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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 Google Groups by HM, 1 year ago
class "oracle.ewt.lwAWT.LWComponent"'s signer information does not match signer information of other classes in the same package
via Oracle Community by 29834, 2 years ago
class "oracle.ewt.lwAWT.LWComponent"'s signer information does not match signer information of other classes in the same package
via Oracle Community by Kstore, 2 years ago
class "oracle.ewt.lwAWT.LWComponent"'s signer information does not match signer information of other classes in the same package
via Oracle Community by 248185, 2 years ago
class "oracle.ewt.lwAWT.LWComponent"'s signer information does not match signer information of other classes in the same package
via Oracle Community by user592596, 1 year ago
class "oracle.forms.fd.SocketServer"'s signer information does not match signer information of other classes in the same package
via Oracle Community by 843798, 2 years ago
class "com.documentum.wc.env.DwConfig"'s signer information does not match signer information of other classes in the same package
java.lang.SecurityException: class "oracle.ewt.lwAWT.LWComponent"'ssigner information does not match signer information of other classes inthe same package at java.lang.ClassLoader.checkCerts(ClassLoader.java:522) at java.lang.ClassLoader.defineClass(ClassLoader.java:485) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:128) at sun.plugin.security.PluginClassLoader.findClass(PluginClassLoader.java:252) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:108) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.Class.newInstance0(Native Method) at java.lang.Class.newInstance(Class.java:237) at sun.applet.AppletPanel.createApplet(AppletPanel.java:579) at sun.plugin.AppletViewer.createApplet(AppletViewer.java:1178) at sun.applet.AppletPanel.runLoader(AppletPanel.java:515) at sun.applet.AppletPanel.run(AppletPanel.java:293) at sun.plugin.navig.motif.MotifAppletViewer.maf_run(MotifAppletViewer.java:127) at sun.plugin.navig.motif.MotifAppletViewer.run(MotifAppletViewer.java:123) at java.lang.Thread.run(Thread.java:484)