Java SE 17 一般情報および潜在的な問題

この規則は、Java SE 17 での変更に関する情報へのリンク、および、Java SE 11 以降にリリースされた前の非 LTS (長期間サポート) Java バージョンへのリンクを含んでいます。各 Java バージョンで、リンクはリリース・ノートに組み込まれ、問題を引き起こす可能性があるが WebSphere Application Migration Toolkit では検出されない特定の変更にも組み込まれます。詳しい追加情報が Oracle JDK Migration Guide にあります。

Java SE 17:

• リリース・ノート
• Deprecation of 3DES and RC4 in Kerberos
• URL FTP Protocol Handler: IPv4 Address Validation in Passive Mode
• Collections.unmodifiable* Methods Are Idempotent for Their Corresponding Collection
• ISO 639 Language Codes for Hebrew/Indonesian/Yiddish
• Enable XML Signature Secure Validation Mode by Default
• Disable SHA-1 XML signatures
• JEP 306: Restore Always-Strict Floating-Point Semantics

Java SE 16:

• リリース・ノート
• Deprecated Tracing Flags are Obsolete and Must be Replaced with Unified Logging Equivalents
• Parts of the Signal-Chaining API are Deprecated
• Support Supplementary Characters in String Case Insensitive Operations
• Proxy Classes Are Not Open for Reflective Access
• NullPointerException Not Thrown When First Argument to Path.of or Paths.get is null
• Argument Index of Zero or Unrepresentable by int Throws IllegalFormatException
• Removal of java.awt.PeerFixer
• Removed Root Certificates with 1024-bit Keys
• Disable TLS 1.0 and 1.1
• Improve Encoding of TLS Application-Layer Protocol Negotiation (ALPN) Values
• Upgraded the Default PKCS12 Encryption and MAC Algorithms

Java SE 15:

• リリース・ノート
• Specialized Implementations of TreeMap Methods
• Case Insensitive Matching Doesn't Work Correctly for Some Character Classes
• Support Monetary Grouping Separator in DecimalFormat/DecimalFormatSymbols
• Support for canonicalize in krb5.conf
• Disabled Biased-locking and Deprecated Biased-locking Flags

Java SE 14:

• リリース・ノート
• Accounting Currency Format Support
• Remove the concurrent mark and sew (CMS) Garbage collector
• Thread.countStackFrames Changed to Unconditionally Throw UnsupportedOperationException
• MethodTypefromMethodDescriptorString Requires "getClassLoader" Permission
• New Checks on Trust Anchor Certificates
• Removed SSLv2Hello and SSLv3 From Default Enabled TLS Protocols
• Default ErrorListener No Longer Reports Warnings and Errors to the Console

Java SE 13:

• リリース・ノート
• Removal of art.tookit system property
• Duplicated RSA Services No Longer Supported by SunJSSE Provider
• Improved Handling of the "Class-Path" JAR Manifest Attribute
• Change to Default Implementation of SocketImpl Methods supportedOptions, getOption, and setOption
• JEP 353 Reimplement the Legacy Socket API

Java SE 12:

• リリース・ノート
• Better HTTP Redirection Support
• Disabled TLS anon and NULL Cipher suites
• Disabled All DES TLS Cipher Suites