[checkers] enable biabduction by default + docs and logs improvements

Summary:
Refactor `RegisterCheckers` to give a record type to checkers instead of a tuple type.

Print active checkers with their per-language information.

Improve the manual entries slightly.

Reviewed By: sblackshear

Differential Revision: D6051167

fbshipit-source-id: 90bcb61

infer/src/backend/DifferentialFilters.ml

@@ -252,10 +252,7 @@ let do_filter (diff: Differential.t) (renamings: FileRenamings.t) ~(skip_duplica
     else issues
   in
   let diff' =
-    diff
-    |> ( if Config.equal_analyzer Config.analyzer Config.BiAbduction then
-           skip_anonymous_class_renamings
-       else Fn.id )
+    diff |> (if Config.biabduction then skip_anonymous_class_renamings else Fn.id)
     |> (if skip_duplicated_types then skip_duplicated_types_on_filenames renamings else Fn.id)
     |> Fn.id
   in

infer/src/backend/InferAnalyze.ml

@@ -112,14 +112,21 @@ let cluster_should_be_analyzed ~changed_files cluster =
   | None
    -> true
 
+let register_active_checkers () =
+  match Config.analyzer with
+  | Checkers | Crashcontext
+   -> RegisterCheckers.get_active_checkers () |> RegisterCheckers.register
+  | BiAbduction | CaptureOnly | CompileOnly | Linters
+   -> ()
+
 let main ~changed_files ~makefile =
   BuiltinDefn.init () ;
-  RegisterCheckers.register () ;
   ( match Config.modified_targets with
   | Some file
    -> MergeCapture.record_modified_targets_from_file file
   | None
    -> () ) ;
+  register_active_checkers () ;
   match Config.cluster_cmdline with
   | Some fname
    -> process_cluster_cmdline fname
@@ -136,17 +143,16 @@ let main ~changed_files ~makefile =
         else "" )
         (if Int.equal n_clusters_to_analyze 1 then "" else "s")
         Config.results_dir ;
-      let is_java () =
-        List.exists
+      let is_java =
+        ( lazy
+        (List.exists
            ~f:(fun cl -> DB.string_crc_has_extension ~ext:"java" (DB.source_dir_to_string cl))
-          all_clusters
+           all_clusters) )
       in
-      (if Config.print_active_checkers then L.result else L.debug Analysis Quiet)
-        "Active checkers: %a@\n" RegisterCheckers.pp_active_checkers () ;
       L.debug Analysis Quiet "Dynamic dispatch mode: %s@."
         Config.(string_of_dynamic_dispatch dynamic_dispatch) ;
       print_legend () ;
-      if Config.per_procedure_parallelism && not (is_java ()) then (
+      if Config.per_procedure_parallelism && not (Lazy.force is_java) then (
         (* Java uses ZipLib which is incompatible with forking *)
         (* per-procedure parallelism *)
         L.environment_info "Per-procedure parallelism jobs: %d@." Config.jobs ;

infer/src/backend/infer.ml

@@ -43,15 +43,29 @@ let setup () =
   | Explore
    -> ResultsDir.assert_results_dir "please run an infer analysis first"
 
+let print_active_checkers () =
+  (if Config.print_active_checkers && CLOpt.is_originator then L.result else L.environment_info)
+    "Analyzer: %s@."
+    Config.(string_of_analyzer analyzer) ;
+  (if Config.print_active_checkers && CLOpt.is_originator then L.result else L.environment_info)
+    "Active checkers: %a@." (Pp.seq ~sep:", " RegisterCheckers.pp_checker)
+    (RegisterCheckers.get_active_checkers ())
+
 let log_environment_info () =
   L.environment_info "CWD = %s@\n" (Sys.getcwd ()) ;
+  ( match Config.inferconfig_file with
+  | Some file
+   -> L.environment_info "Read configuration in %s@\n" file
+  | None
+   -> L.environment_info "No .inferconfig file found@\n" ) ;
   L.environment_info "Project root = %s@\n" Config.project_root ;
   let infer_args =
     Sys.getenv CLOpt.args_env_var |> Option.map ~f:(String.split ~on:CLOpt.env_var_sep)
     |> Option.value ~default:["<not set>"]
   in
   L.environment_info "INFER_ARGS = %a" Pp.cli_args infer_args ;
-  L.environment_info "command line arguments: %a" Pp.cli_args (Array.to_list Sys.argv)
+  L.environment_info "command line arguments: %a" Pp.cli_args (Array.to_list Sys.argv) ;
+  print_active_checkers ()
 
