Java Micro Edition (ME) 8 Deep Dive
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Java Micro Edition (ME) 8 Deep Dive

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Technical deep dive on Java Micro Edition (ME) 8 (apologies for the partially messed up colors and slides - SlideShare is doing that during the conversion process)

Technical deep dive on Java Micro Edition (ME) 8 (apologies for the partially messed up colors and slides - SlideShare is doing that during the conversion process)

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Java Micro Edition (ME) 8 Deep Dive Java Micro Edition (ME) 8 Deep Dive Presentation Transcript

  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.1
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.2
  • Java Micro Edition (ME) 8 Deep Dive Mar 28, 2014 Terrence Barr Senior Technologist & Principal Product Manager Java Embedded and Internet of Things Oracle
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.4 Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle.
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.5 Agenda §  The Rise of the Internet of Things §  Java ME 8: Background and Overview §  Java ME Connected Limited Device Configuration (CLDC) 8 §  Java ME Embedded Profile (MEEP) 8 §  Java ME 8 Security §  Device I/O API (DIO) §  Oracle Java ME Embedded 8 Product Information §  Conclusion & Resources Note: Java ME 8 is not final yet and information presented here is subject to change.
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.6 The Rise of the Internet of Things
  • x86 Architecture/ Windows OS Standards Based Hardware & Software Proprietary Hardware & Software 1960 - 1985 Host Era 2006 - 2025 Internet of Things 1985-2006 PC Era The 3rd IT Revolution
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.8 IoT Everything Huge Scale Fragmentation Access Privacy Security Cost Time-to- Market Communication Interoperability Resources Lifecycle Reliability Power Management Data Flow Analytics TouchesChallenges
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.9 HealthcareIndustrial Automation Copyright © 2013, Oracle and/or its affiliates. All rights reserved.9 Home Automation Smart Utilities Automotive Telematics Java Embedded Enables New IoT Services
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.10 The Path to New Services Always-on connected to variety of sensors and running multiple software applications Generates high-frequency Fast Data analysis for instant decision making and automation of information flows Enables customer service differentiation from automated, real- time responsiveness ResponsivenessBig DataIntelligent Devices Fueling New Services
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.11 Need for a Horizontal Services Platform Stop reinventing the plumbing! Your Value-Add Shift from proprietary point solutions to horizontal platforms and infrastructure
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.12 The Full Picture: IoT is End-to-End Data & Control Flow, Security, Management, Integration Event Processing Data Management Big Data Analytics Integration Spatial/GIS CRM Service Billing Industry Solutions Intelligent System Application Portal UI Sensing Device Concentrator or Gateway Network Cloud Intelligent Systems Foundation Supporting Applications Other Data Generating Sources such as Social Media Fixed Internet 2G, 3G, LTE, Satellite NFC, Bluetooth, Zigbee, WLAN, DASH7 Fixed Internet Internet Gateway Network Abstraction Protocol Gateway Service Bus Data Sync, Control, Feedback and Updates Data Encryption, Device and Application Identity and Access Management Base Stations Switches Management Billing Provisioning Scalable Resilient Secure Standards Based Managed Integrated Value-Add Services External Systems Industry Specific core solutions and external/customer systems Any Device from Cameras, Smart Cards, Medical Equipment, Consumer Goods, Vehicles, Containers, Buildings.
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.13 Oracle’s Internet of Things Platform ENGINEERED SYSTEMS, SERVERS & STORAGE EVENT PROCESSING JAVA EMBEDDED SUITE INDUSTRY APPLICATIONS PARTNER INDUSTRY APPLICATIONS BUSINESS APPLICATIONS
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.14 Why Java for IoT? Software Updatability & Extended Lifecycle Large Ecosystem & Pool of Resources Reduced Time-to- Market, Reduced Risk Software Portability & Increased Reach Robust & Proven Technology Standards-based, Trusted Vendor Faster Innovation & Competitive Advantage End-to-end Development Platform Ease of Reuse and Back-End Integration
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.15 Drivers behind Java ME 8 Requirement Description Modern embedded software platform •  Robust, secure, cross-platform software execution environment •  Modular software system and remote operation extends product value and reduced cost/risk •  Leverage feature-rich platform and focus on your value-add Efficient software development and deployment model •  Address the challenges of traditional embedded development •  Accelerate time-to-market •  Enable software portability and economies of scale •  Leverage large ecosystem of expertise and partners Increased market reach •  Platform “right-sizing” allows to address wide range of use cases and target markets with a single software model, from low- footprint devices to more powerful systems Open, based on standards, interoperable •  Avoid vendor lock-in •  Participate in and benefit from technology innovation •  Integratable with many industry standards Meeting the Challenges of the Internet of Things
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.16 Java ME 8: Background and Overview
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.17 Unifying the Java Ecosystem for Embedded •  Java ME 8 is the “little sibling” of Java SE 8 •  Portability of applications and libraries across the Java Platform •  Java ME vs. Java SE is a footprint/functionality tradeoff •  Java ME & Java SE release cycles are in sync Key Principles •  Modern and flexible platform for delivering embedded software •  Unified development experience & community across Java •  Aligned Java language, core APIs, development, and tools •  Enable 9+ Million Java developers to develop for Java Embedded Benefits Enabling Java Developers to be Embedded Developers
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.18 Java ME 8: Key Themes and Features •  Unifying Java Embedded ecosystem & unleashing innovation •  Dedicated and optimized embedded software platform •  Enable increased range of use cases and markets Themes Key Features •  Modern, flexible, standards-based software platform •  Value-add new & enhanced features for embedded and wireless •  Improved configurability and optimized footprint •  Target devices as low as at 128 KB RAM, 1 MB Flash/ROM (see note) Target Markets •  Small to mid-embedded covering wide range of use cases/markets •  Intelligent edge devices, communication nodes, healthcare devices, smart sensors, smart meters, general IoT/M2M solutions Next-Generation Software Platform for the Internet of Things Note: MEEP 8 Minimal Profile Set, optimized for single-function devices. Actual footprint will vary based on target device and use case.
