(DefaultTaskGraphExecuter.java:86) 13:11:32.947 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.SelectedTaskExecutionAction.execute(SelectedTaskExecutionAction.java:29) 13:11:32.951 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61) 13:11:32.955 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.access$200(DefaultBuildExecuter.java:23) 13:11:32.959 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter$2.proceed(DefaultBuildExecuter.java:67) 13:11:32.968 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DryRunBuildExecutionAction.execute(DryRunBuildExecutionAction.java:32) 13:11:32.972 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:61) 13:11:32.976 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.execution.DefaultBuildExecuter.execute(DefaultBuildExecuter.java:54) 13:11:32.980 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.doBuildStages(DefaultGradleLauncher.java:148) 13:11:32.984 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.doBuild(DefaultGradleLauncher.java:105) 13:11:32.988 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.initialization.DefaultGradleLauncher.run(DefaultGradleLauncher.java:85) 13:11:32.993 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter$DefaultBuildController.run(InProcessBuildActionExecuter.java:81) 13:11:32.996 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:33) 13:11:33.000 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.ExecuteBuildAction.run(ExecuteBuildAction.java:24) 13:11:33.004 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:39) 13:11:33.008 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.exec.InProcessBuildActionExecuter.execute(InProcessBuildActionExecuter.java:29) 13:11:33.013 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.RunBuildAction.run(RunBuildAction.java:50) 13:11:33.017 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.Actions$RunnableActionAdapter.execute(Actions.java:171) 13:11:33.021 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:237) 13:11:33.025 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.CommandLineActionFactory$ParseAndBuildAction.execute(CommandLineActionFactory.java:210) 13:11:33.030 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:35) 13:11:33.034 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24) 13:11:33.038 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:206) 13:11:33.042 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:169) 13:11:33.046 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33) 13:11:33.050 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22) 13:11:33.054 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.Main.doAction(Main.java:33) 13:11:33.058 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45) 13:11:33.062 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:54) 13:11:33.066 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:35) 13:11:33.070 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.launcher.GradleMain.main(GradleMain.java:23) 13:11:33.074 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30) 13:11:33.079 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:127) 13:11:33.085 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:56) 13:11:33.088 [ERROR] [org.gradle.BuildExceptionReporter] Caused by: java.lang.RuntimeException: Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory. 13:11:33.093 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.jdk6.Jdk6JavaCompiler.createCompileTask(Jdk6JavaCompiler.java:57) 13:11:33.097 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.jdk6.Jdk6JavaCompiler.execute(Jdk6JavaCompiler.java:44) 13:11:33.101 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.jdk6.Jdk6JavaCompiler.execute(Jdk6JavaCompiler.java:38) 13:11:33.105 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors(NormalizingJavaCompiler.java:96) 13:11:33.108 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:49) 13:11:33.112 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:35) 13:11:33.116 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.DelegatingJavaCompiler.execute(DelegatingJavaCompiler.java:29) 13:11:33.120 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.DelegatingJavaCompiler.execute(DelegatingJavaCompiler.java:20) 13:11:33.123 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:33) 13:11:33.128 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:24) 13:11:33.133 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:87) 13:11:33.137 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:65) 13:11:33.140 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:53) 13:11:33.144 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:63) 13:11:33.148 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.doExecute(AnnotationProcessingTaskFactory.java:235) 13:11:33.152 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:211) 13:11:33.156 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$IncrementalTaskAction.execute(AnnotationProcessingTaskFactory.java:222) 13:11:33.160 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.project.taskfactory.AnnotationProcessingTaskFactory$StandardTaskAction.execute(AnnotationProcessingTaskFactory.java:200) 13:11:33.164 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:80) 13:11:33.169 [ERROR] [org.gradle.BuildExceptionReporter] at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:61) 13:11:33.173 [ERROR] [org.gradle.BuildExceptionReporter] ... 47 more 13:11:33.178 [ERROR] [org.gradle.BuildExceptionReporter] 13:11:33.182 [LIFECYCLE] [org.gradle.BuildResultLogger] 13:11:33.186 [LIFECYCLE] [org.gradle.BuildResultLogger] BUILD FAILED 13:11:33.190 [LIFECYCLE] [org.gradle.BuildResultLogger] 13:11:33.195 [LIFECYCLE] [org.gradle.BuildResultLogger] Total time: 3 mins 15.971 secs Some things that I noticed: %JAVA_HOME% is reported in the command window as JAVA_HOME=C:/Users/Public/AngleWyrm/prog/eclipse/jre and that folder contains the JDK 7u80 for windows i586 (x32) which works in eclipse. From the log at 13:11:32.809: [iNFO] [org.gradle.api.internal.tasks.compile.jdk6.Jdk6JavaCompiler] Compiling with JDK Java compiler API. It seems to be attempting to use jdk6 compiler, but there's no java 6 installed on my system. My PC has an admin-installed JRE8, and a manually pointed-to (via JAVA_HOME) extracted and unpacked JDK7. Does it seem possible that the compiler call is not using the JAVA_HOME variable throughout? Is there a config file option or setting to force the use of JDK7 instead? Would it help? Link to post on minecraftforum.net