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  • Jdk-8182746 Java 8u121 On Linux Intermittently Returns Null For Mac
    카테고리 없음 2020. 4. 10. 14:44

    After updating from Java 8u101 to Java 8u121, Java application running with Tomcat shows intermittent failure getting MAC address. The application connects to other apps on other systems by using MAC address to resolve IP address for connection. Intermittently, a thread will show a null MAC address is returned and Tomcat log reports: CRITICAL ERROR: ip address is not assigned to a valid ethernet interface. The problem does not occur with single CPU/thread. It occurs with multiple CPUs/threads, under load.

    The problem is not seen on Windows or MacOSX. The problem is seen only on Linux systems using 8u121 or 8u131. The problem does not occur when Java 8u101 is used on the same systems with the same application version. Java 8u121 reproduces the issue at a lesser rate than 8u131. The problem takes about 50TPS on 8u121, but needs only a couple threads on 8u131 to reproduce it.

    JDK 的內容: 開發工具 (在 bin / 子目錄)將幫助您開發,執行,調試和編寫以 JavaTM 編程語言編寫的程序的工具和實用程序。 Runtime Environment (在 jre / 子目錄中)供 JDK 使用的 Java 運行時環境(JRE)的實現。 JRE 包括一個 Java 虛擬機(JVM),類庫和其他支持執行用 Java 編程語言編寫的程序的文件. 附加庫 (在 lib / 子目錄中)開發工具需要的附加類庫和支持文件.

    Jdk-8182746 Java 8u121 On Linux Intermittently Returns Null For Mac

    Jdk-8182746 Java 8u121 On Linux Intermittently Returns Null For Mac Download

    Demo 小應用程序和應用程序 (在演示 / 子目錄中)Java 平台編程的示例,包括源代碼。這些包括使用 Swing 和其他 Java 基礎類的示例,以及 Java 平台調試器體系結構. 示例代碼 (在示例子目錄中)帶有源代碼的樣本,用於某些 Java API 的編程。 C 頭文件 (在 include / 子目錄中)支持使用 Java 本地接口,JVM 工具接口和 Java 平台的其他功能進行本機代碼編程的頭文件. 源代碼 (在 src.zip 中)構成 Java 核心 API 的所有類的 Java 編程語言源文件(即 java。.,javax。. 和一些 org。. 包的源文件,但不包括 com.sun。. 包)。此源代碼僅供參考,旨在幫助開發人員學習和使用 Java 編程語言。這些文件不包括平台特定的實現代碼,不能用於重建類庫。要提取這些文件,請使用任何常用的 zip 實用程序。或者,您可以在 JDK 的 bin / 目錄中使用 Jar 實用程序:jar xvf src.zip. 也可以:下載適用於 Mac 的 Java Development Kit ScreenShot.

    Jdk-8182746 Java 8u121 On Linux Intermittently Returns Null For Mac Mac

    軟體資訊 檔案版本 Java JDK 8 Update 112 (32-bit) 檔案名稱 jdk-8u112-windows-i586.exe 檔案大小 188.99 MB 系統 Windows Vista / Windows 7 / Windows 8 / Windows 10 軟體類型 免費軟體 作者 官網 更新日期 更新日誌 What's new in this version: CHANGES: security-libs/java.security: - SunPKCS11 Provider no longer offering SecureRandom by default - SecureRandom.PKCS11 from the SunPKCS11 Provider is disabled by default on Solaris because the native PKCS11 implementation has poor performance and is not recommended. If your application requires SecureRandom.PKCS11, you can re-enable it by removing 'SecureRandom' from the disabledMechanisms list in conf/security/sunpkcs11-solaris.cfg - Performance improvements have also been made in the java.security.SecureRandom class. Improvements in the JDK implementation have allowed for synchronization to be removed from the java.security.SecureRandom.nextBytes(byte bytes) method.

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