Ao executar, aparece o seguinte erro:
BUILD FAILED C:\Users\giovana.tavares\Documents\Curso teste\leiloes\build.xml:41: 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 "C:\Program Files\Java\jre-10.0.2"