title: NetBeans 12 doesn't manage libraries anymore
body: <p>A week ago I upgraded my Java IDE to Netbeans 12 (and JDK 14), and only yesterday I noticed the window Project Properties (MYPROG) lacks of essential functionality i.e. there are not lines for compiling in <code>*.jar</code>, and mostly there is not any line for adding <code>*.jar</code> libraries, there is instead an empty line for <code>JavaScript</code> libraries, and it is impossible to add them in any other point.</p>
  <p>The real oddity of NetBeans 12 is that it works perfectly even with old projects made with NetBeans 8 and JDK6! but reinstalling previous NetBeans 10 still remaisn a trouble.
  I'm stuck making new projects that need libraries.
  Minor problems are: <code>System.err.println</code> doesn't write in red colour, the path <code>src/mycode</code> has become <code>src/main/java/mycode</code>, why? and perhaps many others.
  My attempts are over.
  I've installed</p>
  <ul>
  <li>OS: Window 10</li>
  <li>jdk-14_window-x64_bin.exe</li>
  <li>Apache NetBeans 12 LTS</li>
  <li>Binaries: netbeans-12.0-bin.zip (SHA-512, PGP ASC) 1st try</li>
  <li>Installers: Apache-NetBeans-12.0-bin-windows-x64.exe (SHA-512, PGP ASC) 2nd try.</li>
  </ul>
  <p>It's a Java project using Maven</p>
  <p>I don't know Gradle and Ant (what are they for?)</p>
  <ul>
  <li>Project Properties (MYPROG)--&gt;Build has only Compile without Compiling, Packaging, Deployment, Documenting</li>
  <li>Project Properties (MYPROG)--&gt; Libraries does not exist
  instead: JavaScript libraries (empty)</li>
  </ul>