Index: apache-maven/src/bin/mvn
===================================================================
--- apache-maven/src/bin/mvn	(wersja 1073156)
+++ apache-maven/src/bin/mvn	(kopia robocza)
@@ -114,6 +114,21 @@
   # TODO classpath?
 fi
 
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" -a ! "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      javaExecutable="`readlink -f \"$javaExecutable\"`"
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
 if [ -z "$JAVACMD" ] ; then
   if [ -n "$JAVA_HOME"  ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then