/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java
-Dapple.awt.UIElement=true
-Xmx2048m
-Dorg.jboss.logging.provider=jdk
-Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.JavaUtilLog
"-javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=54880:/Applications/IntelliJ IDEA.app/Contents/bin"
-Dfile.encoding=UTF-8
-classpath "VERY:BIG:CLASSPATH"
com.google.gwt.dev.DevMode -superDevMode -style PRETTY -war /Users/username/Library/Caches/IntelliJIdea2017.1/gwt/project.5b9c19f7/Project-gwt.9c4fbf78/run/www -remoteUI 7906:IntelliJIdea com.example.gwt.ProjectEntryPoint com.example.gwt.pages.Pages com.example.gwt.login.LoginPage com.example.gwt.admin.AdminPage
Running CodeServer with parameters: [-noprecompile, -port, 9876, -sourceLevel, 1.8, -bindAddress, 127.0.0.1, -launcherDir, /Users/username/Library/Caches/IntelliJIdea2017.1/gwt/project.5b9c19f7/Project-gwt.9c4fbf78/run/www, -logLevel, INFO, -style, PRETTY, com.example.gwt.ProjectEntryPoint, com.example.gwt.pages.Pages, com.example.gwt.login.LoginPage, com.example.gwt.admin.AdminPage]
Super Dev Mode starting up
workDir: /var/folders/pd/1gzkcy4d4md1hcrwmjjbzqrc0000gn/T/gwt-codeserver-7810232587123559115.tmp
Jul 21, 2017 4:09:24 PM org.eclipse.jetty.util.log.JavaUtilLog info
INFO: Logging initialized @3481ms
Loading Java files in com.example.gwt.ProjectEntryPoint.
Module setup completed in 49903 ms
Loading Java files in com.example.gwt.pages.Pages.
Module setup completed in 2964 ms
Loading Java files in com.example.gwt.login.LoginPage.
Module setup completed in 2350 ms
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:717)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:950)
at java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1587)
at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:334)
at java.util.concurrent.ScheduledThreadPoolExecutor.scheduleAtFixedRate(ScheduledThreadPoolExecutor.java:573)
at java.util.concurrent.Executors$DelegatedScheduledExecutorService.scheduleAtFixedRate(Executors.java:735)
at sun.nio.fs.PollingWatchService$PollingWatchKey.enable(PollingWatchService.java:290)
at sun.nio.fs.PollingWatchService.doPrivilegedRegister(PollingWatchService.java:172)
at sun.nio.fs.PollingWatchService.access$000(PollingWatchService.java:45)
at sun.nio.fs.PollingWatchService$2.run(PollingWatchService.java:128)
at sun.nio.fs.PollingWatchService$2.run(PollingWatchService.java:125)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.fs.PollingWatchService.register(PollingWatchService.java:124)
at sun.nio.fs.UnixPath.register(UnixPath.java:897)
at sun.nio.fs.AbstractPath.register(AbstractPath.java:104)
at com.google.gwt.dev.resource.impl.ResourceAccumulator.onNewDirectory(ResourceAccumulator.java:163)
at com.google.gwt.dev.resource.impl.ResourceAccumulator.fullRefresh(ResourceAccumulator.java:91)
at com.google.gwt.dev.resource.impl.ResourceAccumulator.refreshResources(ResourceAccumulator.java:69)
at com.google.gwt.dev.resource.impl.ResourceAccumulatorManager.getResources(ResourceAccumulatorManager.java:113)
at com.google.gwt.dev.resource.impl.DirectoryClassPathEntry.findApplicableResources(DirectoryClassPathEntry.java:49)
at com.google.gwt.dev.resource.impl.ResourceOracleImpl.scanResources(ResourceOracleImpl.java:263)
at com.google.gwt.dev.cfg.ModuleDef.getBuildResourceOracle(ModuleDef.java:405)
at com.google.gwt.dev.CompilerContext$Builder.initializeResourceOracles(CompilerContext.java:101)
at com.google.gwt.dev.CompilerContext$Builder.build(CompilerContext.java:48)
at com.google.gwt.dev.codeserver.Recompiler.loadModule(Recompiler.java:447)
at com.google.gwt.dev.codeserver.Recompiler.initWithoutPrecompile(Recompiler.java:204)
at com.google.gwt.dev.codeserver.Outbox.maybePrecompile(Outbox.java:89)
at com.google.gwt.dev.codeserver.Outbox.<init>(Outbox.java:61)
at com.google.gwt.dev.codeserver.CodeServer.makeOutboxTable(CodeServer.java:192)
at com.google.gwt.dev.codeserver.CodeServer.start(CodeServer.java:151)
at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:104)
at com.google.gwt.dev.codeserver.CodeServer.main(CodeServer.java:55)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.gwt.dev.shell.SuperDevListener.runCodeServer(SuperDevListener.java:112)
at com.google.gwt.dev.shell.SuperDevListener.start(SuperDevListener.java:91)
at com.google.gwt.dev.DevMode.ensureCodeServerListener(DevMode.java:666)
at com.google.gwt.dev.DevModeBase.doStartup(DevModeBase.java:810)
at com.google.gwt.dev.DevMode.doStartup(DevMode.java:551)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:913)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:706)
at com.google.gwt.dev.DevMode.main(DevMode.java:432)
During the compilation process I can see (in Activity Monitor) that the amount of threads for DevMode process raises up to 2K and then the error occurs. As far as I can see, the default limit of threads per process on MacOS ("sysctl kern.num_taskthreads") is 2048 which means that I hit it. Changing Xmx limit (obviously) doesn't solve the problem.
