Based on discussions I've seen on this list and clojure-dev, I think
you're using internal APIs that are not considered "supported" and
therefore subject to change at any time.
I asked about using clojure.lang.RT a while ago and was told to rely
on very little of the API, for example, so all I rely on is .var() and
calling .invoke() on the result of that. I would say the Compiler is
"out of bounds" and that you should instead use RT.var() and .invoke()
with basic Clojure functions to read and eval your string.
On Tue, Mar 12, 2013 at 6:29 PM, Taegyoon Kim <stelofl...@gmail.com> wrote:
> A new error occurred in Clojure 1.5.0.
>
> (Java interop: Compiler.load(new StringReader(str));)
>
> # Code #
> import java.io.IOException;
> import java.io.StringReader;
> import clojure.lang.Compiler;
> import clojure.lang.RT;
> import clojure.lang.Var;
> public class Main {
> public static void main(String[] args) throws IOException,
> ClassNotFoundException {
> //clojure.main.main(args);
>
> // Load the Clojure script -- as a side effect this initializes the
> runtime.
> String str = "(ns user) (defn foo [a b] (str a \" \" b)) (def a
> 3)";
> //RT.loadResourceScript("foo.clj");
> Compiler.load(new StringReader(str));
> // Get a reference to the foo function.
> Var foo = RT.var("user", "foo");
> Var a = RT.var("user", "a"); // reference to the variable a
> // Call it!
> Object result = foo.invoke("Hi", "there");
> System.out.println(result);
>
> System.out.println(a);
> System.out.println(a.get());
> }
> }
>
> Test code: https://bitbucket.org/ktg/clojureembedtest (Eclipse project)
>
> Reference:
> http://stackoverflow.com/questions/2181774/calling-clojure-from-java
>
>
> $ java -version
> java version "1.7.0_15"
> OpenJDK Runtime Environment (IcedTea7 2.3.7) (7u15-2.3.7-0ubuntu1~12.04.1)
> OpenJDK Client VM (build 23.7-b01, mixed mode, sharing)
> $ java -cp clojure-1.5.0.jar:. Main
>
> Exception in thread "main" java.lang.ExceptionInInitializerError
> at clojure.lang.Compiler.<clinit>(Compiler.java:47)
> at Main.main(Main.java:16)
> Caused by: java.lang.NullPointerException
> at clojure.lang.RT.baseLoader(RT.java:2043)
> at clojure.lang.RT.load(RT.java:417)
> at clojure.lang.RT.load(RT.java:411)
> at clojure.lang.RT.doInit(RT.java:447)
> at clojure.lang.RT.<clinit>(RT.java:329)
> ... 2 more
> $ java -cp clojure-1.4.0.jar:. Main
>
> Hi there
> #'user/a
> 3
>
>
>
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