gistfile1.txt

in my pom.xml:

      <dependency>
	<groupId>org.clojure</groupId>
	<artifactId>clojure</artifactId>
	<version>1.1.0</version>
      </dependency>
      <dependency>
	<groupId>org.clojure</groupId>
	<artifactId>clojure-contrib</artifactId>
	<version>1.1.0</version>
      </dependency>
      <dependency>
	<groupId>swank-clojure</groupId>
	<artifactId>swank-clojure</artifactId>
	<version>1.2.0-SNAPSHOT</version>
      </dependency>

NB: I've used also swank 1.0 and 1.1, same exception

$ mvn clojure:swank

Exception in thread "main" clojure.lang.LispReader$ReaderException: java.lang.NumberFormatException: Invalid number: 2009-09-14
	at clojure.lang.LispReader.read(LispReader.java:180)
	at clojure.core$read__5425.invoke(core.clj:2385)
	at clojure.core$read__5425.invoke(core.clj:2383)
	at clojure.main$eval_opt__7411.invoke(main.clj:225)
	at clojure.main$initialize__7418.invoke(main.clj:246)
	at clojure.main$null_opt__7446.invoke(main.clj:271)
	at clojure.main$main__7466.doInvoke(main.clj:346)
	at clojure.lang.RestFn.invoke(RestFn.java:458)
	at clojure.lang.Var.invoke(Var.java:371)
	at clojure.lang.AFn.applyToHelper(AFn.java:184)
	at clojure.lang.Var.applyTo(Var.java:476)
	at clojure.main.main(main.java:37)
Caused by: java.lang.NumberFormatException: Invalid number: 2009-09-14
	at clojure.lang.LispReader.readNumber(LispReader.java:218)
	at clojure.lang.LispReader.read(LispReader.java:136)
	at clojure.lang.LispReader.readDelimitedList(LispReader.java:1057)
	at clojure.lang.LispReader$ListReader.invoke(LispReader.java:897)
	at clojure.lang.LispReader.readDelimitedList(LispReader.java:1048)
	at clojure.lang.LispReader$ListReader.invoke(LispReader.java:897)
	at clojure.lang.LispReader.read(LispReader.java:145)
	... 11 more