java - Proguard issues with jar files, how to find the missing jar? -

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when try export apk proguard lot of errors (over 400) similar to:

warning: org.codehaus.jackson.jaxrs.jsonmappingexceptionmapper: can't find superclass or interface javax.ws.rs.ext.exceptionmapper

and 

org.codehaus.jackson.xc.datahandlerjsondeserializer$1: can't find superclass or interface javax.activation.datasource

i using jackson json library, , errors seem related that.

researching error found following proguards faq:

if there unresolved references classes or interfaces, forgot specify essential library. proper processing, libraries referenced code must specified, including java run-time library. specifying libraries, use -libraryjars option.

searching around on found lot of unanswered questions related this, general sense jar file using (in case jackon json) relying on more libraries , need added proguard's config file how.

however, can't figure out how determine jars needed , are. warnings mention lot of different packages such javax.ws.rs.ext, org.joda.time, org.codehaus.stax2, javax.xml.stream, etc.

  1. how determine jars contain packages? example, jar required javax.ws.rs.ext.** classes?
  2. how figure out jars , path used -libraryjars in proguard?

thanks much

edit: should mention using android library project setup. jars in main library project, , actual working project has build paths including jars in library project. don't know if makes difference thought should mention it.

update test, removed jackson far build path , code , proguard completes successfully. questions still remain... correct approach handling these errors?

does android export wizard in eclipse automatically add /lib/ jars proguard or have added manually in proguard config file this: 

-libraryjars c:/project/lib/somjar.jar

i did try jackson 1 didn't make difference. mean have find of jars needed classes mentioned in warnings , add those? in sdk or in java installation?

sorry if these stupid questions, have been trying figure out last couple hours , have no idea do.

thanks again

update again

so more searching, combined benjamin's suggestion, found of missing classes in rt.jar, in jdk's lib folder. ended adding 

-libraryjars  <java.home>/lib/rt.jar

to proguard.cfg file , brought warnings 485 down 204. hey guess that's something... remaining warnings describe classes cannot find @ all. app works fine without running proguard, these classes must somewhere right? or these warnings should use -dontwarn with?

the remaining classes in these packages:

org.joda.time. org.codehaus.stax2. javax.ws.rs.

so need way figure out:

  1. what jars have these classes
  2. where these jars can include them in proguard config file

i've had similar problems proguard , similar errors using osmdroid.jar built ok unobfuscated. jar must have had external dependencies application didn't need. fortunately authors listed jars needed , once downloaded them , told proguard via -libraryjars option, proguard build ok.

re missing jars (which don't need, proguard thinks might!), should find them at:

org.joda.time (the jar's inside zip)

org.codehaus.stax2.

javax.ws.rs.


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