 let () =
   ( if Config.linters_validate_syntax_only then

infer/src/base/Config.ml

@@ -529,6 +529,10 @@ let exe_usage =
 
 let anon_args = CLOpt.mk_anon ()
 
+let all_checkers = ref []
+
+let disable_all_checkers () = List.iter !all_checkers ~f:(fun (var, _, _, _) -> var := false)
+
 let () =
   let on_unknown_arg_from_command (cmd: CLOpt.command) =
     match cmd with
@@ -662,19 +666,16 @@ and ( annotation_reachability
     , threadsafety
     , suggest_nullable
     , uninit ) =
-  let all_checkers = ref [] in
-  let default_checkers = ref [] in
   let mk_checker ?(default= false) ~long doc =
     let var = CLOpt.mk_bool ~long ~in_help:CLOpt.([(Analyze, manual_generic)]) ~default doc in
-    all_checkers := (var, long) :: !all_checkers ;
-    if default then default_checkers := (var, long) :: !default_checkers ;
+    all_checkers := (var, long, doc, default) :: !all_checkers ;
     var
   in
   let annotation_reachability =
     mk_checker ~default:true ~long:"annotation-reachability"
       "the annotation reachability checker. Given a pair of source and sink annotation, e.g. @PerformanceCritical and @Expensive, this checker will warn whenever some method annotated with @PerformanceCritical calls, directly or indirectly, another method annotated with @Expensive"
   and biabduction =
-    mk_checker ~long:"biabduction"
+    mk_checker ~long:"biabduction" ~default:true
       "the separation logic based bi-abduction analysis using the checkers framework"
   and bufferoverrun = mk_checker ~long:"bufferoverrun" "the buffer overrun analysis"
   and check_nullable =
@@ -696,27 +697,29 @@ and ( annotation_reachability
   and printf_args =
     mk_checker ~long:"printf-args" ~default:true
       "the detection of mismatch between the Java printf format strings and the argument types For, example, this checker will warn about the type error in `printf(\"Hello %d\", \"world\")`"
-  and repeated_calls = mk_checker ~long:"repeated-calls" "check for repeated calls"
   and quandary = mk_checker ~long:"quandary" ~default:true "the quandary taint analysis"
+  and repeated_calls = mk_checker ~long:"repeated-calls" "check for repeated calls"
   and resource_leak = mk_checker ~long:"resource-leak" ""
   and siof =
     mk_checker ~long:"siof" ~default:true
       "the Static Initialization Order Fiasco analysis (C++ only)"
-  and threadsafety = mk_checker ~long:"threadsafety" ~default:true "the thread safety analysis"
   and suggest_nullable =
-    mk_checker ~long:"suggest-nullable" ~default:false
-      "Nullable annotation sugesstions analysis (experimental)"
+    mk_checker ~long:"suggest-nullable" ~default:false "Nullable annotation sugesstions analysis"
+  and threadsafety = mk_checker ~long:"threadsafety" ~default:true "the thread safety analysis"
   and uninit = mk_checker ~long:"uninit" ~default:true "checker for use of uninitialized values" in
-  let mk_only (var, long) =
+  let mk_only (var, long, doc, _) =
     let _ : bool ref =
       CLOpt.mk_bool_group ~long:(long ^ "-only")
         ~in_help:CLOpt.([(Analyze, manual_generic)])
-        (Printf.sprintf "Enable $(b,--%s) and disable all other checkers" long)
-        [(* enable this checker *) var]
-        ((* disable all checkers except this one *)
-         List.filter_map
-           ~f:(fun (var', long') -> if String.equal long long' then None else Some var')
-           !all_checkers)
+        ~f:(fun b ->
+          disable_all_checkers () ;
+          var := b ;
+          b)
+        ( if String.equal doc "" then ""
+        else Printf.sprintf "Enable $(b,--%s) and disable all other checkers" long )
+        [] (* do all the work in ~f *)
+           []
+      (* do all the work in ~f *)
     in
     ()
   in
@@ -726,10 +729,20 @@ and ( annotation_reachability
       ~in_help:CLOpt.([(Analyze, manual_generic)])
       ~default:true
       ( "Default checkers: "
-      ^ ( List.map ~f:(fun (_, s) -> Printf.sprintf "$(b,--%s)" s) !default_checkers
+      ^ ( List.rev_filter_map
+            ~f:(fun (_, long, _, default) ->
+              if default then Some (Printf.sprintf "$(b,--%s)" long) else None)
+            !all_checkers
         |> String.concat ~sep:", " ) )
-      (List.map ~f:fst !default_checkers)
+      ~f:(fun b ->
+        List.iter
+          ~f:(fun (var, _, _, default) ->
+            var := if b then default || !var else not default && !var)
+          !all_checkers ;
+        b)
+      [] (* do all the work in ~f *)
          []
+    (* do all the work in ~f *)
   in
   ( annotation_reachability
   , biabduction
@@ -1798,7 +1811,7 @@ and () = CLOpt.mk_set ~parse_mode:CLOpt.Javac version ~deprecated:["version"] ~l
 
