XCOMMONS-878: Move to Java 8 as minimum version

* Remove pergmen

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/start_xwiki.bat

@@ -34,7 +34,7 @@ REM -------------------------------------------------------------------------
 
 setlocal EnableDelayedExpansion
 
-if not defined XWIKI_OPTS set XWIKI_OPTS=-Xmx512m -XX:MaxPermSize=196m
+if not defined XWIKI_OPTS set XWIKI_OPTS=-Xmx1024m
 
 REM The port on which to start Jetty can be defined in an enviroment variable called JETTY_PORT
 if not defined JETTY_PORT (

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/start_xwiki.sh

@@ -59,7 +59,7 @@ cd "$PRGDIR"
 
 # If no XWIKI_OPTS env variable has been defined use default values.
 if [ -z "$XWIKI_OPTS" ] ; then
-  XWIKI_OPTS="-Xmx512m -XX:MaxPermSize=196m"
+  XWIKI_OPTS="-Xmx1024m"
 fi
 
 # The port on which to start Jetty can be defined in an environment variable called JETTY_PORT

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/start_xwiki_debug.bat

@@ -34,7 +34,7 @@ REM -------------------------------------------------------------------------
 
 setlocal EnableDelayedExpansion
 
-if not defined XWIKI_OPTS set XWIKI_OPTS=-Xmx512m -XX:MaxPermSize=196m
+if not defined XWIKI_OPTS set XWIKI_OPTS=-Xmx1024m
 set XWIKI_OPTS=%XWIKI_OPTS% -Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005
 
 REM The port on which to start Jetty can be defined in an enviroment variable called JETTY_PORT

xwiki-platform-tools/xwiki-platform-tool-jetty/xwiki-platform-tool-jetty-resources/src/main/resources/start_xwiki_debug.sh

@@ -61,7 +61,7 @@ cd "$PRGDIR"
 
 # If no XWIKI_OPTS env variable has been defined use default values.
 if [ -z "$XWIKI_OPTS" ] ; then
-  XWIKI_OPTS="-Xmx512m -XX:MaxPermSize=196m"
+  XWIKI_OPTS="-Xmx1024m"
 fi
 XWIKI_OPTS="$XWIKI_OPTS -Xdebug -Xnoagent -Djava.compiler=NONE"
 XWIKI_OPTS="$XWIKI_OPTS -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005"