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Hi, I applied the patches and that helped indeed. However, I might have found another bug, which I guess could be related to some syntax/macro expansion. Namely, here is an excerpt from a macro that I wrote: (defmacro vo-get-view-info (hlvo vid) `(let* ((views ((primitive-get-field <VO.LLVO> "views" <VO.LLVOview[]>) ,hlvo)) (views-ref (primitive-array-get <VO.ViewInfo>)) (vi ((primitive-get-field <VO.LLVOview> "vi" <VO.ViewInfo>) (views-ref views ,vid)))) ... This works fine: #|kawa:16|# (vo-get-view-info vo 0) (0 #!null 0.0 0.0 #!null 0 0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0) However, if I inline `views-ref': (defmacro vo-get-view-info (hlvo vid) `(let* ((views ((primitive-get-field <VO.LLVO> "views" <VO.LLVOview[]>) ,hlvo)) (vi ((primitive-get-field <VO.LLVOview> "vi" <VO.ViewInfo>) ((primitive-array-get <VO.ViewInfo>) views ,vid)))) ... I get an error: #|kawa:18|# (vo-get-view-info vo 0) Invalid parameter, should be: [LVO.LLVOview; java.lang.ClassCastException: [LVO.LLVOview; at atInteractiveLevel.run(<stdin>:18) at gnu.expr.ModuleExp.evalModule(Compiled Code) at kawa.Shell.run(Compiled Code) at kawa.Shell.run(Shell.java:77) at kawa.repl.main(Compiled Code) Maybe I am missing something, but maybe not... Of course, I can keep the first version, so you don't have to hurry to fix this if it is a bug. Aleks