java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.parser.IToken.getType()" because "token" is null

[edisonluo0501]

Describe the bug
java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.parser.IToken.getType()" because "token" is null
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.getContextSensitiveType(GNUCPPSourceParser.java:270)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.optionalVirtSpecifierSeq(GNUCPPSourceParser.java:4444)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.initDeclarator(GNUCPPSourceParser.java:4385)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.initDeclarator(GNUCPPSourceParser.java:4191)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declSpecifierSequence_initDeclarator(AbstractGNUSourceCodeParser.java:1746)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declSpecifierSequence_initDeclarator(AbstractGNUSourceCodeParser.java:1684)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.simpleDeclaration(GNUCPPSourceParser.java:3274)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declaration(GNUCPPSourceParser.java:3012)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationList(AbstractGNUSourceCodeParser.java:1429)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationListInBraces(AbstractGNUSourceCodeParser.java:1376)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.classSpecifier(GNUCPPSourceParser.java:5399)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declSpecifierSeq(GNUCPPSourceParser.java:3869)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declSpecifierSeq(GNUCPPSourceParser.java:3568)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declSpecifierSequence_initDeclarator(AbstractGNUSourceCodeParser.java:1716)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declSpecifierSequence_initDeclarator(AbstractGNUSourceCodeParser.java:1684)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.simpleDeclaration(GNUCPPSourceParser.java:3274)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declaration(GNUCPPSourceParser.java:3012)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationList(AbstractGNUSourceCodeParser.java:1429)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationListInBraces(AbstractGNUSourceCodeParser.java:1376)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.namespaceDefinitionOrAlias(GNUCPPSourceParser.java:3091)
at org.eclipse.cdt.internal.core.dom.parser.cpp.GNUCPPSourceParser.declaration(GNUCPPSourceParser.java:2968)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.declarationList(AbstractGNUSourceCodeParser.java:1429)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parseTranslationUnit(AbstractGNUSourceCodeParser.java:1368)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.translationUnit(AbstractGNUSourceCodeParser.java:1363)
at org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser.parse(AbstractGNUSourceCodeParser.java:688)
at org.eclipse.cdt.core.dom.parser.AbstractCLikeLanguage.getASTTranslationUnit(AbstractCLikeLanguage.java:171)
at org.eclipse.cdt.internal.core.model.TranslationUnit.getAST(TranslationUnit.java:886)
at org.eclipse.cdt.internal.core.model.TranslationUnit.getAST(TranslationUnit.java:843)

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
java.lang.NullPointerException should be avoided.

Screenshots
I ensure the param of TranslationUnit.getAST is not null.


token maybes return null.

pls check whether there is a problem, if so, fix it thk.

Version Information (please complete the following information):

• OS and OS Version/extra details: Linux
• Eclipse Version from Help -> About -> 2023-06 (4.28.0)
• CDT Version from Help -> About -> Installation Details -> 11.3.0.202309051907

Additional context
Add any other context about the problem here. For example the error log (in workspace/.metadata/.log) or for GDB interaction issues the GDB traces