android Dx warning: Ignoring InnerClasses attribute for an anonymous inner class jar file issue

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i have used lcrypto-j2me-144.jar jar file to encrypt the user name and password in my application it is running fine but when i look into console it is giving me , basically it is j2me jar file, please guide me to get rid of this issue.

Dx warning: Ignoring InnerClasses attribute for an anonymous inner class
(org.bouncycastle.asn1.ASN1Sequence$1) that doesn't come with an
associated EnclosingMethod attribute. This class was probably produced by a
compiler that did not target the modern .class file format. The recommended
solution is to recompile the class from source, using an up-to-date compiler
and without specifying any "-target" type options. The consequence of ignoring
this warning is that reflective operations on this class will incorrectly
indicate that it is *not* an inner class.
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Sveinung Kval Bakken On BEST ANSWER

Just fyi, this can also happen when compiling for java 1.7 and the library have been through proguard, adding this will solve the problem when compiling the library:

-keepattributes EnclosingMethod