Lexer Module Tips and FAQ

Problem: I get the following stacktrace whenever trying to run the demo.

java.lang.NoClassDefFoundError: java/lang/CharSequence
    at java.lang.ClassLoader.defineClass0(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
    at org.netbeans.modules.lexer.demo.PaneDemo.(Unknown Source)
    at org.netbeans.modules.lexer.demo.javacc.CalcPaneDemo.(Unknown Source)
    at org.netbeans.modules.lexer.demo.javacc.CalcPaneDemo.main(Unknown Source)

Problem: How can I use the lexer module for syntax coloring in the editor?
Answer: The Editor Bridge makes that possible.

Problem: Can I reuse an existing javacc or antlr grammar file for the lexer module without any further modifications?
Answer: Please see Batch Lexer Requirements page.