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#WHY DO YOU CREATE A PATH FOR JAVA MAC MAC OS X#
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#WHY DO YOU CREATE A PATH FOR JAVA MAC WINDOWS#

Library/Java/JavaVirtualMachines//Contents/Home/binįor example, the latest JDK 1.8 (as of July 2015) is

#WHY DO YOU CREATE A PATH FOR JAVA MAC MAC OS X#

Applications/Eclipse.app/Contents/Eclipse/eclipse.iniįor versions of Mac OS X 10.7+ is something like: On a macOS system, you can find eclipse.ini by right-clicking (or Ctrl+click) on the Eclipse executable in Finder, choose Show Package Contents, and then locate eclipse.ini in the Eclipse folder under Contents. This is how the -vm argument might look on Linux (your exact path to java could be different, of course): If you encounter " Java was started but returned exit code=1" error while starting the eclipse, modify the -vm argument to point to jvm.dll (exact path could be different):Ĭ:\Development\Java\64bit\jdk1.7.0_09\jre\bin\server\jvm.dll Please beware of paths that contain a space, the examples below do not have any spaces, and using quotation marks around paths that contain spaces does not seem to work):Ĭ:\progra~1\Java\jre1.8.0_112\bin\javaw.exeĪn alternative way is to insert the following VM option before the -vmargs option in the Eclipse shortcut's properties (edit the field Target inside the "Shortcut" tab):

#WHY DO YOU CREATE A PATH FOR JAVA MAC WINDOWS#

This is how the -vm argument might look on Windows (your exact path to javaw.exe could be different, of course. Remember that the exact values will differ slightly depending on operating system and Eclipse package. Here is an example of what eclipse.ini might look like on a Windows system after you've added the -vm argument and increased the maximum heap space: 32-bit Eclipse will not work with a 64-bit JVM.

For the 32-bit Eclipse executable (eclipse.exe on Windows) a 32-bit JVM must be used and for the 64-bit Eclipse executable a 64-bit JVM must be used.

The -vm option must occur after the other Eclipse-specific options (such as -product, -launcher.*, etc), but before the -vmargs option, since everything after -vmargs is passed directly to the JVM.

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The value must be the full absolute or relative path to the Java executable, not just to the Java home directory.

A path ending in "bin", pointing to the "bin" directory of the Java distro works, and Ed Merks tells me that pointing to a "shared library" works also. TODO: I know this next statement is not completely true, I just don't know the exact answer.

The -vm option and its value (the path) must be on separate lines.

Note the format of the -vm option - it is important to be exact:

The following examples of eclipse.ini demonstrate correct usage of the -vm option. Many a user has been tripped up because they thought they knew what JVM would be used by default, but they thought wrong. Doing this ensures that you are absolutely certain which JVM Eclipse will run in and insulates you from system changes that can alter the "default" JVM for your system. One of the most recommended options to use is to specify a specific JVM for Eclipse to run on. A max heap of 512MB might be OK for some users, but it's often necessary to bump that value up for large project sets or when some third-party plugins are installed. /./plugins/.86_64_1.1.100.v20110502Īmong other things, this sets the heap space to 40MB initially and a maximum of 512MB, and also specifies a maximum PermGen size of 256MB.

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Make a backup-keep a copy of the original contents on hand so you don't break your installation and have to download it all again.īy default, eclipse.ini looks something like this (the exact contents will vary based on operating system and which Eclipse package you have):.

#WHY DO YOU CREATE A PATH FOR JAVA MAC CODE#

If the JVM keeps exiting with code 2 instead of starting Eclipse, try removing them. -XX VM arguments are subject to change without notice, even during minor updates.ini file unless -launcher.appendVmargs is specified either in the. Any use of -vmargs on the command-line replaces all -vmargs settings in the.All lines after -vmargs are passed as arguments to the JVM, so all arguments and options for eclipse must be specified before -vmargs (just like when you use arguments on the command-line).

Each option and each argument to an option must be on its own line.

You can, and should, experiment with changes to the launch command from your Command Prompt/Terminal before changing the eclipse.ini itself.

There are many options available, please see here. If $ECLIPSE_HOME is not defined, the default eclipse.ini in your Eclipse installation directory (or in the case of Mac, the Eclipse.app/Contents/MacOS directory) is used.Įclipse.ini is a text file containing command-line options that are added to the command line used when Eclipse is started up.

2.3.1 Using a JDK without macOS directory layoutĮclipse startup is controlled by the options in $ECLIPSE_HOME/eclipse.ini.