 (** Parse Command Line Args *)
 
-let config_file =
+let inferconfig_file =
   let rec find dir =
     match Sys.file_exists ~follow_symlinks:false (dir ^/ CommandDoc.inferconfig_file) with
     | `Yes
@@ -1845,7 +1858,7 @@ let post_parsing_initialization command_opt =
           (match !analyzer with Some a -> a | None -> BiAbduction)
       in
       let infer_version =
-        match config_file with
+        match inferconfig_file with
         | Some inferconfig
          -> Printf.sprintf "version %s/inferconfig %s" Version.commit
               (Digest.to_hex (Digest.file inferconfig))
@@ -1933,28 +1946,29 @@ let post_parsing_initialization command_opt =
   (* set analyzer mode to linters in linters developer mode *)
   if !linters_developer_mode then analyzer := Some Linters ;
   if !default_linters then linters_def_file := linters_def_default_file :: !linters_def_file ;
-  ( match !analyzer with
-  | Some BiAbduction
-   -> biabduction := true
-  | Some Crashcontext
-   -> crashcontext := true
-  | Some (CaptureOnly | CompileOnly | Checkers | Linters)
-   -> ()
-  | None
-   -> let open CLOpt in
-      match command_opt with
+  ( if Option.is_none !analyzer then
+      match (command_opt : CLOpt.command option) with
       | Some Compile
        -> analyzer := Some CompileOnly
       | Some Capture
        -> analyzer := Some CaptureOnly
       | _
-       -> biabduction := true
-      (* the default option is to run the biabduction analysis *) ) ;
+       -> () ) ;
+  ( match !analyzer with
+  | Some BiAbduction | None
+   -> disable_all_checkers () ;
+      (* technically the biabduction checker doesn't run in this mode, but this gives an easy way to test if the biabduction *analysis* is active *)
+      biabduction := true
+  | Some Crashcontext
+   -> disable_all_checkers () ;
+      crashcontext := true
+  | Some (CaptureOnly | Checkers | CompileOnly | Linters)
+   -> () ) ;
   Option.value ~default:CLOpt.Run command_opt
 
