Thanks to you all for the detailed and specific information! At first I thought that maybe Maven spawns its goals in separate instances of the JVM (just as one can specify in the Ant "Java" task) so therefore there might have been a possibility to give an option to maven itself in order to let this get through to any plugins. So I guess the only way is indeed to patch the maven.bat file or to specify the environment variable.
regards, Johan ----- Original Message ----- From: "Lester Ward" <[EMAIL PROTECTED]> To: "'Maven Users List'" <[EMAIL PROTECTED]> Sent: Tuesday, January 20, 2004 4:53 PM Subject: RE: specifying more memory for the JVM > >> How can I specify that the JVM used by Maven may consume more memory? > > > In maven.bat > > Specifically, you can pass an argument to any command-line invocation of > Java, so this is not Maven specific. Maven.bat invokes the JVM with this > evil line: > > %MAVEN_JAVA_EXE% > -Djavax.xml.parsers.DocumentBuilderFactory=org.apache.xerces.jaxp.Document Bu > ilderFactoryImpl > -Djavax.xml.parsers.SAXParserFactory=org.apache.xerces.jaxp.SAXParserFacto ry > Impl "-Dmaven.home=%MAVEN_HOME%" "-Dtools.jar=%JAVA_HOME%\lib\tools.jar" > "-Dforehead.conf.file=%MAVEN_HOME%\bin\forehead.conf" %MAVEN_ENDORSED% > %MAVEN_OPTS% -classpath %MAVEN_CLASSPATH% %MAVEN_MAIN_CLASS% > %MAVEN_CMD_LINE_ARGS% > > Which gets expanded to this: > > "D:\j2sdk1.4.1\bin\java.exe" > -Djavax.xml.parsers.DocumentBuilderFactory=org.apache.xerces.jaxp.Document > BuilderFactoryImpl > -Djavax.xml.parsers.SAXParserFactory=org.apache.xerces.jaxp.SAXParserFacto ry > Impl "-Dmaven.home=D:\Programming > \Projects\maven" "-Dtools.jar=D:\j2sdk1.4.1\lib\tools.jar" > "-Dforehead.conf.file=D:\Programming\Project > s\maven\bin\forehead.conf" > "-Djava.endorsed.dirs=D:\j2sdk1.4.1\lib\endorsed;D:\Programming\Projects\mav > en\lib\endorsed" "-Xmx160m" -classpath > "D:\Programming\Projects\maven\lib\forehead-1.0-beta-4.jar" > "com.werken.forehead.Forehead > > The key bit is the -Xmx160m part. This controls the memory allocation of the > JVM. In the Maven.bat file, this happens to be in the MAVEN_OPTS variable. > The options you need are: > > -Xms<size> set initial Java heap size > -Xmx<size> set maximum Java heap size > -Xss<size> set java thread stack size > > So, the -Xmx160m option means "set maximum Java heap size to 160MB". Change > this to -Xmx256m or whatever. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
