java.lang.IllegalArgumentException: Illegal group reference
   at java.util.regex.Matcher.appendReplacement(Matcher.java:857)
   at java.util.regex.Matcher.replaceAll(Matcher.java:955)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.replaceInlineInheritdoc(DocRenderer.java:796)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.replaceInheritdocForDescription(DocRenderer.java:603)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.composeDescription(DocRenderer.java:587)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.extractPHPDocBlock(DocRenderer.java:414)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.extractPHPDoc(DocRenderer.java:377)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.extract(DocRenderer.java:289)
   at org.netbeans.modules.php.editor.completion.DocRenderer$PHPDocExtractor.getPhpDocumentation(DocRenderer.java:277)
   at org.netbeans.modules.php.editor.completion.DocRenderer.getPhpDocumentation(DocRenderer.java:202)
   at org.netbeans.modules.php.editor.completion.DocRenderer.documentIndexedElement(DocRenderer.java:168)
   at org.netbeans.modules.php.editor.completion.DocRenderer.document(DocRenderer.java:146)
   at org.netbeans.modules.php.editor.completion.PHPCodeCompletion.documentElement(PHPCodeCompletion.java:1517)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionDoc.<init>(GsfCompletionDoc.java:116)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionDoc.create(GsfCompletionDoc.java:137)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.resolveDocumentation(GsfCompletionProvider.java:553)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.access$600(GsfCompletionProvider.java:250)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery$1.run(GsfCompletionProvider.java:340)
   at org.netbeans.modules.parsing.impl.TaskProcessor.callUserTask(TaskProcessor.java:609)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:153)
   at org.netbeans.modules.parsing.api.ParserManager$UserTaskAction.run(ParserManager.java:137)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:204)
   at org.netbeans.modules.parsing.impl.TaskProcessor$2.call(TaskProcessor.java:201)
   at org.netbeans.modules.masterfs.filebasedfs.utils.FileChangedManager.priorityIO(FileChangedManager.java:176)
   at org.netbeans.modules.masterfs.providers.ProvidedExtensions.priorityIO(ProvidedExtensions.java:360)
   at org.netbeans.modules.parsing.nb.DataObjectEnvFactory.runPriorityIO(DataObjectEnvFactory.java:141)
   at org.netbeans.modules.parsing.impl.Utilities.runPriorityIO(Utilities.java:90)
Caused: org.netbeans.modules.parsing.spi.ParseException
   at org.netbeans.modules.parsing.impl.TaskProcessor.runUserTask(TaskProcessor.java:209)
   at org.netbeans.modules.parsing.api.ParserManager.parse(ParserManager.java:104)
   at org.netbeans.modules.csl.editor.completion.GsfCompletionProvider$JavaCompletionQuery.query(GsfCompletionProvider.java:345)
   at org.netbeans.spi.editor.completion.support.AsyncCompletionTask.run(AsyncCompletionTask.java:223)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)