1 files changed, 21 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/exception/ExtException.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/exception/ExtException.java
new file mode 100644
index 000000000..ea538d13f
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jce/exception/ExtException.java
@@ -0,0 +1,21 @@
+package org.spongycastle.jce.exception;
+
+/**
+ * 
+ * This is an extended exception. Java before version 1.4 did not offer the
+ * possibility the attach a cause to an exception. The cause of an exception is
+ * the <code>Throwable</code> object which was thrown and caused the
+ * exception. This interface must be implemented by all exceptions to accomplish
+ * this additional functionality.
+ * 
+ */
+public interface ExtException
+{
+
+    /**
+     * Returns the cause of the exception.
+     * 
+     * @return The cause of the exception.
+     */
+    Throwable getCause();
+}