[java] easier to switch between java 8 and java 11

Summary:
- make most behaviours independent of the java version so that either works fine without user intervention
  - modify regexp used to parse `javac` output to work for all versions
  - no need to be sure we are in Java 11 to match java 11-only method name in quandary
- for the rest, provide a command-line flag to specify the java version manually in case it differs from the version that infer was built against
  - this only affects the Maven integration for now

To do all that, also change the configure script to record the version of java instead of just a boolean for whether it's >= 10.

Reviewed By: ezgicicek

Differential Revision: D16493988

fbshipit-source-id: 622e91b25

Makefile.autoconf.in

@@ -40,8 +40,8 @@ INSTALL_NAME_TOOL = @INSTALL_NAME_TOOL@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 IS_FACEBOOK_TREE = @IS_FACEBOOK_TREE@
 IS_RELEASE_TREE = @IS_RELEASE_TREE@
+JAVA_MAJOR_VERSION = @JAVA_MAJOR_VERSION@
 JAVAC = @JAVAC@
-JDK11_ENABLED = @JDK11_ENABLED@
 LDD = @LDD@
 LDFLAGS = @LDFLAGS@
 libdir = @libdir@

configure.ac

@@ -273,6 +273,18 @@ if test "x$enable_java_analyzers" = "xyes"; then
   AC_ASSERT_OCAML_PKG([javalib])
   AC_ASSERT_OCAML_PKG([sawja])
 
+  AC_MSG_CHECKING([for Java major version])
+  JAVA_MAJOR_VERSION=`"$JAVAC" -version 2>&1 | head -n 1 | cut -d ' ' -f 2`
+  AS_IF([test "x`echo $JAVA_MAJOR_VERSION | cut -d '.' -f 1`" = "x1"], [
+    # version 1.8.xx -> 8
+    JAVA_MAJOR_VERSION=`echo $JAVA_MAJOR_VERSION | cut -d '.' -f 2`
+  ], [
+    # otherwise pick the first number as the major version
+    JAVA_MAJOR_VERSION=`echo $JAVA_MAJOR_VERSION | cut -d '.' -f 1`
+  ])
+  AC_MSG_RESULT([$JAVA_MAJOR_VERSION])
+  AC_SUBST([JAVA_MAJOR_VERSION])
+
   AC_MSG_CHECKING([for JAVA_HOME])
   cat - <<_ACEOF >conftest.java
 public class conftest {
@@ -283,16 +295,15 @@ public class conftest {
 }
 _ACEOF
   rm -f conftest.class
-  if $JAVAC conftest.java; then
+  if "$JAVAC" conftest.java; then
     rm -f conftest.java
     _USER_JAVA_HOME=$($JAVA -cp . conftest)
     if rm -f conftest.class; then
-       javac_version=`"$JAVAC" -version 2>&1 | head -n 1`
-       [JDK11_ENABLED=`echo "$javac_version" | grep -E -q '^javac\ (11|1[0-9])' && echo yes`]
-       if test "x$JDK11_ENABLED" = "xyes"; then
+       [javac_version_10_or_more=`echo "$JAVA_MAJOR_VERSION" | grep -q -e '^1[0-9]' && echo yes`]
+       if test "x$javac_version_10_or_more" = "xyes"; then
           USER_JAVA_HOME=$_USER_JAVA_HOME
-          AC_SUBST([JDK11_ENABLED])
-       else USER_JAVA_HOME=$_USER_JAVA_HOME/..
+       else
+          USER_JAVA_HOME=$_USER_JAVA_HOME/..
        fi
     else
       AC_MSG_ERROR([Could not run test program with $JAVA])

infer/man/man1/infer-analyze.txt

@@ -385,6 +385,10 @@ JAVA OPTIONS
            Specify a list of Java package prefixes for external Java
            packages. If set, the analysis will not report non-actionable
            warnings on those packages.
+
+       --java-version int
+           The version of Java being used. Set it to your Java version if mvn
+           is failing.
 QUANDARY CHECKER OPTIONS
        --quandary-endpoints json
            Specify endpoint classes for Quandary

infer/man/man1/infer-capture.txt

@@ -261,6 +261,10 @@ JAVA OPTIONS
        --java-jar-compiler path
            Specify the Java compiler jar used to generate the bytecode
 
+       --java-version int
+           The version of Java being used. Set it to your Java version if mvn
+           is failing.
+
 
 ENVIRONMENT
        INFER_ARGS, INFERCONFIG, INFER_STRICT_MODE

infer/man/man1/infer-full.txt

@@ -653,6 +653,10 @@ OPTIONS
            Specify the Java compiler jar used to generate the bytecode       
     See also infer-capture(1).
 