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.19 Quick Compare: Java ME 8 vs. CLDC 1.1 Feature Java ME 8 Java ME CLDC 1.1 Supported Standards CLDC 8 and MEEP 8 CLDC 1.1 (+ MIDP 2/IMP-NG) Year of release 2014 2003 Java SE 8 alignment (language, APIs, VM) yes no Service-enabled application platform yes no Concurrent application execution yes no Enhanced software provisioning and management yes no Software modularization and re-use yes no Scalable platform yes no Dedicated embedded design yes no Advanced security model and security services yes no Advanced connectivity yes No
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.20 Java ME 8 Focus Platform Footprint Device CPU/ GPU/I-O 50KB-1MB 1MB-10MB 10MB-100MB Java ME Java SE Java Card ARM 7 - Cortex M - ARM9/11 - Cortex A - MIPS32 - PPC - Intel Atom
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.21 Java ME 8 Platform Overview Java VM Additional APIs (Examples) Java ME Connected Limited Device Configuration (CLDC) 8 (JSR 360) Additional Optional APIs On-Device I/O Access Vertical Specific APIs Location Messaging Wireless Communication Web Services Protocols and Data Conversion Sensors Additional Optional JSRs Security and Management Use Case Software (e.g. smart pen) Use Case Software (e.g. wireless module) Use Case Software (e.g. control unit) Use Case Software (e.g. smart meter) Application Platform Java ME Embedded Profile (MEEP) 8 (JSR 361) On-Device I/O Access Device I/O API SATSA (JSR 177) Security and Trust Services Generic Connection Framework GCF 8
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.22 Java ME 8: Top 10 Features §  Alignment with Java SE platform §  Designed for Embedded §  Highly Portable and Scalable §  Consistent Across Devices §  Advanced Application Platform §  Modularized Software Services §  Multiple Client Domains (Device Partitioning) §  Access to Peripheral Devices §  Compatible to existing standard APIs §  Dedicated Embedded Tooling
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.23 1: Aligned with Java SE 8 §  Java ME 8 is a major step towards alignment with Java SE 8 –  Adds SE 8 language, libraries, and virtual machine features –  Enables portability of code across the Java Platform, from small to large –  Unifying the development model: Enables 9 million Java developers to target embedded space §  Java ME 8 remains –  Backward compatible to previous Java ME versions –  Focused on resource-constrained devices
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.24 2: Designed for Embedded §  Java ME 8 is purpose-built for connected embedded solutions –  Fully headless operation –  Robust and secure application execution –  Application monitoring and recovery –  Remote software provisioning and management –  Versatile advanced connectivity, including popular protocols and latest security standards such as TLS 1.2 –  Power management framework
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.25 3: Highly Portable and Scalable Platform Footprint Device CPU/ GPU/I-O 50KB-1MB 1MB-10MB 10MB-100MB Java ME Java SE Java Card ARM 7 - Cortex M - ARM9/11 - Cortex A - MIPS32 - PPC - Intel Atom
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.26 4: Consistent Across Devices §  Java ME 8 brings consistency to embedded platforms –  Decouples applications from underlying fragmented embedded hardware and software –  Consistent Java APIs and functionality across devices §  Enables creating embedded solutions efficiently –  Create portable Java applications that scale across a variety of devices with minimal effort –  Replace or update target devices without rewriting –  Instead of fighting complexity, focus on your business value and reduce cost and time to market
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.27 5: Advanced Application Platform §  Java ME 8 Multi-Application Model –  Robust concurrent execution of multiple applications §  Enhanced Software Provisioning –  Secure remote software provisioning and management, including full application lifecycle control §  Addresses requirements for many new embedded use cases –  Enables remotely manageable and flexible software solutions –  Reliable in-field software updates to deliver improvements, new features, or to extend product life
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.28 6: Modularized Software Services §  Multi-Application Model enables software modularization –  Application logic can be partitioned into functional modules running as individual services –  Services collaborate to provide complete solution –  Services can be developed, deployed, and managed independently §  Enables faster, more flexible software development and deployment –  Increases agility in developing new functionality or updates –  Allows generalization and reuse of services –  Reduces footprint, deployment overhead, and time-to-market
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.29 7: Multiple Client Domains (“Partitioning”) §  Java ME 8 supports multiple Client Domains on device (“Multi-Tenancy”) –  Example clients: ODM, service provider, system integrator, software developer –  Each client has its own security domain (policy, privileges, parameters) –  All software executes in the domain of its client with strict enforcement of security privileges and limitations §  Enables secure sharing of a device by different clients as part of an embedded value chain
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.30 8: Access to Peripheral Devices §  Device I/O API –  Platform-neutral access to peripheral device hardware directly from Java, no native coding involved –  Allows easy support of use-case specific peripherals, such as sensors, actuators, converters, etc –  Extensible for specialized devices –  Supports a range of common I/O §  GPIO, I2C, SPI, ADC, DAC, UART, AT Commands, Pulse counter, PWM, memory-mapped I/O, and more §  Also planned for Java SE
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.31 9: Compatible with Standard APIs §  Java ME 8 is designed to be compatible with established standards and APIs such as –  JSR 75 (File API) –  JSR 120 (Wireless Messaging API) –  JSR 172 (Web Services API) –  JSR 177 (Security and Trust Services API) –  JSR 179 (Location API) –  JSR 280 (XML API) –  and more …