 let command, parse_args_and_return_usage_exit =
   let command_opt, usage_exit =
-    CLOpt.parse ?config_file ~usage:exe_usage startup_action initial_command
+    CLOpt.parse ?config_file:inferconfig_file ~usage:exe_usage startup_action initial_command
   in
   let command = post_parsing_initialization command_opt in
   (command, usage_exit)
@@ -2462,10 +2476,7 @@ let dynamic_dispatch =
     | BiAbduction
      -> Lazy
     | Checkers when biabduction
-     -> if quandary then
-          F.eprintf
-            "WARNING: Running Quandary on Java is not compatible with the Biabduction analysis@." ;
-        Lazy
+     -> Lazy
     | Checkers when quandary
      -> Sound
     | _

infer/src/base/Config.mli

@@ -453,6 +453,8 @@ val infer_is_clang : bool
 
 val infer_is_javac : bool
 
+val inferconfig_file : string option
+
 val iphoneos_target_sdk_version : string option
 
 type iphoneos_target_sdk_version_path_regex = {path: Str.regexp; version: string}

infer/src/checkers/registerCheckers.ml

@@ -17,57 +17,90 @@ module F = Format
 (* make sure SimpleChecker.ml is not dead code *)
 let () = if false then let module SC = SimpleChecker.Make in ()
 
-type callback =
+type callback_fun =
   | Procedure of Callbacks.proc_callback_t
   | DynamicDispatch of Callbacks.proc_callback_t
   | Cluster of Callbacks.cluster_callback_t
 
