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    Two or more classes in the same package with different signature data, especially when they come from different JARs that have signatures signed with different certificates. Make sure all JARs are signed using the same certificate.

Solutions on the web

via chemaxon.com by Unknown author, 1 year ago
class "chemaxon.marvin.modules.SmilesImport"'s signer information does not match signer information of other classes in the same package
via Stack Overflow by Maneendhar Tata
, 2 years ago
class "org.bouncycastle.util.Memoable"'s signer information does not match signer information of other classes in the same package
via wordpress.com by Unknown author, 2 years ago
class “org.apache.commons.collections.ArrayStack”‘s signer information does not match signer information of other classes in the same package
via Icesoft by Mona, 1 year ago
class "org.apache.commons.fileupload.FileUploadBase$FileSizeLimitExceededException"'s signer information does not match signer information of other classes in the same package
via Oracle Community by 659161, 1 year ago
class "oracle.forms.fd.JCalendar"'s signer information does not match signer information of other classes in the same package
java.lang.SecurityException: class "chemaxon.marvin.modules.SmilesImport"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(ClassLoader.java:775) at java.lang.ClassLoader.preDefineClass(ClassLoader.java:487) at java.lang.ClassLoader.defineClass(ClassLoader.java:614) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1955) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:945) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1411) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1275) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1955) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:945) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1411) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1275) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at chemaxon.jchem.db.JChemSearch.init(JChemSearch.java:2628) at chemaxon.jchem.db.JChemSearch.search1(JChemSearch.java:2016) at chemaxon.jchem.db.JChemSearch.search(JChemSearch.java:1916) at chemaxon.jchem.db.JChemSearch.access$1200(JChemSearch.java:75) at chemaxon.jchem.db.JChemSearch$SearchThread.run(JChemSearch.java:384)