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- These downloads are intended for established users, and contain the latest IBM fixes and Oracle updates to the Java SE application programming interfaces (APIs). To take advantage of new capabilities in the SDK, users are encouraged to move to the latest version.
- The place to collaborate on an open-source implementation of the Java Platform, Standard Edition, and related projects. (Learn more.) Download and install the open-source JDK for most popular Linux distributions.
- การติดตั้ง Java SDK บนเครื่อง Mac การปรับแต่ง (Install Java SDK and Config) ในปัจุุบันคนใช้เครื่อง Mac ในการเขียนโปรแกรมกันมากขึ้น ทั้งเขียนโปรแกรมบน Mac และ iOS / iPhone หรือจะ.
Installation of the 64-bit JDK on Mac Platforms. When you download the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. The JavaFX SDK and Runtime are also installed and integrated into the standard JDK directory structure.
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Java Se 6 Download Mac
The full version string for this update release is 11.0.9+10 (where '+' means 'build'). The version number is 11.0.9.
Complete release notes for Java 11 can be found here.
IANA Data 2020a
JDK 11.0.9 contains IANA time zone data version 2020a. For more information, refer to Timezone Data Versions in the JRE Software.
Security Baselines
The security baselines for the Java Runtime Environment (JRE) at the time of the release of JDK 11.0.7 are specified in the following table:
JRE Family Version = JRE Security Baseline (Full Version String)
- 11 = 11.0.9+7
- 8 = 1.8.0_271-b09
Oracle JDK Expiration Date
Oracle recommends that the JDK is updated with each Critical Patch Update (CPU). In order to determine if a release is the latest, the following Security Baseline page can be used to determine which is the latest version for each release family.
Critical patch updates, which contain security vulnerability fixes, are announced one year in advance on Critical Patch Updates, Security Alerts and Bulletins. It is not recommended that this JDK (version 11.0.9) be used after the next critical patch update scheduled for January 19, 2021.
What's New:
security-libs/java.security
➜ Weak Named Curves in TLS, CertPath, and Signed JAR Disabled by Default
- Weak named curves are disabled by default by adding them to the following disabledAlgorithms security properties: jdk.tls.disabledAlgorithms, jdk.certpath.disabledAlgorithms, and jdk.jar.disabledAlgorithms. The named curves are listed below.
- With 47 weak named curves to be disabled, adding individual named curves to each disabledAlgorithms property would be overwhelming. To relieve this, a new security property, jdk.disabled.namedCurves, is implemented that can list the named curves common to all of the disabledAlgorithms properties. To use the new property in the disabledAlgorithms properties, precede the full property name with the keyword include. Users can still add individual named curves to disabledAlgorithms properties separate from this new property. No other properties can be included in the disabledAlgorithms properties.
- To restore the named curves, remove the include jdk.disabled.namedCurves either from specific or from all disabledAlgorithms security properties. To restore one or more curves, remove the specific named curve(s) from the jdk.disabled.namedCurves property.
- Curves that are disabled through jdk.disabled.namedCurves include the following: secp112r1, secp112r2, secp128r1, secp128r2, secp160k1, secp160r1, secp160r2, secp192k1, secp192r1, secp224k1, secp224r1, secp256k1, sect113r1, sect113r2, sect131r1, sect131r2, sect163k1, sect163r1, sect163r2, sect193r1, sect193r2, sect233k1, sect233r1, sect239k1, sect283k1, sect283r1, sect409k1, sect409r1, sect571k1, sect571r1, X9.62 c2tnb191v1, X9.62 c2tnb191v2, X9.62 c2tnb191v3, X9.62 c2tnb239v1, X9.62 c2tnb239v2, X9.62 c2tnb239v3, X9.62 c2tnb359v1, X9.62 c2tnb431r1, X9.62 prime192v2, X9.62 prime192v3, X9.62 prime239v1, X9.62 prime239v2, X9.62 prime239v3, brainpoolP256r1, brainpoolP320r1, brainpoolP384r1, brainpoolP512r1
- Curves that remain enabled are: secp256r1, secp384r1, secp521r1, X25519, X448. See JDK-8233228
security-libs/org.ietf.jgss:krb5
➜ Support for Kerberos Cross-Realm Referrals (RFC 6806)
- The Kerberos client has been enhanced with the support of principal name canonicalization and cross-realm referrals, as defined by the RFC 6806 protocol extension.