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.32 10: Enhanced Embedded Tooling § Java ME 8 SDK –  Tools and emulation for rapid development of embedded Java ME applications –  Includes device emulator, application management interface, memory monitor, network monitor, and more –  Live code deployment and debugging on devices § NetBeans Plug-ins –  Integration with Java ME SDK –  Full-featured, integrated development environment for embedded Free Tools
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.33 General IoT and Machine-to-Machine (M2M) solutions Smart Meters & Smart Sensors Medical: eHealth & TeleHealth Wireless Modules, Gateways, Connected Car Industrial Control, Telemetry Java ME 8 Example Use Cases Enabling products and services across different market segments
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.34 §  Modular & flexible §  Complete development and prototyping platform built around QSC6270T SoC §  CPU, RAM/Flash, I/O, GPS, 3G, WiFi §  Extensible through pluggable modules §  Universal IoE/M2M platform §  Quickly and easily start building advanced IoE concepts with Java §  Leverage Qualcomm and AT&T “Internet of Everything” developer program Qualcomm IoE Development Platform Java ME 8: 2nd Generation Java ME for Qualcomm IoE
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.35 §  Smart & small §  Leverage existing compute resources §  Small, connected, low power §  Full Java application platform §  Remote software provisioning and management §  Add intelligence and connectivity to vertical solutions §  Industrial automation, healthcare, security & monitoring, and more Cinterion Wireless Modules Java ME 8: Coming to Gemalto Next-Generation M2M Product Range
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.36 l  Raspberry Pi (Model B) l  Broadcom BCM2835 (ARM1176JZF) SOC l  700 MHz, 512 MB RAM, Linux (Debian) l  ~1 million devices sold, US $35 l  Peripherals supported l  Headless (no graphics) l  Network (Ethernet TCP/IP), SD card (file) l  Serial/UART l  Devices attached via I2C, SPI, and GPIO l  Brings Java ME Embedded features to Raspberry Pi Raspberry Pi Popular, low-cost board for development and educational use GPIO, UART, I2C, SPI
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.37 Connected Microcontrollers A perfect use case for Java ME Embedded §  Microcontrollers are becoming more powerful and better connected -  On-chip memory is expanding to meet the needs of Java ME Embedded -  Enables cost effective, single-chip solutions with Java §  Brings the benefits of Java to the microcontroller space -  Platform-independence, efficient software development, ability for in-field software updates, secure and robust software execution
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.38 Java ME Connected Limited Device Configuration (CLDC) 8 And Generic Connection Framework (GCF) 8
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.39 Java SE 8 •  Description -  CLDC 8 is an long-anticipated, evolutionary update for CLDC 1.1.1 to bring the VM, Java language and core API libraries in alignment with Java SE 8 •  Key Features -  Synchronize Java SE 8 language features into Java ME -  CLDC 8 is an extended strict subset of Java SE 8 -  Introduce developer-friendly Java SE APIs -  Includes updated Generic Connection Framework (GCF) 8 -  Virtual Machine update to align with Java SE developer tools -  Remain small and enable footprint optimizations -  Backward binary compatible CLDC 8 High-Level Overview CLDC 8 Bringing The World of Java SE to Java ME
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.40 CLDC 8 architecture CLDC 8 NIO files NIO channels Logging Compact Configuration NIO buffers java.lang java.io java.security java.util GCF 8 Multicast Secure Datagram Modem Connection HTTP HTTPS Socket Server Socket Datagram Java VM
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.41 Configurations The “CLDC Configuration” is the complete set of CLDC APIs Provides maximum functionality for applications Typical CLDC platform footprint is 1-2 MB ROM The CLDC Compact Configuration defines a subset for very small target platforms Omits Logging, NIO Files, and NIO Channels Tailored for very constrained devices (512 K ROM) CLDC is scalable to small and very small devices
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.42 New Java Language Features • private void setInterval(int interval) { assert interval > 0 && interval <= 1000 : "Invalid value?”; } Assertions •  Added support for AbstractCollection, AbstractList, AbstractSet, Collection, Collections, Enumeration, Iterator, List, ListIteratorGenerics • void processList(Vector<String> list) { for (String item : list) { ... } Enhanced for Loop • Hashtable<Integer, String> data = new Hashtable<>(); void add(int id, String value) { data.put(id, value); } Autoboxing
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.43 New Java Language Features • enum Season {WINTER, SPRING, SUMMER, FALL}; private Season season; void setSeason(Season newSeason) { season = newSeason; Enumerations • void warning(String format, String... parameters) { for(String p : parameters) { process(p); } } Varargs • import static data.Constants.RATIO; ... double r = Math.cos(RATIO * theta); Static imports • SuppressWarnings, Deprecated, Override   @Deprecated public void clear(); • (JLS 7 section 9.6.3.2 @Retention - SOURCE retentions policy only.)   Annotations
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.44 New Java Language Features • switch (arg) { case "-data": ... case "-out": ... Strings in switches • long mask = 0xfff0_ff08_4fff_0fffl; byte flags = 0b01001111; Binary integral literals and underscores in numeric literals • catch (IOException | InterruptedException ex) { logger.log(ex); throw ex; Multi-catch and more precise rethrow • Hashtable<String, String> map = new Hashtable<>(); Improved Type Inference for Gen. Instance Creation (diamond) • try (DataInputStream is = new DataInputStream(...)){ return is.readDouble(); } Try-with-resources statement
