![]() For an application with hard-coded unsupported cipher suites, compatibility issues might exist. TLSv1.3 contains different cipher suites than earlier TLS protocol versions. For example, if you only allow Digital Signature Algorithm (DSA) for signature verification in your configurations, you will experience incompatibility issues when using the TLSv1.3 protocol.Ī client that uses DSA certificates for client authentication causes compatibility issues with TLSv1.3. TLSv1.3 does not support certain algorithms in the signature_algorithms_cert extension. For more information about this configuration, see JDK-8208526. You can use the system property to configure TLSv1.3 to use a full-duplex-close policy. TLSv1.3 uses a half-duplex-close policy whereas TLSv1.2 uses a full-duplex-close policy. This is the same as the existing behaviour for SoftReference and WeakReference objects. The Red Hat build of OpenJDK 8.0.352 release changes the behavior of PhantomReference objects, so that they are cleared before being enqueued in any associated queues. After the Reference object is enqueued, code that expects the return value of .get() to be non-null might throw a NullPointerException. When application code calls the .enqueue method, this method clears the Referent before it adds the object to the registered queue. This ensures the new Reference object contains referent and reference queues that are identical to the target Reference object.įor the Red Hat build of OpenJDK 8.0.352 release, the .enqueue method changes behavior. If you want to copy an existing Reference object, you must use the constructor of the appropriate Reference subclass to create a Reference object. If you attempt to clone a reference object, the ::clone method throws a CloneNotSupportedException message. Reference object changes and configurationsįrom Red Hat build of OpenJDK 8.0.352 onward, you can no longer clone Reference objects. Review the following release notes to understand new features and feature enhancements that the Red Hat build of OpenJDK 8.0.352 release provides: Red Hat build of OpenJDK new features and enhancements Red Hat build of OpenJDK on Microsoft Windows uses the latest available CA certificate from RHEL.įor all the other changes and security fixes, see OpenJDK 8u352 Released. Red Hat build of OpenJDK on Microsoft Windows includes the latest available timezone data from RHEL. Red Hat build of OpenJDK on RHEL uses system-wide CA certificates. Red Hat build of OpenJDK on RHEL uses system-wide timezone data files as a source for timezone information. ![]() The src.zip file includes the source for all the JAR libraries shipped with Red Hat build of OpenJDK. This change does not apply to Red Hat build of OpenJDK builds for Microsoft Windows. RHEL also dynamically links against Harfbuzz and Freetype for font rendering and management. ![]() Red Hat build of OpenJDK on RHEL dynamically links against native libraries such as zlib for archive format support and libjpeg-turbo, libpng, and giflib for image support. You can set different security profiles to balance safety and compatibility. These configuration components are used by the Transport Layer Security (TLS) encryption protocol, the certificate path validation, and any signed JARs. Red Hat build of OpenJDK 8 obtains the list of enabled cryptographic algorithms and key size constraints from the RHEL system configuration. This change does not apply to Red Hat build of OpenJDK builds for Microsoft Windows.Ĭryptographic policy support. Red Hat build of OpenJDK 8 automatically detects whether RHEL is in FIPS mode and automatically configures Red Hat build of OpenJDK 8 to operate in that mode.
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