Serguey Asael Shinder

Java coding notes: the JVM, and writing software that lasts

Latest

• A merged fix is not a deployed fix
  My Coding Ideas · 03 November 2026
• Netty 4.2.20 and 4.1.140 fix ten advisories, including an mTLS bypass via session resumption
  Coding News · 03 November 2026
• String.valueOf(null) picks the char[] overload and throws instead of returning null
  Java Coding · 03 November 2026
• A pinned version needs its end-of-life date written next to it
  My Coding Ideas · 02 November 2026
• An open-source MCP server gives coding agents NetBeans' Java refactorings
  Coding News · 02 November 2026
• Instant.toString changes length, so sorted strings are not sorted instants
  Java Coding · 02 November 2026
• A memory limit you never set is still a limit
  My Coding Ideas · 31 October 2026
• JetBrains IDEs need their own eMudhra fix; OS updates do not reach them
  Coding News · 31 October 2026
• new HashMap<>(n) resizes before it holds n entries; newHashMap(n) does not
  Java Coding · 31 October 2026
• The riskiest line in an upgrade is a changed default
  My Coding Ideas · 30 October 2026
• OpenJDK: update Java or remove four roots after the eMudhra key compromise
  Coding News · 30 October 2026
• ZonedDateTime.of silently moves a time in the DST gap an hour later
  Java Coding · 30 October 2026