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.45 Library Updates §  CLDC Library –  Platform extensibility via Service Providers (ServiceLoader) –  EventObject and EventListener –  Subset of NIO Buffers –  NIO Files and NIO Channels –  Logging –  StringBuilder and String Formatter –  Comparable interface –  Try with resources – Closeable and AutoCloseable
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.46 Library Updates §  New Collections –  List – ArrayList, LinkedList –  Map – HashMap, LinkedHashMap, WeakHashMap –  Set – HashSet, LinkedHashSet –  Queue – Deque, ArrayDeque –  Iterable and Iterator, ListIterator
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.47 Focus on: Service Providers §  A service is a well-known set of interfaces and abstract classes that is implemented by a (service) provider. §  Providers can be installed to extend the Java platform. §  Providers are located and instantiated on demand. §  Providers are identified via a provider-configuration file in the META-INF/services resource directory. An extension mechanism for the Java platform
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.48 Service Providers - Example import  com.XYZ.ServiceA;   ServiceLoader<ServiceA>  sl1=    ServiceLoader.load(ServiceA.class);     An extension mechanism for the Java platform ServiceB ServiceB Provider1 ServiceB Provider2 com.XYZ.ServiceA ServiceA Provider1 ServiceA Provider3 ServiceA Provider3 Resources: META-INF/services/com.XYZ.ServiceA: META-INF/services/ServiceB: ServiceAProvider1 ServiceAProvider2 ServiceAProvider3 ServiceBProvider1 ServiceBProvider2
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.49 Updates to CLDC Virtual Machine •  Target devices are not able to support InvokeDynamic •  No support for reflection or retention of runtime annotations CLDC 8 supports the Java VM Specification for SE 7 with some limitations •  For classfile versions 51 and 52 •  without a preverifier Verification by Type Checking •  For classfile versions 48 and older Legacy Verification (Preverifier)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.50 Unsupported Java SE 8 Features §  Features not essential for small embedded use cases – keeping the VM complexity and footprint low –  No reflection –  No serialization –  No InvokeDynamic/Lambda expressions –  No JNI and application native code –  No User-defined class loaders –  No runtime annotations –  No thread groups and daemon threads –  No concurrency utilities –  Limited Math APIs (No BigDecimals) –  Limited security APIs –  Limited collection APIs (No sorted collection classes)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.51 CLDC Summary Language Alignment with SE 8 VM Alignment with SE 8 Library Alignment with SE 8 Compact Configuration for very small devices GCF 8 to provides flexible networking Developer leverage to tools, APIs and knowledge
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.52 Generic Connection Framework (GCF) •  Consistent IPv6 support •  Generic ConnectionOption mechanism to parameterize connections •  Permissions apply per protocol •  Extended failure information via exceptions from java.net Consolidates GCF specification from CLDC, MIDP, CDC, and JSR 197 •  File support via StreamConnection •  IP Multicast •  Latest version of security protocols via TLS 1.2 •  Secure datagram connection via DTLS 1.2 •  Modem connection enhances CommConnection with control of hardware handshake New and enhanced protocols
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.53 Generic Connection Framework (GCF) CLDC DatagramConnection ContentConnection InputConnection OutputConnection StreamConnection CLDC 8 SecureServerConnection SecureDatagramConnection ModemConnection UDPMulticastConnection CommConnection HttpConnection HttpsConnection SecureConnection ServerSocketConnection SocketConnection UDPDatagramConnection
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.54 New GCF Features •  GCF consistently supports IPv6 addresses •  The value of the host field on Connector.open must be a symbolic hostname, an IPv4 address or an IPv6 address surrounded by square brackets ('[', ']’). •  datagram://[2001:db8::7]:4567 •  multicast://[FF0X::101]:4444 IPv6
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.55 New GCF Features •  GCF includes support for UDP Multicast •  1 to n communication of UDP datagrams •  Multicast is important for distributed services: Used for service announcement and discovery, media streaming •  Dynamic Discovery for configuration and rendezvous (mDNS, Bonjour) •  The new protocol class UDPMulticastConnection enables •  Client and server scenarios •  Joining multicast groups •  Creating a multicast server socket UDP Multicast
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.56 New GCF Features •  SecureConnection and SecureServerConnection support TLS 1.2 •  SecureServerConnection provides the server-side of a TLS connection •  Both can be parameterized to: •  Select a set of cipher suites •  Select a minimum protocol version •  Request client authentication TLS protocol enhancements
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.57 New GCF Features •  SecureDatagramConnection provides client-side support for DTLS •  It can be parameterized to: •  Select a set of cipher suites •  Select a minimum protocol version •  Request client authentication DTLS protocol support for TLS over UDP
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.58 New GCF Features •  Utility functions for name lookup, reverse name lookup and for testing the reachability of a host (ping): • getCanonicalHostName(String host) • isReachable(String host, int ttl, int timeout) • getByName(String host) NetworkUtilities
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.59 New GCF Features •  Purpose: monitor and control the signal lines of a serial interface •  Getter and setter for the line mode (input/output) •  Getter and setter for the line state •  Listener for changes to the state of an input line Modem Connection