- As a result of this new feature, the Kerberos client can take advantage of more dynamic environment configurations and does not necessarily need to know (in advance) how to reach the realm of a target principal (user or service).
- Support is enabled by default and 5 is the maximum number of referral hops allowed. To turn it off, set the sun.security.krb5.disableReferrals security or system property to false. To configure a custom maximum number of referral hops, set the sun.security.krb5.maxReferrals security or system property to any positive value.
Previous versions:
Recent Java JDK news
- Python also gained some 2.2 million developers in the past year and came in second-place
- 150 votesJava allows you to play online games, chat with people around the world, calculate your mortgage interest, and view images in 3D, just to name a few. This new version is considered a Critical Patch Update.
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- 25 votesJava SE 15.0.1 is the latest release of Java SE Platform. Oracle strongly recommends that all Java SE users upgrade to this release.
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- 115 votesThe Java Platform lets you develop and deploy Java applications on desktops and servers, as well as in today's demanding embedded environments.
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General
- General Information (file structure, classpath, how classes are found, changes)
- (enhancements in JDK 7)
Standard JDK Tools and Utilities
- Basic Tools (appletviewer, apt, extcheck, jar, java, javac, javadoc, javah, javap, jdb)
- Security Tools (keytool, jarsigner, policytool, kinit, klist, ktab)
- Internationalization Tools (native2ascii)
- Remote Method Invocation (RMI) Tools (rmic, rmiregistry, rmid, serialver)
- Java IDL and RMI-IIOP Tools (tnameserv, idlj, orbd, servertool)
- Java Deployment Tools (javafxpackager, pack200, unpack200)
- Java Web Start Tools (javaws)
- Java Troubleshooting, Profiling, Monitoring and Management Tools (jcmd, jconsole, jmc, jvisualvm)
- Java Web Services Tools (schemagen, wsgen, wsimport, xjc)
Experimental JDK Tools and Utilities
NOTE - The tools described in this section are unsupported and experimental in nature and should be used with that in mind. They might not be available in future JDK versions.
- Monitoring Tools (jps, jstat, jstatd)
- Troubleshooting Tools (jinfo, jhat, jmap, jsadebugd, jstack)
- Scripting Tools (jrunscript)
Troubleshooting Documentation
- Java™ SE Troubleshooting web site (tools, options, and other items for use in analyzing problems)
NOTE: Some tools have separate reference pages for Windows, Linux and Solaris to accommodate minor differences in configuration and usage (for example, the character used to specify directory separators may be different). Users of the OS X operating system should refer to the Linux/Solaris pages.
General Information
The following documents contain important information you will need to know to get the most out of the JDK tools.
Document Type | Platform |
---|---|
JDK File Structure | [Solaris] [Linux] [Windows] |
Setting the Classpath | [Solaris and Linux] [Windows] |
How Classes are Found | [Solaris, Linux and Windows] |
Enhancements
The man page for each tool reflects the latest behavior for that tool, but the following page details the tools changes specific to a release.
Basic Tools
These tools are the foundation of the JDK. They are the tools you use to create and build applications.
