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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

Solutions on the web

via processing.org by Unknown author, 1 year ago
via GitHub by tazmaniax
, 10 months ago
This exception has no message.
via JIRA by wroot, 1 year ago
via Jive Software Open Source by wroot, 1 year ago
java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:393) at javax.swing.text.SimpleAttributeSet.addAttribute(SimpleAttributeSet.java:176) at javax.swing.text.StyleConstants.setFontFamily(StyleConstants.java:334) at processing.app.EditorConsole.<init>(EditorConsole.java:93) at processing.app.Editor.<init>(Editor.java:214) at processing.app.Base.<init>(Base.java:146) at processing.app.Base.main(Base.java:101) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at apple.launcher.LaunchRunner.run(LaunchRunner.java:88) at apple.launcher.LaunchRunner.callMain(LaunchRunner.java:50) at apple.launcher.JavaApplicationLauncher.launch(JavaApplicationLauncher.java:52)