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Log4Shell ( CVE-2021-44228) is a zero-day vulnerability in Log4j, a popular Java logging framework, involving arbitrary code execution. [ 2][ 3] The vulnerability had existed unnoticed since 2013 and was privately disclosed to the Apache Software Foundation, of which Log4j is a project, by Chen Zhaojun of Alibaba Cloud 's security team on 24 ...
The Java Development Kit ( JDK) is a distribution of Java technology by Oracle Corporation. It implements the Java Language Specification ( JLS) and the Java Virtual Machine Specification ( JVMS) and provides the Standard Edition ( SE) of the Java Application Programming Interface ( API ). It is derivative of the community driven OpenJDK which ...
A JAR ("Java archive") file is a package file format typically used to aggregate many Java class files and associated metadata and resources (text, images, etc.) into one file for distribution. [ 4] JAR files are archive files that include a Java-specific manifest file. They are built on the ZIP format and typically have a .jar file extension.
The Java language has undergone several changes since JDK 1.0 as well as numerous additions of classes and packages to the standard library.Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to propose and specify additions and changes to the Java platform.
Bak file. In computing, " .bak " is a filename extension commonly used to signify a backup copy of a file . When a program is about to overwrite an existing file (for example, when the user saves the document they are working on), the program may first make a copy of the existing file, with .bak appended to the filename.
The dependency issue arises when several packages have dependencies on the same shared packages or libraries, but they depend on different and incompatible versions of the shared packages. If the shared package or library can only be installed in a single version, the user may need to address the problem by obtaining newer or older versions of ...
Java package. A Java package organizes Java classes into namespaces, [ 1] providing a unique namespace for each type it contains. Classes in the same package can access each other's package-private and protected members. In general, a package can contain the following kinds of types: classes, interfaces, enumerations, records and annotation types.
Unix-like. The traditional archive format on Unix-like systems, now used mainly for the creation of static libraries . .cpio. application/x-cpio. cpio. Unix-like. RPM files consist of metadata concatenated with (usually) a cpio archive.