If you use 'start', the Windows console creates a new process for Windows to execute the command after start, but this mechanism does not use a given redirection for the started sub process, unfortunately. The virtual machine may use this internal feature for javaw too. If no redirection is given on the command line, nothing is redirected and the internal started process for javaw doesn't have any console outputs. With the Windows console start command, the console output redirection does not work with java nor with javaw.Įxplanation why it is so: I think that javaw opens an internal process in the OS (adequate using the class), and transfers a known output redirection to this process. I suggest to use the console redirection in any case if javaw is invoked. In this respect, it is essential to know about errors. Especially on starting java, the JRE may write starting errors (class not found) on the error output pipe. It means, if the Java application prints out anything via System.out or System.err, it is written to those files, as also with using java (without w). I have checked that the output redirection works with javaw: javaw -cp. Java Applet and WebStart functionality, including the Applet API, the Java plug-in, the Java Applet Viewer, JNLP and Java Web Start, including the javaws tool, are all deprecated in JDK 9 and will be removed in a future release. Java Deployment Technologies are deprecated and will be removed in a future release However, the options may be removed in a future release. The javaws launcher has a set of options that are supported in the current release. If a JNLP file is specified, javaws will launch the Java application/applet specified in the JNLP file. Java Web Start launches Java applications/applets hosted on a network. The javaws command launches Java Web Start, which is the reference implementation of the Java Network Launching Protocol (JNLP). Games like League of Legends, Minecraft, and GTA V don't cause such resource usage. javaws command, the " Java Web Start command" Created on DecemOpenJDK Platform Binary Using 100 CPU Hello, Whenever I open games on PC similar to Pummel Party, Subnautica, or Cyberpunk2077 my fans run at 100 because the CPU is being used at 100 from the OpenJDK Platform Binary application.Use javaw when you don't want a command prompt window to appear. The javaw command is identical to java, except that with javaw there is no associated console window.It does this by starting a Java runtime environment, loading a specified class, and invoking that class's main method. The java tool launches a Java application.
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