Summary

The Cipher init methods do not list an InvalidParameterException as being thrown in their javadocs, though this is possible if the opmode is not a valid value.

Problem

See Summary (above).

Solution

The javadoc was updated to include InvalidParameterException as being thrown for all Cipher.init methods

Specification

diff --git a/src/java.base/share/classes/javax/crypto/Cipher.java b/src/java.base/share/classes/javax/crypto/Cipher.java
index 5d2f37d63127..2eb2ffe14a4a 100644
--- a/src/java.base/share/classes/javax/crypto/Cipher.java
+++ b/src/java.base/share/classes/javax/crypto/Cipher.java
@@ -1239,6 +1239,8 @@ private static void checkOpmode(int opmode) {
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Key key) throws InvalidKeyException {
         init(opmode, key, JCAUtil.getDefSecureRandom());
@@ -1294,6 +1296,8 @@ public final void init(int opmode, Key key) throws InvalidKeyException {
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Key key, SecureRandom random)
             throws InvalidKeyException
@@ -1379,6 +1383,9 @@ public final void init(int opmode, Key key, SecureRandom random)
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
+     *
      */
     public final void init(int opmode, Key key, AlgorithmParameterSpec params)
             throws InvalidKeyException, InvalidAlgorithmParameterException
@@ -1441,6 +1448,9 @@ public final void init(int opmode, Key key, AlgorithmParameterSpec params)
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
+     *
      */
     public final void init(int opmode, Key key, AlgorithmParameterSpec params,
                            SecureRandom random)
@@ -1522,6 +1532,8 @@ public final void init(int opmode, Key key, AlgorithmParameterSpec params,
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Key key, AlgorithmParameters params)
             throws InvalidKeyException, InvalidAlgorithmParameterException
@@ -1584,6 +1596,8 @@ public final void init(int opmode, Key key, AlgorithmParameters params)
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Key key, AlgorithmParameters params,
                            SecureRandom random)
@@ -1671,6 +1685,8 @@ public final void init(int opmode, Key key, AlgorithmParameters params,
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Certificate certificate)
             throws InvalidKeyException
@@ -1740,6 +1756,8 @@ public final void init(int opmode, Certificate certificate)
      * @throws UnsupportedOperationException if {@code opmode} is
      * {@code WRAP_MODE} or {@code UNWRAP_MODE} but the mode is not implemented
      * by the underlying {@code CipherSpi}
+     * @throws InvalidParameterException if {@code opmode} is not one of the
+     * recognized values
      */
     public final void init(int opmode, Certificate certificate,
                            SecureRandom random)