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.60 New GCF Features •  Type-safe mechanism for protocol-specific additional parameters •  Useful for selecting access points, proxy settings, proprietary protocol extensions •  Multiple connection options can be used with varargs ConnectionOptions • ConnectionOption <String> keep = new ConnectionOption<> ("KeepAlive", "KEEP_ALIVE"); ConnectionOption <Integer> port = new ConnectionOption<>("ProxyPort", 80); Connection c = Connector.open(“my.server.com”, keep, port) Example Additional protocol parameters
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.61 New GCF Features: Access Point §  The AccessPoint API enables: –  Obtaining a list of available network access points –  Querying the access technology (e.g. 3GPP, CDMA, Wi-Fi, Wired) –  Getting Access-point technology-specific properties (e.g. 3GPP country code, network code) –  Selection of an access point for a connection –  Receive connect/disconnect events –  Selection of roaming/non-roaming Selecting a Network Access Point
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.62 New GCF Features: Access Point AccessPoint  aps[]  =  AccessPoint.getAccessPoints(true);   AccessPoint  ap  =  aps[0];   //  attach  an  event  listener  to  the  first  access  point   ap.addListener(new  AccessPointListener()  {   public  void  notifyEvent(AccessPoint  accessPoint,  int  eventType)  {      if  ((eventType  ==  AccessPointListener.EVENT_TYPE_AVAILABLE))              System.out.println(“signalstrength  =  ”+  ap.getProperty(“signalstrength"));      }   });     //  select  the  first  access  point  for  communication   ConnectionOption<String>  id  =  new  ConnectionOption<>("AccessPoint”,  ap.getId());   Connection  c  =  Connector.open("http://www.oracle.com/index.html",  id);   Example
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.63 Development Tools for CLDC 8 §  Standard JDK 7 or 8 tools can be used for application development §  Embedded-specific hints & warning messages –  Provides developer with additional information to optimize code §  Debug structures are optional –  Debug features can be ignored/filtered out to save footprint §  Future tools under consideration may include –  Optimizing converter/compiler plugin for optimizing CLDC 8 applications §  Integrated with Java ME SDK and IDEs
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.64 Java ME Embedded Profile (MEEP) 8
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.65 MEEP 8 High-Level Overview § Description –  MEEP is an evolution of JSR 228 (IMP-NG), defining a modernized Java application platform with features and enhancements targeted at the small- and mid-range embedded market § Key Features –  Builds on CLDC 8 –  Robust and flexible multi-tasking/concurrent application model –  “Services-enabled” application platform supports modular software design, deployment, and management –  Enhanced and flexible security model –  Improved configurability and optimized footprint for deployment The Evolution of Java ME for Embedded
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.66 MEEP 8 Key Features and Benefits A Modern Services-Enabled Software Platform for Embedded Feature Benefit Built on CLDC 8 Leverages CLDC 8 language features, APIs, and permissions model to align with Java SE 8 API Optionality and “Profile Sets” Enables “right-sizing” of platform to optimize footprint and reduce hardware requirements for specific target device Software Provisioning and Management Supports remote deployment, management, and monitoring of software components Support for Software Modularization Enables modular software development and deployment, reducing development effort, complexity, and footprint Support for advanced connectivity Supports a wide range of connectivity options, both wired and wireless, including advanced support for cellular Enhanced security model Enables implementation of use case-specific security policies for authentication and authorization
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.67 MEEP 8 Target Devices and Footprint § MEEP 8 is designed for “Right-Sizing” –  Well-defined optionality and modularity allows matching software features to deployment target footprint –  Greatly expands the range of addressable use cases and devices § Target Device Categories –  Minimal Single-Function Device: Smallest possible footprint –  Standard Multi-Function Device: Expands with functional requirements –  Full Multi-Function Device: Full functionality, footprint not a concern Adressing New Market Opportunities
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.68 MEEP 8: Right-Sizing The Platform MEEP 8 Full Profile Set MEEP 8 Minimal Profile Set •  Mandatory core APIs, application model, application packaging Target Devices/Use Cases •  Very small devices (low cost/power/size) •  Single-function use cases (e.g. smart sensor) Minimum: •  128 kB RAM •  1 MB Flash Recommended: •  256 kB RAM •  2 MB Flash (see notes 1, 2) MEEP 8 Standard Profile Set •  Adds support for software services platform (multi-tasking, application mgmt, shared libs, events, enhanced security model, etc) •  Optional Packages as per use case Target Devices/Use Cases •  Mid-range MCU/low-end embedded systems •  Wide range of use cases (e.g. wireless module, industrial control system, remote monitoring device, smart network note, etc) Minimum: •  512 kB RAM •  2 MB Flash Recommended: •  1 MB RAM •  3 MB Flash (see note 1) MEEP 8 Full Profile Set •  All ME 8 functionality and Optional Packages Target Devices/Use Cases •  High-end MCU or mid-range embedded systems •  Use cases requiring full software functionality, footprint not a concern Minimum: •  2 MB RAM •  4 MB Flash (see note 1) CLDC 8 Optional Package Optional Package Optional Package Application(s) MEEP 8 Standard Profile Set MEEP 8 Minimal Profile Set Optional JRSs Optional APIs Notes: 1) Actual footprint will vary based on target device and use case. 2) MEEP 8 Minimal Profile Set, optimized for single- function devices.
