added GraalVM 20

Author: BrunoBonacci

README.md

@@ -23,6 +23,7 @@ Here the list of libraries tested:
   - ring/http-kit - Web server :question:
   - [aleph](./aleph) - Web server :white_check_mark:
   - [safely](./safely) - Circuit breaker :white_check_mark:
+  - [secure-random](./secure-random) - `SecureRandom` initialization :white_check_mark:
 
 
 More libraries to come (*PRs are welcome*).

clojure/README.md

@@ -45,14 +45,15 @@ Currently testing the following Clojure versions
   - Clojure 1.10.0
   - Clojure 1.10.1
 
-And the following GraalVM versions
+And the following GraalVM versions have been tested.
 
   - GraalVM-CE-1.0.0-rc14
   - GraalVM-CE-1.0.0-rc15
   - GraalVM-CE-1.0.0-rc16
   - GraalVM-CE-19.0.0
   - GraalVM-CE-19.3.0.2
   - GraalVM-CE-19.3.1
+  - GraalVM-CE-20.0.0
 
 
 This is the current result:
@@ -61,29 +62,40 @@ This is the current result:
 ----------------------------------------------------------------------
                       Verifying native images
 ----------------------------------------------------------------------
+verifying simple-clojure-1.10.1-graal-20.0.0       : OK
+verifying simple-clojure-1.10.0-graal-20.0.0       : OK
+verifying simple-clojure-1.9.0-graal-20.0.0        : OK
+verifying simple-clojure-1.8.0-graal-20.0.0        : OK
+verifying simple-clojure-1.7.0-graal-20.0.0        : OK
+
 verifying simple-clojure-1.10.1-graal-19.3.1       : OK
 verifying simple-clojure-1.10.0-graal-19.3.1       : OK
 verifying simple-clojure-1.9.0-graal-19.3.1        : OK
 verifying simple-clojure-1.8.0-graal-19.3.1        : OK
 verifying simple-clojure-1.7.0-graal-19.3.1        : OK
+
 verifying simple-clojure-1.10.1-graal-19.3.0.2     : OK
 verifying simple-clojure-1.10.0-graal-19.3.0.2     : OK
 verifying simple-clojure-1.9.0-graal-19.3.0.2      : OK
 verifying simple-clojure-1.8.0-graal-19.3.0.2      : OK
 verifying simple-clojure-1.7.0-graal-19.3.0.2      : OK
+
 verifying simple-clojure-1.10.1-graal-19.0.0       : OK
 verifying simple-clojure-1.10.0-graal-19.0.0       : OK
 verifying simple-clojure-1.9.0-graal-19.0.0        : OK
 verifying simple-clojure-1.8.0-graal-19.0.0        : OK
 verifying simple-clojure-1.7.0-graal-19.0.0        : OK
+
 verifying simple-clojure-1.10.0-graal-1.0.0-rc16   : OK
 verifying simple-clojure-1.9.0-graal-1.0.0-rc16    : OK
 verifying simple-clojure-1.8.0-graal-1.0.0-rc16    : OK
 verifying simple-clojure-1.7.0-graal-1.0.0-rc16    : OK
+
 verifying simple-clojure-1.10.0-graal-1.0.0-rc15   : OK
 verifying simple-clojure-1.9.0-graal-1.0.0-rc15    : OK
 verifying simple-clojure-1.8.0-graal-1.0.0-rc15    : OK
 verifying simple-clojure-1.7.0-graal-1.0.0-rc15    : OK
+
 verifying simple-clojure-1.10.0-graal-1.0.0-rc14   : OK
 verifying simple-clojure-1.9.0-graal-1.0.0-rc14    : OK
 verifying simple-clojure-1.8.0-graal-1.0.0-rc14    : OK

secure-random-trick/README.md

@@ -0,0 +1,12 @@
+# secure-random
+
+The smallest project possible, which demonstrates the issue with
+`SecureRandom` objects bound to dynamic Vars.
+
+`SecureRandom` class need to be initialized at Runtime.
+
+## Usage
+
+1. Point `[:native-image :graal-bin]` in project.clj to your GRAAL_VM installation.
+2. Run `lein native-image`
+3. the run `./target/simple-main`

secure-random-trick/project.clj

@@ -0,0 +1,23 @@
+(defproject secure-random "0.1.0-SNAPSHOT"
+  :dependencies [[org.clojure/clojure "1.9.0"]]
+  :plugins [[io.taylorwood/lein-native-image "0.3.1"]]
+  :native-image {;; name of output image, optional
+                 :name "simple-main"
+                 ;; path to GraalVM home, optional
+                 :graal-bin
+                 "/Library/Java/JavaVirtualMachines/graalvm-ce-java11-20.0.0/Contents/Home/bin"
+
+                 ;; pass-thru args to GraalVM native-image, optional
+                 :opts ["--verbose"
+                        "--no-fallback"
+                        "--enable-all-security-services"
+                        "--initialize-at-build-time"
+                        "-H:+ReportExceptionStackTraces"
+                        "--report-unsupported-elements-at-runtime"]}
+
+
+  :main simple.main
+
+  :profiles {:uberjar {:aot :all
+                       :jvm-opts ["-Dclojure.compiler.direct-linking=true"]}}
+  :repl-options {:init-ns simple.main})

secure-random-trick/test/secure_random_trick/core_test.clj

@@ -1,4 +1,4 @@
-(ns secure-random-trick.core
+(ns simple.main
   (:gen-class)
   (:import (java.security SecureRandom)
            (java.util Random)))
@@ -9,11 +9,17 @@
       )
   )
 
-;; Caused by: com.oracle.graal.pointsto.constraints.UnsupportedFeatureException: No instances of sun.security.provider.NativePRNG are allowed in the image heap as this class should be initialized at image runtime. To see how this object got instantiated use -H:+TraceClassInitialization.
+;; Caused by:
+;; com.oracle.graal.pointsto.constraints.UnsupportedFeatureException:
+;; No instances of sun.security.provider.NativePRNG are allowed in the
+;; image heap as this class should be initialized at image runtime. To
+;; see how this object got instantiated use
+;; -H:+TraceClassInitialization.
+;;
 ;; Detailed message:
 ;; Trace:  object java.security.SecureRandom
 ;; object clojure.lang.Var
-;; method secure_random_trick.core$next_random_long_BANG_.invokeStatic()
+;; method secure_random.core$next_random_long_BANG_.invokeStatic()
 
 (defn next-random-long!
   []