+       --java-version int
+           The version of Java being used. Set it to your Java version if mvn
+           is failing.           See also infer-analyze(1) and infer-capture(1).
+
        --jobs,-j int
            Run the specified number of analysis jobs simultaneously       
     See also infer-analyze(1).
@@ -1416,6 +1420,9 @@ INTERNAL OPTIONS
        --java-jar-compiler-reset
            Cancel the effect of --java-jar-compiler.
 
+       --java-version-reset
+           Cancel the effect of --java-version.
+
        --job-id string
            Specify the job ID of this Infer run.
 

infer/man/man1/infer.txt

@@ -653,6 +653,10 @@ OPTIONS
            Specify the Java compiler jar used to generate the bytecode       
     See also infer-capture(1).
 
+       --java-version int
+           The version of Java being used. Set it to your Java version if mvn
+           is failing.           See also infer-analyze(1) and infer-capture(1).
+
        --jobs,-j int
            Run the specified number of analysis jobs simultaneously       
     See also infer-analyze(1).

infer/src/Makefile

@@ -264,7 +264,7 @@ $(GENERATED_FROM_AUTOCONF): $(MAKEFILE_LIST)
 	  -e 's|@IS_RELEASE_TREE[@]|$(IS_RELEASE_TREE)|g' \
 	  -e "s|@INFER_GIT_COMMIT[@]|$$INFER_GIT_COMMIT|g" \
 	  -e "s|@INFER_GIT_BRANCH[@]|$$INFER_GIT_BRANCH|g" \
-	  -e "s|@JDK11_ENABLED[@]|$(JDK11_ENABLED)|g" \
+	  -e "s|@JAVA_MAJOR_VERSION[@]|$(JAVA_MAJOR_VERSION)|g" \
 	  -e "s|@BUILD_C_ANALYZERS[@]|$(BUILD_C_ANALYZERS)|g" \
 	  -e "s|@BUILD_JAVA_ANALYZERS[@]|$(BUILD_JAVA_ANALYZERS)|g" \
 	  -e "s|@BUILD_PLATFORM[@]|$(BUILD_PLATFORM)|g" \

infer/src/base/Config.ml

@@ -1591,6 +1591,12 @@ and java_jar_compiler =
     ~meta:"path" "Specify the Java compiler jar used to generate the bytecode"
 
 
+and java_version =
+  CLOpt.mk_int_opt ~long:"java-version" ?default:Version.java_version
+    ~in_help:InferCommand.[(Capture, manual_java); (Analyze, manual_java)]
+    "The version of Java being used. Set it to your Java version if mvn is failing."
+
+
 and job_id = CLOpt.mk_string_opt ~long:"job-id" "Specify the job ID of this Infer run."
 
 and jobs =
@@ -2907,6 +2913,8 @@ and iterations = !iterations
 
 and java_jar_compiler = !java_jar_compiler
 
+and java_version = !java_version
+
 and javac_classes_out = !javac_classes_out
 
 and job_id = !job_id

infer/src/base/Config.mli

@@ -441,6 +441,8 @@ val iterations : int
 
 val java_jar_compiler : string option
 
+val java_version : int option
+
 val javac_classes_out : string
 
 val job_id : string option

infer/src/base/Version.ml.in

@@ -47,7 +47,7 @@ let clang_enabled = is_yes "@BUILD_C_ANALYZERS@"
 
 let java_enabled = is_yes "@BUILD_JAVA_ANALYZERS@"
 