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.69 Application or Service MEEP 8 MEEP 8 Architecture CLDC  8   javax. microedition. midlet New in MEEP 8 Updated in MEEP 8 javax. microedition. io (optional) javax. microedition. event (optional) javax. microedition. key (optional) javax. microedition. lui (optional) javax. microedition. media (optional) javax. microedition. power (optional) javax. microedition. rms (optional) javax. microedition. swm (optional) javax. microedition. cellular (optional) Application or Service Application or Service
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.70 Package Description javax.microedition.midlet The Application and the environment in which the application runs. javax.microedition.swm [OPTIONAL] Provides extended software management features to MEEP. javax.microedition.cellular [OPTIONAL] Provides classes to obtain information about cellular networks the device is registered on. javax.microedition.event [OPTIONAL] Events for system state changes and application to application communication. javax.microedition.power [OPTIONAL] Power management. javax.microedition.io [OPTIONAL] Networking support based on the Generic Connection Framework Specification. javax.microedition.lui [OPTIONAL] Set of features to implement Line-oriented User Interface. javax.microedition.key [OPTIONAL] Support of embedded device key input. javax.microedition.media [OPTIONAL] Features for Audio support on embedded Devices. javax.microedition.rms [OPTIONAL] Mechanism for applications to persistently store data and later retrieve it MEEP 8 API Packages
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.71 MEEP 8 Application Platform A modern platform to build flexible, modular, and manageable software Component/concept Description Software provisioning Provision of applications and libraries, and management of dependencies Software management Control lifecycle of software components Application concurrency (MVM) Concurrent execution of multiple apps, in isolation Inter-application communication (IMC) Exchange data between applications (synchronous) Events Send/receive events across system (asynchronous) Service Provider/Consumer pattern Enable shared services and service consumers Shared Libraries (LIBlets) Share common code across applications
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.72 MEEP 8 Modularized Software Services § Multi-Application Model enables software modularization –  Application logic can be partitioned into functional modules running as individual services –  Services collaborate to provide complete solution –  Services can be developed, deployed, and managed independently § Enables faster, more flexible development and deployment –  Increases agility in developing new functionality or updates –  Allows generalization and reuse of services –  Reduces footprint, deployment overhead, and time-to-market Flexible Software Design and Re-Use
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.73 MEEP 8 Software Provisioning & Management Installation Mgmt install/update/remove & resolve dependencies Lifecycle Mgmt start/stop/terminate & prioritize Provisioning download, authenticate, verify Security Policy Provider security policy & permissionsStorage App-1 App Mgmt Agent Application Management System (AMS) Authentication Provider authenticate App-2 Java Runtime Uses API 2. Download 3. Authenticate (2) 4. Install 6. Access 7. Provide 8. Control 9. Secure 5. Store Application Package Deployment Infrastructure •  Identity •  Provisioning •  Security Policy •  Management 1. Implement protocol App Management Agent: •  Privileged application •  Implements deployment- specific protocol •  Manages local applications via AMS API 3. Authenticate (1) Client Device
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.74 Shareable Software Components §  A shareable software component that one or more applications MAY use at runtime §  Save static footprint size by enabling multiple application suites to share the same common code without packaging them redundantly §  Reduced download times for applications that declare dependencies on shared components §  Each shared library exposes a set of classes and resources to applications for their use just as if those classes and resources were originally packaged within the application JAR §  Different implementations of the same API can be can be accessed via the Service Provider/Consumer pattern Shared Libraries (LIBlets)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.75 Service Provider/Consumer Pattern §  Service is a well known set of interfaces/abstract classes; Service Provider is an implementation of the service §  Enables consumers to use services by one or more providers §  Features of the Application Platform Framework –  Ability of apps, shared libraries, or runtime to declare it provides a service (provider) –  Ability of apps or shared libraries declare a dependency on a service (consumer) –  Ability of the AMS to bind a consumer to a provider, and rebind on updates –  Service provider executed in context of consumer (client application) §  Benefits –  Modular software design, increased reuse, easier updating, reduced testing, reduced footprint Based on Java SE ServiceLoader API
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.76 MIDletSuite1 MIDletSuite2 How does it work? Simple example, Service Provider and Consumer are two different apps MIDlet 2 LIBlet 2 MIDlet 1
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.77 How does it work? (cont) Simple example, Service Provider and Consumer are two different apps MIDletSuite1 MIDletSuite2 MIDlet 2 LIBlet 2 MIDlet 1 LIBlet2.jar/META-INF/services/com.example.CodecSet LIBlet2.jar/META-INF/MANIFESTMIDletSuite1.jad LIBlet-Services: com.example.CodecSet … MIDlet-Dependency-1: service; required; com.example.CodecSet … com.example.impl.StandardCodecs # Standard codecs
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.78 How does it work? (cont) Simple example, Service Provider and Consumer are two different apps MIDletSuite1 MIDletSuite2 class StandardCodecs class MIDlet1 MIDlet 2 LIBlet 2 MIDlet 1 public class StadardCodecs implements CodecSet { public StadardCodecs() { … } public Encoder getEncoder(String encodingName) { return new EncoderImpl(…); } } private static ServiceLoader<CodecSet> codecSetLoader = ServiceLoader.load(CodecSet.class); public static Encoder getEncoder(String encodingName) { for (CodecSet cp : codecSetLoader) { Encoder enc = cp.getEncoder(encodingName); if (enc != null) return enc; } return null; } Interface CodecSet public interface CodecSet { public Encoder getEncoder(String encodingName); public Decoder getDecoder(String encodingName); }