Tool Name | Brief Description | Links to Reference Pages |
---|---|---|
appletviewer | Run and debug applets without a web browser. | [Solaris and Linux] [Windows] |
apt | Annotation processing tool. See Annotation Processing Tool for program annotation processing. | [Solaris, Linux, and Windows] |
extcheck | Utility to detect Jar conflicts. | [Solaris and Linux] [Windows] |
jar | Create and manage Java Archive (JAR) files. See Java Archive Files page for the JAR specification. | [Solaris and Linux] [Windows] |
java | The launcher for Java applications. In this release, a single launcher is used both for development and deployment. The old deployment launcher, jre, is no longer provided. | [Solaris and Linux] [Windows] |
javac | The compiler for the Java programming language. | [Solaris and Linux] [Windows] |
javadoc | API documentation generator. See Javadoc Tool page for doclet and taglet APIs. | [Solaris and Linux] [Windows] |
javah | C header and stub generator. Used to write native methods. | [Solaris and Linux] [Windows] |
javap | Class file disassembler | [Solaris and Linux] [Windows] |
jdb | The Java Debugger. See JPDA for the debugger architecture specifications. | [Solaris and Linux] [Windows] |
Security Tools
These security tools help you set security policies on your system and create applications that can work within the scope of security policies set at remote sites.Tool Name | Brief Description | Links to Reference Pages |
---|---|---|
keytool | Manage keystores and certificates. | [Solaris and Linux] [Windows] |
jarsigner | Generate and verify JAR signatures. | [Solaris and Linux] [Windows] |
policytool | GUI tool for managing policy files. | [Solaris and Linux] [Windows] |
These security tools help you obtain, list, and manage Kerberos tickets.
Tool Name | Brief Description | Links to Reference Pages |
---|---|---|
kinit | Tool for obtaining Kerberos v5 tickets. Equivalent functionality is available on the Solaris operating system via the kinit tool. For example, for Solaris 11, see the kinit reference page. | [Windows] |
klist | Command-line tool to list entries in credential cache and key tab. Equivalent functionality is available on the Solaris operating system via the klist tool. For example, for Solaris 11, see the klist reference page. | [Windows] |
ktab | Command-line tool to help the user manage entries in the key table. Equivalent functionality is available on the Solaris operating system via the kadmin tool. For example, for Solaris 11, see the kadmin reference page. | [Windows] |
Internationalization Tools
This tool helps to create localizable applications.Tool Name | Brief Description | Links to Reference Pages |
---|---|---|
native2ascii | Convert text to Unicode Latin-1. | [Solaris and Linux] [Windows] |
Remote Method Invocation (RMI) Tools
These tools help to create applications that interact over the Web or other network.Tool Name | Brief Description | Links to Reference Pages |
---|---|---|
rmic | Generate stubs and skeletons for remote objects. | [Solaris and Linux] [Windows] |
rmiregistry | Remote object registry service. | [Solaris and Linux] [Windows] |
rmid | RMI activation system daemon. | [Solaris and Linux] [Windows] |
serialver | Return class serialVersionUID. | [Solaris and Linux] [Windows] |
Java IDL and RMI-IIOP Tools
These tools are used when creating applications that use OMG-standard IDL and CORBA/IIOP.Tool Name | Brief Description |
---|---|
tnameserv | Provides access to the naming service. |
idlj | Generates .java files that map an OMG IDL interface and enable an application written in the Java programming language to use CORBA functionality. |
orbd | Provides support for clients to transparently locate and invoke persistent objects on servers in the CORBA environment. ORBD is used instead of the Transient Naming Service, tnameserv. ORBD includes both a Transient Naming Service and a Persistent Naming Service. The orbd tool incorporates the functionality of a Server Manager, an Interoperable Naming Service, and a Bootstrap Name Server. When used in conjunction with the servertool, the Server Manager locates, registers, and activates a server when a client wants to access the server. |
servertool | Provides ease-of-use interface for the application programmers to register, unregister, startup, and shutdown a server. |
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Java Deployment Tools
Download Java Se Sdk Mac Download
Utilities for use in conjunction with deployment of java applications and applets on the web.Tool Name | Brief Description |
---|---|
javafxpackager | Packages JavaFX applications for deployment. See Deploying JavaFX Applications for more information. |
