CODEWITHSUNDEEP
batch-filecmd
Fede E.
Fede E.

Reputation: 1918

start /b javaw with custom path to java home issue

I'm writing a windows batch script to start my Java program in the background, using javaw.

The issue comes when I let the user have a custom path to the Java Home. Let's say in an example when the path to Java home is: C:\Users\Sample User\Desktop\java (notice the space in the path), when I try running the start command, it breaks because of the spaces.

Example:

@echo off
set CUSTOM_JAVA_HOME=C:\Users\Federico Einhorn\Desktop\java

set CP=myjar.jar;../lib/*;.
set JAVA_PARAMS=-myOption -Xmx1024M -classpath %CP%
set JAVA_CLASS=com.myorg.MyClass
set RUN_OPTS=%JAVA_PARAMS% %JAVA_CLASS% start

start /b "%CUSTOM_JAVA_HOME%/bin/javaw" %RUN_OPTS%

That start command fails as the CUSTOM_JAVA_HOME has spaces.

Windows cannot find '-myOption'. Make sure you typed the name correctly, and then try again.

This doesn't happen when I run my jar with regular java:

"%CUSTOM_JAVA_HOME%/bin/java" %RUN_OPTS%

Is there a way to solve this?

Upvotes: 0

Views: 1079

Answers (1)

Compo
Compo

Reputation: 38718

Start sees "%CUSTOM_JAVA_HOME%/bin/javaw" as a title.

The fix is to include a title yourself, even a blank one:

Start "" /B "%CUSTOM_JAVA_HOME%\bin\javaw" %RUN_OPTS%

Upvotes: 4

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