Unknown argument: -localWorkers
Google Web Toolkit 2.8.1
DevMode [-[no]startServer] [-port port-number | "auto"] [-logdir directory] [-logLevel (ERROR|WARN|INFO|TRACE|DEBUG|SPAM|ALL)] [-gen dir] [-bindAddress host-name-or-address] [-codeServerPort port-number | "auto"] [-[no]superDevMode] [-server servletContainerLauncher[:args]] [-startupUrl url] [-war dir] [-deploy dir] [-extra dir] [-modulePathPrefix ] [-workDir dir] [-XmethodNameDisplayMode (NONE|ONLY_METHOD_NAME|ABBREVIATED|FULL)] [-sourceLevel [auto, 1.8]] [-[no]generateJsInteropExports] [-includeJsInteropExports/excludeJsInteropExports regex] [-[no]incremental] [-style (DETAILED|OBFUSCATED|PRETTY)] [-[no]failOnError] [-setProperty name=value,value...] module[s]
where
-[no]startServer Starts a servlet container serving the directory specified by the -war flag. (defaults to ON)
-port Specifies the TCP port for the embedded web server (defaults to 8888)
-logdir Logs to a file in the given directory, as well as graphically
-logLevel The level of logging detail: ERROR, WARN, INFO, TRACE, DEBUG, SPAM or ALL (defaults to INFO)
-gen Debugging: causes normally-transient generated types to be saved in the specified director
-bindAddress Specifies the bind address for the code server and web server (defaults to 127.0.0.1)
-codeServerPort Specifies the TCP port for the code server (defaults to 9997 for classic Dev Mode or 9876 for Super Dev Mode)
-[no]superDevMode Runs Super Dev Mode instead of classic Development Mode. (defaults to ON)
-server Specify a different embedded web server to run (must implement ServletContainerLauncher)
-startupUrl Automatically launches the specified URL
-war The directory into which deployable output files will be written (defaults to 'war')
-deploy The directory into which deployable but not servable output files will be written (defaults to 'WEB-INF/deploy' under the -war directory/jar, and may be the same as the -extra directory/jar
-extra The directory into which extra files, not intended for deployment, will be written
-modulePathPrefix The subdirectory inside the war dir where DevMode will create module directories. (defaults empty for top level)
-workDir The compiler's working directory for internal use (must be writeable; defaults to a system temp dir)
-XmethodNameDisplayMode EXPERIMENTAL: Specifies method display name mode for chrome devtools: NONE, ONLY_METHOD_NAME, ABBREVIATED or FULL (defaults to NONE)
-sourceLevel Specifies Java source level (defaults to 1.8)
-[no]generateJsInteropExports Generate exports for JsInterop purposes. If no -includeJsInteropExport/-excludeJsInteropExport provided, generates all exports. (defaults to OFF)
-includeJsInteropExports/excludeJsInteropExports Include/exclude members and classes while generating JsInterop exorts. Flag could be set multiple times to expand the pattern. (The flag has only effect if exporting is enabled via -generateJsInteropExports)
-[no]incremental Compiles faster by reusing data from the previous compile. (defaults to ON)
-style Script output style: DETAILED, OBFUSCATED or PRETTY (defaults to OBFUSCATED)
-[no]failOnError Fail compilation if any input file contains an error. (defaults to OFF)
-setProperty Set the values of a property in the form of propertyName=value1[,value2...].
and
module[s] Specifies the name(s) of the module(s) to host
Process finished with exit code 255
I can try to find a way to increase the amount of threads per process but that is obviously a wrong solution. So, does anyone have an idea why "-localWorkers" option isn't available or what else can be done to decrease the amount of gwt threads?
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