pack200 | Transforms a JAR file into a compressed pack200 file using the Java gzip compressor. The compressed packed files are highly compressed JARs, which can be directly deployed, saving bandwidth and reducing download time. |
unpack200 | Transforms a packed file produced by pack200 into a JAR file. |
Java Web Start Tools
Utilities for use in conjunction with Java Web Start.Java 8 Sdk Download
Tool Name | Brief Description |
---|---|
javaws | Command line tool for launching Java Web Start and setting various options. See Java Web Start Guide for more information. |
Java Troubleshooting, Profiling, Monitoring and Management Tools
Tool Name | Brief Description | |
---|---|---|
jcmd | JVM Diagnostic Commands tool - sends diagnostic command requests to a running Java Virtual Machine. | [Solaris and Linux] [Windows] |
jconsole | A JMX-compliant graphical tool for monitoring a Java virtual machine. It can monitor both local and remote JVMs. It can also monitor and manage an application. See Monitoring and Management for the Java Platform for more information. | |
jmc | The Java Mission Control (JMC) client includes tools to monitor and manage your Java application without introducing the performance overhead normally associated with these types of tools. | [Solaris and Linux] [Windows] |
jvisualvm | A graphical tool that provides detailed information about the Java technology-based applications (Java applications) while they are running in a Java Virtual Machine. Java VisualVM provides memory and CPU profiling, heap dump analysis, memory leak detection, access to MBeans, and garbage collection. See Java VisualVM for more information. |
Java Web Services Tools
Tool Name | Brief Description |
---|---|
schemagen | Schema generator for Java Architecture for XML Binding. |
wsgen | Tool to generate JAX-WS portable artifacts. |
wsimport | Tool to generate JAX-WS portable artifacts. |
xjc | Binding compiler for Java Architecture for XML Binding. |
Monitoring Tools
You can use the following tools to monitor JVM performance statistics. The tools described in this section are unsupported and experimental, and should be used with that in mind. They may not be available in future JDK versions.
These tools are supported on all platforms except Windows 98 and Windows ME.
Tool Name | Brief Description |
---|---|
jps | Experimental: JVM Process Status Tool - Lists instrumented HotSpot Java virtual machines on a target system. |
jstat | Experimental: JVM Statistics Monitoring Tool - Attaches to an instrumented HotSpot Java virtual machine and collects and logs performance statistics as specified by the command line options. |
jstatd | Experimental: JVM jstat Daemon - Launches an RMI server application that monitors for the creation and termination of instrumented HotSpot Java virtual machines and provides a interface to allow remote monitoring tools to attach to Java virtual machines running on the local system. |
Troubleshooting Tools
The following tools can be used for specific troubleshooting tasks. The tools described in this section are unsupported and experimental in nature and should be used with that in mind. They may not be available in future JDK versions.Some of these tools are not currently available on Windows platforms.
Java Jdk Mac Os
Tool Name | Brief Description |
---|---|
jinfo | Experimental - Configuration Info for Java - Prints configuration information for a given process or core file or a remote debug server. |
jhat | Experimental - Heap Dump Browser - Starts a web server on a heap dump file (for example, produced by jmap -dump), allowing the heap to be browsed. |
jmap | Experimental - Memory Map for Java - Prints shared object memory maps or heap memory details of a given process or core file or a remote debug server. |
jsadebugd | Experimental - Serviceability Agent Debug Daemon for Java - Attaches to a process or core file and acts as a debug server. |
jstack | Experimental - Stack Trace for Java - Prints a stack trace of threads for a given process or core file or remote debug server. |
Refer to the Java™ SE Troubleshooting web site for descriptions of tools, options, and other information to use in analyzing problems. The documents at this site contain suggestions about what to try before submitting a bug report and what data to collect for a report.
Scripting Tools
The following tool can be used to run scripts that interact with the Java platform. This tool is unsupported and experimental in nature and should be used with that in mind. It might not be available in future JDK versions.Tool Name | Brief Description |
---|---|
jrunscript | Experimental - Script shell for Java - Runs a script. |
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