(ns tester.core
(:import potemkin.LazyMapEntry))
(def x (LazyMapEntry. {} :x))
Command Line (Java 7)
$ lein version
Leiningen 2.5.0 on Java 1.7.0_67 Java HotSpot(TM) 64-Bit Server VM
$ lein jar
Compiling tester.core
Created /git/github/tester/target/tester-0.1.0-SNAPSHOT.jar
Command Line (Java 6)
$ JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home lein version
Leiningen 2.5.0 on Java 1.6.0_65 Java HotSpot(TM) 64-Bit Server VM
$ JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home lein jar
Retrieving potemkin/potemkin/0.3.9/potemkin-0.3.9.pom from clojars
Retrieving potemkin/potemkin/0.3.9/potemkin-0.3.9.jar from clojars
Compiling tester.core
java.lang.UnsupportedClassVersionError: potemkin/LazyMapEntry : Unsupported major.minor version 51.0, compiling:(core.clj:1:1)
at clojure.lang.Compiler$InvokeExpr.eval(Compiler.java:3558)
at clojure.lang.Compiler.compile1(Compiler.java:7226)
at clojure.lang.Compiler.compile1(Compiler.java:7216)
at clojure.lang.Compiler.compile(Compiler.java:7292)
This PR ensures that the sole AOT-compiled class is compatible with Java 6.
The current version causes the following:
project.clj
src/tester/core.clj
Command Line (Java 7)
Command Line (Java 6)