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.79 Java ME 8 Security
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.80 Java ME 8 Security Overview § Trust Model –  Authentication of client security domains and all associated software components § Runtime Security –  Sandboxed execution in a controlled environment with secure code loading, verification, and strong data typing –  Code authorization model enforces fine-grain permissions control for access to resources and data § Security Services –  Advanced Cryptography and Public Key Infrastructure (PKI) –  Latest secure communication standards (TLS 1.2) Comprehensive platform security
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.81 Java Runtime Execution Security Example: File Access §  All code execution is under direct control of Virtual Machine §  Access to resources and functionality must be explicitly allowed §  Permissions are checked at every access §  All accidental or malicious access at any point is denied by Java runtime Fine-grain Java SE Security Model and Permissions
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.82 Multiple Client Security Domains (“Partitioning”) § Java ME 8 supports multiple Client Security Domains on device (“Multi-Tenancy”) –  Example clients: ODM, service provider, system integrator, software developer –  Each client has its own security domain (policy, privileges, parameters) –  All software executes in the domain of its client with strict enforcement of security privileges and limitations § Enables secure sharing of a device by different clients as part of an embedded solution Enabling the embedded software value chain
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.83 Multiple Client Security Domains: Example CPU Designer Solution Partner Service Provider System on Chip Vendor (SOC) OEM/ODM Enterprise Enabling a secure and robust software value chain §  Each client can have their specific security domain and context, based on the deployment needs (e.g. permissions, credentials, settings) §  Clients and associated software co-exist on the device, but are strictly separated §  Software components collaborate through well-defined mechanisms to provide entire solution Device
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.84 Device I/O API (DIO)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.85 Access to Peripheral Devices §  Device I/O API –  Platform-neutral access to peripheral device hardware directly from Java, no native coding involved –  Allows easy support of use-case specific peripherals, such as sensors, actuators, converters, etc –  Extensible for specialized devices –  Supports a range of common I/O §  GPIO, I2C, SPI, ADC, DAC, UART, AT Commands, Pulse counter, PWM, memory-mapped I/O, and more –  Also planned for Java SE Extensible I/O directly from Java applications
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.86 Device I/O API Features in ME 8 Peripheral Type Description Peripheral abstraction interface All access to peripherals via PeripheralManager (late binding) General Purpose Input/Output (GPIO) Access to buttons, switches, LEDs, etc. Inter-Integrated Circuit Bus (I2C) Access to I2C slaves (sensors, RTC, DAC/ADC, NVRAM, …) Serial Peripheral Interface Bus (SPI) Access to SPI slaves (audio devices, LCD screens, EEPROM/Flash, …) Analog/Digital conversion Access to ADC and DAC channels Universal Asynchronous Receiver/ Transmitter (UART) Access to UART serial communication and control Memory-Mapped Input/Output Access to devices with memory-mapped registers and memory blocks AT Command Interface Access to modems and devices supporting AT commands Watchdog Watchdog functionality to ensure reliable operation Pulse counter Access to pulse counter functionality Pulse Width Modulation (PWM) Access to pulse width modulation output
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.87 Oracle Java ME Embedded 8 Product Information
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.88 Embedded Application(s) Embedded Application(s) Virtual Machine Optional JSR System Controller Communication Management Device Management Tooling Agent Software Provisioning Identity Management Messaging Monitoring & Logging Data Store & Sync Web Server Other Services/ Protocols Graphics/UI Optional JSR Embedded Application(s) Oracle Java ME 8 Product Strategy An extensible, customizable embedded software platform Oracle Java ME Embedded Product Building Blocks (Oracle or partners): Services and/or Libraries (examples) Oracle or 3rd Party JSRs 3rd Party Enhancement 3rd Party Enhancement 3rd Party Enhancements • Local Peripherals • IoT Network • Enterprise Note: Preliminary - Not all components shown are currently available Local or Network Interfaces
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.89 Designed for Small Embedded •  Complete Java runtime optimized for low- footprint ARM architecture devices •  Portable, extensible architecture to address diverse embedded requirements •  Dedicated embedded features and APIs Latest Java ME platform •  Best-in-class multitasking VM •  APIs to support connectivity, encryption, location, and web services •  Based on proven, widely-deployed technology Flexible, long-life services •  Extend system life via remote software update preserving system integrity and certification •  Cross-platform, modular applications •  Distributed processing through Java end to end Best-in-class tool chain •  Java ME SDK tools and emulation •  Netbeans IDE support •  Live, Java-level debugging on device Oracle Java ME Embedded High-performance Java runtime for small embedded
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.90 Oracle Java ME Embedded 8 Stack A rich, flexible, portable embedded software platform Legend: Oracle Unique Features 3rd Party ComponentsHardware (*) : Modifiable Components CLDC 8 + Virtual Machine (JSR 360) OEM Extension APIs * Porting Layer * Additional platform port(s)Win32 Emulation port * Reference Board ports * GPIOSPINetwork Serial Advanced Tooling & Debugging File I2CGPS ... Embedded Application(s) System Configuration ... Device Operating System Java ME SDK 8 Test, Emulate NetBeans IDE Develop, Deploy, Debug Porting Integration Specialization Device I/O API Web Services JSR 172 File I/O JSR 75 XML JSR 280 Security & Trust JSR 177 subset Messaging JSR 120 Location JSR 179 Robust Multi- tasking Standardized Components HTTP Client API System Configuration API MEEP 8 (JSR 361) Advanced Security Enhanced Connectivity Footprint Scalability JSON API OAuth 2.0 API