-let checkers =
-  [ ( "annotation reachability"
-    , Config.annotation_reachability
-    , [(Procedure AnnotationReachability.checker, Config.Java)] )
-  ; ( "biabduction"
-    , Config.biabduction
-    , [ (Procedure Interproc.analyze_procedure, Config.Clang)
-      ; (DynamicDispatch Interproc.analyze_procedure, Config.Java) ] )
-  ; ( "buffer overrun"
-    , Config.bufferoverrun
-    , [ (Procedure BufferOverrunChecker.checker, Config.Clang)
-      ; (Procedure BufferOverrunChecker.checker, Config.Java) ] )
-  ; ("crashcontext", Config.crashcontext, [(Procedure BoundedCallTree.checker, Config.Java)])
-  ; ("eradicate", Config.eradicate, [(Procedure Eradicate.callback_eradicate, Config.Java)])
-  ; ( "fragment retains view"
-    , Config.fragment_retains_view
-    , [(Procedure FragmentRetainsViewChecker.callback_fragment_retains_view, Config.Java)] )
-  ; ( "immutable cast"
-    , Config.immutable_cast
-    , [(Procedure ImmutableChecker.callback_check_immutable_cast, Config.Java)] )
-  ; ("liveness", Config.liveness, [(Procedure Liveness.checker, Config.Clang)])
-  ; ("printf args", Config.printf_args, [(Procedure PrintfArgs.callback_printf_args, Config.Java)])
-  ; ( "nullable suggestion"
-    , Config.suggest_nullable
-    , [ (Procedure NullabilitySuggest.checker, Config.Java)
-      ; (Procedure NullabilitySuggest.checker, Config.Clang) ] )
-  ; ("nullable checks", Config.check_nullable, [(Procedure NullabilityCheck.checker, Config.Clang)])
-  ; ( "quandary"
-    , Config.quandary
-    , [ (Procedure JavaTaintAnalysis.checker, Config.Java)
-      ; (Procedure ClangTaintAnalysis.checker, Config.Clang) ] )
-  ; ( "repeated calls"
-    , Config.repeated_calls
-    , [(Procedure RepeatedCallsChecker.callback_check_repeated_calls, Config.Java)] )
-  ; ("resource leak", Config.resource_leak, [(Procedure ResourceLeaks.checker, Config.Java)])
-  ; ("SIOF", Config.siof, [(Procedure Siof.checker, Config.Clang)])
-  ; ("uninitialized variables", Config.uninit, [(Procedure Uninit.checker, Config.Clang)])
-  ; ( "thread safety"
-    , Config.threadsafety
-    , [ (Procedure ThreadSafety.analyze_procedure, Config.Clang)
+type callback = callback_fun * Config.language
+
+type checker = {name: string; active: bool; callbacks: callback list}
+
+let all_checkers =
+  [ { name= "annotation reachability"
+    ; active= Config.annotation_reachability
+    ; callbacks= [(Procedure AnnotationReachability.checker, Config.Java)] }
+  ; { name= "biabduction"
+    ; active= Config.biabduction
+    ; callbacks=
+        [ (Procedure Interproc.analyze_procedure, Config.Clang)
+        ; (DynamicDispatch Interproc.analyze_procedure, Config.Java) ] }
+  ; { name= "buffer overrun"
+    ; active= Config.bufferoverrun
+    ; callbacks=
+        [ (Procedure BufferOverrunChecker.checker, Config.Clang)
+        ; (Procedure BufferOverrunChecker.checker, Config.Java) ] }
+  ; { name= "crashcontext"
+    ; active= Config.crashcontext
+    ; callbacks= [(Procedure BoundedCallTree.checker, Config.Java)] }
+  ; { name= "eradicate"
+    ; active= Config.eradicate
+    ; callbacks= [(Procedure Eradicate.callback_eradicate, Config.Java)] }
+  ; { name= "fragment retains view"
+    ; active= Config.fragment_retains_view
+    ; callbacks=
+        [(Procedure FragmentRetainsViewChecker.callback_fragment_retains_view, Config.Java)] }
+  ; { name= "immutable cast"
+    ; active= Config.immutable_cast
+    ; callbacks= [(Procedure ImmutableChecker.callback_check_immutable_cast, Config.Java)] }
+  ; { name= "liveness"
+    ; active= Config.liveness
+    ; callbacks= [(Procedure Liveness.checker, Config.Clang)] }
+  ; { name= "printf args"
+    ; active= Config.printf_args
+    ; callbacks= [(Procedure PrintfArgs.callback_printf_args, Config.Java)] }
+  ; { name= "nullable checks"
+    ; active= Config.check_nullable
+    ; callbacks= [(Procedure NullabilityCheck.checker, Config.Clang)] }
+  ; { name= "nullable suggestion"
+    ; active= Config.suggest_nullable
+    ; callbacks=
+        [ (Procedure NullabilitySuggest.checker, Config.Java)
+        ; (Procedure NullabilitySuggest.checker, Config.Clang) ] }
+  ; { name= "quandary"
+    ; active= Config.quandary
+    ; callbacks=
+        [ (Procedure JavaTaintAnalysis.checker, Config.Java)
+        ; (Procedure ClangTaintAnalysis.checker, Config.Clang) ] }
+  ; { name= "repeated calls"
+    ; active= Config.repeated_calls
+    ; callbacks= [(Procedure RepeatedCallsChecker.callback_check_repeated_calls, Config.Java)] }
+  ; { name=
+        "resource leak"
+        (** toy resource analysis to use in the infer lab, see the lab/ directory *)
+    ; active= Config.resource_leak
+    ; callbacks=
+        [ ( (* the checked-in version is intraprocedural, but the lab asks to make it interprocedural later on *)
+            Procedure ResourceLeaks.checker
+          , Config.Java ) ] }
+  ; {name= "SIOF"; active= Config.siof; callbacks= [(Procedure Siof.checker, Config.Clang)]}
+  ; { name= "thread safety"
+    ; active= Config.threadsafety
+    ; callbacks=
+        [ (Procedure ThreadSafety.analyze_procedure, Config.Clang)
         ; (Procedure ThreadSafety.analyze_procedure, Config.Java)
         ; (Cluster ThreadSafety.file_analysis, Config.Clang)
-      ; (Cluster ThreadSafety.file_analysis, Config.Java) ] ) ]
+        ; (Cluster ThreadSafety.file_analysis, Config.Java) ] }
+  ; { name= "uninitialized variables"
+    ; active= Config.uninit
+    ; callbacks= [(Procedure Uninit.checker, Config.Clang)] } ]
+
+let get_active_checkers () =
+  let filter_checker {active} = active in
+  List.filter ~f:filter_checker all_checkers
 