-let is_jdk11 = is_yes "@JDK11_ENABLED@"
+let java_version = int_of_string_opt "@JAVA_MAJOR_VERSION@"
 
 let xcode_enabled = is_not_no "@XCODE_SELECT@"
 

infer/src/base/Version.mli

@@ -27,7 +27,7 @@ val clang_enabled : bool
 
 val java_enabled : bool
 
-val is_jdk11 : bool
+val java_version : int option
 
 val xcode_enabled : bool
 

infer/src/integration/Maven.ml

@@ -36,7 +36,11 @@ let infer_profile =
     </profile>|}
        infer_profile_name
        (Config.bin_dir ^/ InferCommand.infer_exe_name)
-       (if Version.is_jdk11 then " <release>11</release>" else ""))
+       ( match Config.java_version with
+       | Some version when version >= 9 ->
+           Printf.sprintf "<release>%d</release>" version
+       | _ ->
+           "" ))
 
 
 let pom_worklist = ref [CLOpt.init_work_dir]

infer/src/java/jClasspath.ml

@@ -119,16 +119,15 @@ let load_from_verbose_output javac_verbose_out =
   let file_in = In_channel.create javac_verbose_out in
   let class_filename_re =
     Str.regexp
-      ( if Version.is_jdk11 then "\\[wrote \\(.*\\)\\]"
-      else
-        Printf.sprintf
-          (* the unreadable regexp below captures 3 possible forms:
+      (Printf.sprintf
+         (* the unreadable regexp below captures 3 possible forms:
             1. [wrote DirectoryFileObject[/path/to/classes_out:path/to/File.java]], leaves `path/to/File.java` in match group 2
             2. [wrote RegularFileObject[path/to/File.java]], leaves `path/to/File.java` in match group 5
-            3. [wrote SimpleFileObject[path/to/File.java]], also leaves `path/to/File.java` in match group 5 *)
-            "\\[wrote \
-             \\(DirectoryFileObject\\[%s:\\(.*\\)\\|\\(\\(Regular\\|Simple\\)FileObject\\[\\(.*\\)\\)\\)\\]\\]"
-            Config.javac_classes_out )
+            3. [wrote SimpleFileObject[path/to/File.java]], also leaves `path/to/File.java` in match group 5
+            4. [wrote path/to/File.java] leaves `path/to/File.java` in match group 6 (from java 11)*)
+         "\\[wrote \
+          \\(DirectoryFileObject\\[%s:\\(.*\\)\\|\\(\\(Regular\\|Simple\\)FileObject\\[\\(.*\\)\\)\\]\\|\\(.*\\)\\)\\]"
+         Config.javac_classes_out)
   in
   let source_filename_re =
     Str.regexp "\\[parsing started \\(Regular\\|Simple\\)FileObject\\[\\(.*\\)\\]\\]"
@@ -143,12 +142,12 @@ let load_from_verbose_output javac_verbose_out =
     | line ->
         if Str.string_match class_filename_re line 0 then
           let path =
-            if Version.is_jdk11 then Str.matched_group 1 line
-            else
-              try Str.matched_group 5 line
+            try Str.matched_group 5 line
+            with Caml.Not_found -> (
+              try Config.javac_classes_out ^/ Str.matched_group 2 line
               with Caml.Not_found ->
-                (* either matched group 5 is found, or matched group 2 is found, see doc for [class_filename_re] above *)
-                Config.javac_classes_out ^/ Str.matched_group 2 line
+                (* either matched group 5, 6, or 2 is found, see doc for [class_filename_re] above *)
+                Str.matched_group 6 line )
           in
           match Javalib.extract_class_name_from_file path with
           | exception (JBasics.Class_structure_error _ | Invalid_argument _) ->

infer/src/quandary/JavaTrace.ml

@@ -551,7 +551,7 @@ module JavaSanitizer = struct
         let sanitizer_matching_supertype typename =
           match (Typ.Name.name typename, method_name) with
           (* string concatenation is translated differently by invokedynamic in JDK11 *)
-          | "java.lang.Object", "makeConcatWithConstants" when Version.is_jdk11 ->
+          | "java.lang.Object", "makeConcatWithConstants" ->
               Some StringConcatenation
           | "java.lang.StringBuilder", "append" ->
               Some StringConcatenation