java.lang.IllegalArgumentException: baseFolder must be folder: W:\RTI\V4.5f\32Bit\ndds.4.5f\doc\html\api_java\index.html@2a46c99f:51002698
   at org.netbeans.spi.java.project.support.JavadocAndSourceRootDetection.findJavadocRoot(JavadocAndSourceRootDetection.java:96)
   at org.netbeans.modules.java.j2seplatform.libraries.JavadocForBinaryQueryLibraryImpl$R.getIndexFolder(JavadocForBinaryQueryLibraryImpl.java:210)
   at org.netbeans.modules.java.j2seplatform.libraries.JavadocForBinaryQueryLibraryImpl$R.getRoots(JavadocForBinaryQueryLibraryImpl.java:175)
   at org.netbeans.modules.javadoc.search.JavadocRegistry.readRoots(JavadocRegistry.java:178)
   at org.netbeans.modules.javadoc.search.JavadocRegistry.getDocRoots(JavadocRegistry.java:129)
   at org.netbeans.modules.javadoc.search.IndexBuilder.refreshIndex(IndexBuilder.java:183)
   at org.netbeans.modules.javadoc.search.IndexBuilder.run(IndexBuilder.java:129)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)