Re:using older jdk with NB12

You could set another Java TM for NetBeans to develop. You should set The Java TM on Tools>Java Platform,and add the platform you need( you must install jdk8 on your machine),then you could select the Compile JDK for your project in Project Right Click >Build>Compile,Select JDK your want on the

Re:using older jdk with NB12

You could set another Java TM for NetBeans to develop. You should set The Java TM on Tools>Java Platform,and add the platform you need( you must install jdk8 on your machine),then you could select the Compile JDK for your project in Project Right Click >Build>Compile,Select JDK your want on the