Bad padding in encrypted data

We are observing the following error being reported:

2017-03-21 14:11:33,701 | ERROR | rint Extender: 1 | AAAEncryptionServiceImpl | 254 - org.opendaylight.aaa.encrypt-service - 0.5.0.SNAPSHOT | Failed to decrypt encoded data
javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:989)[sunjce_provider.jar:1.8.0_121]
at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:845)[sunjce_provider.jar:1.8.0_121]
at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:446)[sunjce_provider.jar:1.8.0_121]
at javax.crypto.Cipher.doFinal(Cipher.java:2165)[:1.8.0_121]
at org.opendaylight.aaa.encrypt.AAAEncryptionServiceImpl.decrypt(AAAEncryptionServiceImpl.java:177)
at Proxy30160d6d_0546_4891_a131_16737b6389a1.decrypt(Unknown Source)
at Proxy40769118_0fde_4458_b445_8af7014cf01f.decrypt(Unknown Source)
at org.opendaylight.aaa.cert.utils.KeyStoresDataUtils.decryptOdlKeyStore(KeyStoresDataUtils.java:157)[257:org.opendaylight.aaa.cert:0.5.0.SNAPSHOT]
at org.opendaylight.aaa.cert.utils.KeyStoresDataUtils.decryptSslData(KeyStoresDataUtils.java:167)[257:org.opendaylight.aaa.cert:0.5.0.SNAPSHOT]
at org.opendaylight.aaa.cert.utils.KeyStoresDataUtils.getSslData(KeyStoresDataUtils.java:205)[257:org.opendaylight.aaa.cert:0.5.0.SNAPSHOT]
at org.opendaylight.aaa.cert.impl.AaaCertMdsalProvider.getSslData(AaaCertMdsalProvider.java:175)
at org.opendaylight.aaa.cert.impl.DefaultMdsalSslData.createKeyStores(DefaultMdsalSslData.java:144)
at org.opendaylight.aaa.cert.impl.CertificateManagerService.<init>(CertificateManagerService.java:91)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)[:1.8.0_121]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)[:1.8.0_121]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)[:1.8.0_121]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)[:1.8.0_121]
at org.apache.aries.blueprint.utils.ReflectionUtils.newInstance(ReflectionUtils.java:331)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BeanRecipe.newInstance(BeanRecipe.java:984)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BeanRecipe.getInstanceFromType(BeanRecipe.java:349)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BeanRecipe.getInstance(BeanRecipe.java:282)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate2(BeanRecipe.java:830)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BeanRecipe.internalCreate(BeanRecipe.java:811)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[15:org.apache.aries.blueprint.core:1.6.1]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_121]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.di.RefRecipe.internalCreate(RefRecipe.java:62)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:106)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.ServiceRecipe.createService(ServiceRecipe.java:285)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.ServiceRecipe.internalGetService(ServiceRecipe.java:252)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.ServiceRecipe.internalCreate(ServiceRecipe.java:149)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.di.AbstractRecipe$1.call(AbstractRecipe.java:79)[15:org.apache.aries.blueprint.core:1.6.1]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_121]
at org.apache.aries.blueprint.di.AbstractRecipe.create(AbstractRecipe.java:88)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BlueprintRepository.createInstances(BlueprintRepository.java:255)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BlueprintRepository.createAll(BlueprintRepository.java:186)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.instantiateEagerComponents(BlueprintContainerImpl.java:724)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:411)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:276)[15:org.apache.aries.blueprint.core:1.6.1]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_121]
at org.apache.aries.blueprint.container.ExecutorServiceWrapper.run(ExecutorServiceWrapper.java:106)[15:org.apache.aries.blueprint.core:1.6.1]
at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)[15:org.apache.aries.blueprint.core:1.6.1]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)[:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266)[:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)[:1.8.0_121]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)[:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_121]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_121]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_121]

This looks to be a problem with how we encrypt the data. Otherwise, if this is something that is expected, the severity should be lowered accordingly.