Class cast exception occur while updating OpenJDK version from 11.0.2 to 11.0.10

After updating the minor version of OpenJDK , I am getting an error in any API call with HTTPS protocol

The same code was working fine with the older version.

Older version(Working fine):

java version "11.0.2" 2019-01-15 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.2+9-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+9-LTS, mixed mode)

New Version(Not working):

openjdk version "11.0.10" 2021-01-19
OpenJDK Runtime Environment (build 11.0.10+9-Ubuntu-0ubuntu1.18.04)
OpenJDK 64-Bit Server VM (build 11.0.10+9-Ubuntu-0ubuntu1.18.04, mixed mode, sharing)

Error:

javax.net.ssl.SSLException: class org.bouncycastle.jcajce.provider.asymmetric.edec.BCXDHPublicKey cannot be cast to class java.security.interfaces.XECPublicKey (org.bouncycastle.jcajce.provider.asymmetric.edec.BCXDHPublicKey is in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @2e0fa5d3; java.security.interfaces.XECPublicKey is in module java.base of loader 'bootstrap')

Caused by: java.lang.ClassCastException: class org.bouncycastle.jcajce.provider.asymmetric.edec.BCXDHPublicKey cannot be cast to class java.security.interfaces.XECPublicKey (org.bouncycastle.jcajce.provider.asymmetric.edec.BCXDHPublicKey is in unnamed module of loader org.springframework.boot.loader.LaunchedURLClassLoader @2e0fa5d3; java.security.interfaces.XECPublicKey is in module java.base of loader 'bootstrap')
at java.base/sun.security.ssl.XDHKeyExchange$XDHEPossession.<init>(XDHKeyExchange.java:108)
at java.base/sun.security.ssl.NamedGroup$XDHFunctions.createPossession(NamedGroup.java:754)
at java.base/sun.security.ssl.NamedGroup.createPossession(NamedGroup.java:394)
at java.base/sun.security.ssl.SSLKeyExchange$T13KeyAgreement.createPossession(SSLKeyExchange.java:568)
at java.base/sun.security.ssl.SSLKeyExchange.createPossessions(SSLKeyExchange.java:84)
at java.base/sun.security.ssl.KeyShareExtension$CHKeyShareProducer.produce(KeyShareExtension.java:257)
at java.base/sun.security.ssl.SSLExtension.produce(SSLExtension.java:563)
at java.base/sun.security.ssl.SSLExtensions.produce(SSLExtensions.java:253)
at java.base/sun.security.ssl.ClientHello$ClientHelloKickstartProducer.produce(ClientHello.java:650)
at java.base/sun.security.ssl.SSLHandshake.kickstart(SSLHandshake.java:525)
at java.base/sun.security.ssl.ClientHandshakeContext.kickstart(ClientHandshakeContext.java:107)
at java.base/sun.security.ssl.TransportContext.kickstart(TransportContext.java:232)
at java.base/sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:433)
... 11 common frames omitted

I am using URLConnection to establish the new connection with any URL but at the time of connection URL connection.connect().

Any solutions or workaround for this? How can I downgrade the minor version?

Answer

For this type of bouncycastle class not found exception. need to add bouncy castle dependency to your pom.xml or build.gradle file.

add below dependency for maven and gradle.

For Gradle :: implementation group: 'org.bouncycastle', name: 'bcprov-jdk15on', version: '1.68'

For Maven ::

<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcprov-jdk15on</artifactId>
    <version>1.68</version>
</dependency>

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