This bug was originally marked as duplicate of bug 220938, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related.

Build: NetBeans IDE 8.0 (Build 201403101706)
VM: Java HotSpot(TM) 64-Bit Server VM, 24.55-b03, Java(TM) SE Runtime Environment, 1.7.0_55-b13
OS: Linux

User Comments:
GUEST: Opening an index.gsp page.  There's no problem opening this page with a text editor and the application works with grails run-app.  Seems the problem is with currencySymbol="\$"




Stacktrace: 
java.lang.IllegalStateException: Lexer org.netbeans.modules.groovy.gsp.lexer.GspLexer@fcdfbe
  returned null token but lexerInput.readLength()=199
  lexer-state: GSTART_TAG_BACKSLASH_EXPR
  tokenStartOffset=1827, readOffset=2026, lookaheadOffset=2027
  Chars: ""\\$" /></td></tr>\n                            </g:each>\n                        </table>\n                    </g:each>\n                </div>\n            </g:if>\n        </div>\n\n    </body>\n</html>\n\n" - these characters need to be tokenized.
Fix the lexer to not return null token in this state.
   at org.netbeans.lib.lexer.LexerInputOperation.checkLexerInputFinished(LexerInputOperation.java:457)
   at org.netbeans.lib.lexer.LexerInputOperation.nextToken(LexerInputOperation.java:217)
   at org.netbeans.lib.lexer.inc.IncTokenList.tokenOrEmbeddingImpl(IncTokenList.java:195)
   at org.netbeans.lib.lexer.inc.IncTokenList.tokenCount(IncTokenList.java:152)
   at org.netbeans.lib.lexer.TokenListList.scanTokenList(TokenListList.java:149)
   at org.netbeans.lib.lexer.TokenListList.<init>(TokenListList.java:128)