-let register () =
-  let register_one (_, active, callbacks) =
+let register checkers =
+  let register_one {callbacks} =
     let register_callback (callback, language) =
       match callback with
       | Procedure procedure_cb
@@ -77,14 +110,22 @@ let register () =
       | Cluster cluster_cb
        -> Callbacks.register_cluster_callback language cluster_cb
     in
-    if active then List.iter ~f:register_callback callbacks
+    List.iter ~f:register_callback callbacks
   in
   List.iter ~f:register_one checkers
 
-let pp_active_checkers fmt () =
-  let has_active = ref false in
-  List.iter checkers ~f:(fun (name, active, _) ->
-      if active then (
-        Format.fprintf fmt "%s%s" (if !has_active then ", " else "") name ;
-        has_active := true ) ) ;
-  if not !has_active then Format.fprintf fmt "none"
+module LanguageSet = Caml.Set.Make (struct
+  type t = Config.language
+
+  let compare = Config.compare_language
+end)
+
+let pp_checker fmt {name; callbacks} =
+  let langs_of_callbacks =
+    List.fold_left callbacks ~init:LanguageSet.empty ~f:(fun langs (_, lang) ->
+        LanguageSet.add lang langs )
+    |> LanguageSet.elements
+  in
+  F.fprintf fmt "%s (%a)" name
+    (Pp.seq ~sep:", " (Pp.to_string ~f:Config.string_of_language))
+    langs_of_callbacks

infer/src/checkers/registerCheckers.mli

@@ -9,6 +9,10 @@
 
 open! IStd
 
-val register : unit -> unit
+type checker
 
-val pp_active_checkers : Format.formatter -> unit -> unit
+val get_active_checkers : unit -> checker list
+
+val register : checker list -> unit
+
+val pp_checker : Format.formatter -> checker -> unit

infer/tests/build_systems/gradle/Makefile

@@ -18,7 +18,7 @@ INFERPRINT_OPTIONS = --issues-tests
 include $(TESTS_DIR)/java.make
 include $(TESTS_DIR)/infer.make
 
-infer-out/report.json: $(JAVA_DEPS) $(SOURCES)
+infer-out/report.json: $(JAVA_DEPS) $(SOURCES) $(MAKEFILE_LIST)
 #	mock version of gradle
 	$(QUIET)PATH=$(CURDIR)/../mock:"$$PATH"; \
 	cd $(SOURCES_DIR) && \

infer/tests/build_systems/resource_leak_exception_lines/Makefile

@@ -17,7 +17,7 @@ default: analyze
 .PHONY: analyze
 analyze: $(REPORT)
 
-$(REPORT):
+$(REPORT): $(JAVA_DEPS) $(MAKEFILE_LIST) SimpleLeak.java
 	$(QUIET)$(call silent_on_success,Running analysis,\
 	  $(INFER_BIN) -o $(INFER_OUT) --project-root $(CURDIR) -- javac SimpleLeak.java)
 

infer/tests/codetoanalyze/cpp/threadsafety/Makefile

@@ -10,7 +10,7 @@ TESTS_DIR = ../../..
 ANALYZER = checkers
 # see explanations in cpp/errors/Makefile for the custom isystem
 CLANG_OPTIONS = -x c++ -std=c++11 -nostdinc++ -isystem$(ROOT_DIR) -isystem$(CLANG_INCLUDES)/c++/v1/ -c
-INFER_OPTIONS = --threadsafety --ml-buckets cpp --no-filtering --debug-exceptions --project-root $(TESTS_DIR)
+INFER_OPTIONS = --threadsafety-only --debug-exceptions --project-root $(TESTS_DIR)
 INFERPRINT_OPTIONS = --issues-tests
 
