/home/dpecka/src/rrd4j_svn/rrd4jUnable to locate tools.jar. Expected to find it in /usr/lib/jvm/java-1.6.0-sun-1.6.0/lib/tools.jarBuildfile: build.xmlinit:compile: [javac] Compiling 144 source files to /home/dpecka/src/rrd4j_svn/rrd4j/classesBUILD FAILED/home/dpecka/src/rrd4j_svn/rrd4j/build.xml:52: Unable to find a javac compiler;com.sun.tools.javac.Main is not on the classpath.Perhaps JAVA_HOME does not point to the JDK.It is currently set to "/usr/lib/jvm/java-1.6.0-sun-1.6.0/jre"Total time: 0 seconds