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.91 Included JSRs & APIs API Description JSR 075 File I/O: Access to on-board file system(s) (SD card, etc) JSR 120 Wireless Messaging 1.0: Send/receive SMS messages JSR 172 Web Services: Basic XML processing, RPC, WSDL, SOAP JSR 177 Security and Trust Services: Crypto JSR 177 Security and Trust Services: APDU JSR 179 Location: Access to location information JSR 280 Enhanced XML processing, building on JSR 172 Device I/O Access to peripheral devices and hardware JSON JSON processing HTTP Client Advanced HTTP connections OAuth 2.0 Industry-standard authentication protocol System Configuration Read/write system configuration parameters Rich API functionality for embedded solutions Note: Not all JSRs are available on all platform (due to hardware limitations)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.92 Dedicated Embedded Features Feature Description Software Managent (SWM) API Remote app management (install, start, update, etc.) SWM lifecycle notifications Application monitoring (e.g. errors, termination) Robust software execution Application execution in resource-managed containers Application autostart/auto-restart Autostart or restart applications Device I/O API Enhanced access to peripherals from Java apps AccessPoint API / Cellular API Support for multiple communication channels Memory Monitor Monitor memory usage during development Network Monitor Monitor network traffic during development Headless On-Device Debug (ODD) Full source-level Java debugging VM Configurator Remote configuration of VM OEM Extensibility Product specialization through extension mechanism Build Configuration Options Configure feature/footprint optimization for target use case
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.93 Comparing Java ME Embedded 8 to 3.x Java ME Embedded 8 Feature Benefit over Java ME Embedded 3.3/3.4 Java SE 8 alignment Unified development model - leverage Java SE 8 language, API, and virtual machine features for more efficient and highly portable code Java ME 8 features Leverage the features of the Java ME 8 standard: •  Enhanced service-enabled application platform •  Increased software modularization and re-use •  Enhanced software provisioning and management •  Platform footprint optimization with “Right-Sizing” •  Enhanced and expanded security model Updated security services Latest standards for secure connectivity and encryption, such as TLS 1.2 and ECC Enhanced connectivity Advanced cellular connectivity and improved networking functionality enables more flexible and intelligent connectivity New value-add APIs RESTful web services and more Improved platform portability, scalability and configurability Enables easier porting, configuration, and footprint tuning of platform to address a wider range of devices and use cases Improved tooling Alignment with Java SE development tools and flow and new and improved tooling functionality for more efficient development
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.94 l  To Be Completed Lower Costs with Oracle Java ME Embedded Feature Cost Savings for Embedded System Productive and secure application platform Reduced development time and deployment costs Pre-integrated, pre-tested runtime Reduced integration and testing costs Cross-platform software Optimize hardware platform without software dependencies Built-in features to support embedded use cases Reduced need to license 3rd party components Local processing and business logic Lower data transmission and processing costs Reduce hardware BOM costs Eliminate bulky operating systems and reduce system requirements Java ecosystem expertise, tools, code Leverage ecosystem for quicker time to market
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.95 ME 8 GA Release Platform Support Platform Description Availability Emulation runtime for Windows 7 Complete product implementation for development on Windows desktops •  Java ME Embedded runtime emulation •  including I/O emulation and tooling •  Bundled with Java ME SDK 8 •  Free download from Oracle Technology Network (OTN) for evaluation •  OJPI source (Windows) ARM11 on Linux Complete, ready-to-run implementation for Raspberry Pi (Model B) developer platform on Linux Debian Wheezy •  Free download from Oracle Technology Network (OTN) for evaluation •  Commercial binary •  OJPI source (Linux/ARM) ARM9 on Brew MP Complete, ready-to-run implementation for Qualcomm IoE developer platform on BrewMP •  Including advanced wireless connectvity •  Free download from Oracle Technology Network (OTN) for evaluation •  Commercial binary •  OJPI source (BrewMP/ARM)
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.96 Additional Platform Support Platform Description Availability Additional standard platforms •  Oracle standard products for additional platforms, such as ARM Cortex-M3/4 •  Stay tuned Other platforms •  Other chip architectures •  Other operating systems •  Specialized features, hardware support, etc. •  Available from Oracle as engineering services projects •  Check with Oracle partners
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.97 Conclusion & Resources
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.98 Conclusion Aspect Benefit Modern Embedded Software Platform •  Java SE alignment enables unified ecosystem for Java Embedded expertise, reuse, and resources •  Modular software system and enhanced manageability accelerates time-to-market and extends product value at reduced cost/risk •  Enhanced and more flexible security model allows deployment- specific security infrastructure Increased Market Reach •  Platform “right-sizing” allows to address wide range of use cases and target markets with a single software model, from low-footprint devices to more powerful systems Open, based on standards, interoperable •  Avoid vendor lock-in •  Participate in and benefit from technology innovation •  Integratable with many industry standards Java ME 8: The Platform for the Internet of Things
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.99 Java ME 8: Learn More •  Download Java ME 8 Early Access -  oracle.com/technetwork/java/embedded/overview/javame/index.html •  Documentation for Java ME 8 –  http://docs.oracle.com/javame/embedded/embedded.html (see top of page for ME 8 content) •  Java 8 Central: -  www.oracle.com/java8 •  Follow me -  Blog: terrencebarr.wordpress.com -  Twitter: @terrencebarr Youtube.com/java blogs.oracle.com.c om/java Facebook.com/ ilovejava @java @javaembedded Nighthacking.com
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.100 Safe Harbor Statement The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle.
  • Java Micro Edition (ME) 8 Deep Dive Mar 28, 2014 Terrence Barr Senior Technologist & Principal Product Manager Java Embedded and Internet of Things Oracle
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.102
  • Copyright © 2014, Oracle and/or its affiliates. All rights reserved.103