Upgraded Clojure to 1.8 and now I see this java.lang.NoClassDefFoundError for HeaderMap

[JMacLulich]

Hi Guys,

I'm trying to figure out what the has caused this error to appear in my project after bumping up the version of Clojure from 1.7 to 1.8 in my project.

I now get this error whenever I try and require the clj-http package.

Caused by: java.lang.NoClassDefFoundError: IllegalName: compile__stub.clj_http.headers.clj-http.headers/HeaderMap

I think its got something to do with interactions with clj-oauth or some other OAuth library I'm using that is importing an older version of clj-http. clj-oauth for instance includes clj-http v2.0.2.

Has anyone seen this error before when updating their version of Clojure?

Thanks, Jason.

[JMacLulich]

Just to expand on the error above, I get this:

1. Caused by java.lang.NoClassDefFoundError
   IllegalName:
   compile__stub.clj_http.headers.clj-http.headers/HeaderMap

[dakrone]

Sounds like it might be something that causing bad dependencies? What does lein deps :tree spit out?

[s4s0l]

Same for me, using gradle not lein but effect as described above:

+--- org.clojure:clojure:1.8.0
\--- clj-http:clj-http:2.3.0
     +--- org.apache.httpcomponents:httpcore:4.4.5
     +--- org.apache.httpcomponents:httpclient:4.5.2
     |    +--- org.apache.httpcomponents:httpcore:4.4.4 -> 4.4.5
     |    +--- commons-logging:commons-logging:1.2
     |    \--- commons-codec:commons-codec:1.9 -> 1.10
     +--- org.apache.httpcomponents:httpmime:4.5.2
     |    \--- org.apache.httpcomponents:httpclient:4.5.2 (*)
     +--- commons-codec:commons-codec:1.10
     +--- commons-io:commons-io:2.5
     +--- slingshot:slingshot:0.12.2
     \--- potemkin:potemkin:0.4.3
          +--- clj-tuple:clj-tuple:0.2.2
          \--- riddley:riddley:0.1.12

[dakrone]

For the users still seeing this, do you still see it upon upgrading to clj-http in the 3.x series?

[jiacai2050]

3.9.0 still have this issue

Caused by: java.lang.NoClassDefFoundError: IllegalName: compile__stub.clj_http.headers.clj-http.headers/HeaderMap
	at java.lang.ClassLoader.preDefineClass(ClassLoader.java:654)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:761)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:642)
	at clojure.lang.DynamicClassLoader.defineClass(DynamicClassLoader.java:46)
	at clojure.lang.Compiler$NewInstanceExpr.compileStub(Compiler.java:7903)
	at clojure.lang.Compiler$NewInstanceExpr.build(Compiler.java:7768)
	at clojure.lang.Compiler$NewInstanceExpr$DeftypeParser.parse(Compiler.java:7678)
	at clojure.lang.Compiler.analyzeSeq(Compiler.java:6868)

[jiacai2050]

After digging into this issue, I have found the root cause:

• https://dev.clojure.org/jira/browse/CLJ-1208

Briefly speaking, clojure 1.8's change affect potemkin, and is already fixed in clj-commons/potemkin#40.
clj-http(3.9.0) depends on potemkin 0.4.5, which contains the fix, but if your dependencies contains older version of potemkin, then you will probably see this issue.

I'm not sure which is the earliest version contains the fix, but 0.4.5 surely do.

[JMacLulich]

Thanks for the update guys, I have to admit i did loose track of this ticket after filing it, but appreciate the continued updates over the years.

[jiacai2050]

@JMacLulich Close now?

[dakrone]

Sounds like this is resolved, so I'm going to close this for now