java.lang.OutOfMemoryError: Java heap space
   at java.beans.PropertyChangeSupport$PropertyChangeListenerMap.newArray(PropertyChangeSupport.java:519)
   at java.beans.PropertyChangeSupport$PropertyChangeListenerMap.newArray(PropertyChangeSupport.java:506)
   at java.beans.ChangeListenerMap.add(ChangeListenerMap.java:86)
   at java.beans.PropertyChangeSupport.addPropertyChangeListener(PropertyChangeSupport.java:117)
   at org.netbeans.modules.maven.classpath.AbstractProjectClassPathImpl.addPropertyChangeListener(AbstractProjectClassPathImpl.java:204)
   at org.netbeans.modules.java.classpath.ProxyClassPathImplementation.<init>(ProxyClassPathImplementation.java:77)
   at org.netbeans.spi.java.classpath.support.ClassPathSupport.createProxyClassPathImplementation(ClassPathSupport.java:181)
   at org.netbeans.spi.java.classpath.support.ClassPathSupport.createProxyClassPath(ClassPathSupport.java:197)
   at org.netbeans.modules.maven.output.ExecPluginOutputListenerProvider.processLine(ExecPluginOutputListenerProvider.java:82)
   at org.netbeans.modules.maven.execute.AbstractOutputHandler.processLine(AbstractOutputHandler.java:295)
   at org.netbeans.modules.maven.execute.CommandLineOutputHandler$Output.run(CommandLineOutputHandler.java:347)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)