 SOURCES = $(wildcard *.cpp)

infer/tests/codetoanalyze/cpp/uninit/Makefile

@@ -10,7 +10,7 @@ TESTS_DIR = ../../..
 ANALYZER = checkers
 # see explanations in cpp/errors/Makefile for the custom isystem
 CLANG_OPTIONS = -x c++ -std=c++11 -nostdinc++ -isystem$(MODELS_DIR)/cpp/include -isystem$(CLANG_INCLUDES)/c++/v1/ -c
-INFER_OPTIONS = --uninit --ml-buckets cpp --no-filtering --debug-exceptions --project-root $(TESTS_DIR)
+INFER_OPTIONS = --uninit-only --debug-exceptions --project-root $(TESTS_DIR)
 INFERPRINT_OPTIONS = --issues-tests
 
 SOURCES = uninit.cpp

infer/tests/codetoanalyze/java/crashcontext/issues.exp

@@ -1,5 +1,5 @@
-{"stack":[{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.bar():void","location":{"location_type":"call_site","file":"BranchingCallsExample.java","line":24,"blame_range":[{"start_line":22,"end_line":25}]},"callees":[{"method_name":"java.lang.String.toString():java.lang.String","callees":[]}]},{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.foo():void","location":{"location_type":"call_site","file":"BranchingCallsExample.java","line":29,"blame_range":[{"start_line":27,"end_line":30}]},"callees":[{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.bar():void","location":{"location_type":"proc_start","file":"BranchingCallsExample.java","line":22,"blame_range":[{"start_line":22,"end_line":25}]},"callees":[]},{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.pre_bar():void","location":{"location_type":"proc_start","file":"BranchingCallsExample.java","line":14,"blame_range":[{"start_line":14,"end_line":15}]},"callees":[]}]},{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.main(java.lang.String[]):void","location":{"location_type":"call_site","file":"BranchingCallsExample.java","line":34,"blame_range":[{"start_line":33,"end_line":34}]},"callees":[{"method_name":"codetoanalyze.java.crashcontext.BranchingCallsExample.foo():void","location":{"location_type":"proc_start","file":"BranchingCallsExample.java","line":27,"blame_range":[{"start_line":27,"end_line":30}]},"callees":[]}]}]}
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-{"stack":[{"method_name":"codetoanalyze.java.crashcontext.NativeMethodExample.foo():void","location":{"location_type":"call_site","file":"NativeMethodExample.java","line":18,"blame_range":[{"start_line":16,"end_line":19}]},"callees":[{"method_name":"java.lang.String.toString():java.lang.String","callees":[]}]},{"method_name":"sun.reflect.NativeMethodAccessorImpl.invoke0","location":{"location_type":"call_site","file":"Native Method","blame_range":[]},"callees":[]},{"method_name":"sun.reflect.NativeMethodAccessorImpl.invoke","location":{"location_type":"call_site","file":"NativeMethodAccessorImpl.java","line":62,"blame_range":[]},"callees":[]},{"method_name":"sun.reflect.DelegatingMethodAccessorImpl.invoke","location":{"location_type":"call_site","file":"DelegatingMethodAccessorImpl.java","line":43,"blame_range":[]},"callees":[]},{"method_name":"java.lang.reflect.Method.invoke","location":{"location_type":"call_site","file":"Method.java","line":497,"blame_range":[]},"callees":[]},{"method_name":"codetoanalyze.java.crashcontext.NativeMethodExample.main(java.lang.String[]):void","location":{"location_type":"call_site","file":"NativeMethodExample.java","line":27,"blame_range":[{"start_line":21,"end_line":31}]},"callees":[{"method_name":"java.lang.Class.getDeclaredMethod(java.lang.String,java.lang.Class[]):java.lang.reflect.Method","callees":[]},{"method_name":"java.lang.reflect.Method.invoke(java.lang.Object,java.lang.Object[]):java.lang.Object","callees":[]},{"method_name":"__new_array","callees":[]}]}]}
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