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310-053 Sun Certified Enterprise Architect (R) Java EE5 Upgrade

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310-053 exam Dumps Source : Sun Certified Enterprise Architect (R) Java EE5 Upgrade

Test Code : 310-053
Test Name : Sun Certified Enterprise Architect (R) Java EE5 Upgrade
Vendor Name : SUN
Q&A : 144 Real Questions

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SUN Sun Certified Enterprise Architect

Java licensed commercial enterprise Architect (SCEA) | killexams.com Real Questions and Pass4sure dumps

page 1 of 21

This follow quiz carries 20 questions, offered by using Whizlabs software.

query 1:

satisfied Joe Banking corporation is constructing a Banking application to supply on-line entry to their account holders. they have chosen 2 solar 450s for his or her internet server cluster and 1 sun E10000 for his or her software server. The enterprise requirements point out that to develop into a client, a person need to have as a minimum a primary checking account with the bank. additional due to the fact that the client could be the use of the information superhighway to view private information, safety is regarded paramount. What do you bear in mind about the requirements of the system?


Wild Coast sun achieves first-in-Africa internet Zero Waste certification | killexams.com Real Questions and Pass4sure dumps

solar overseas's Wild Coast solar has carried out Africa's first internet Zero Waste score from the green constructing Council of South Africa (GBCSA).

Wild Coast Sun achieves first-in-Africa Net Zero Waste certification

"we are delighted that the growth and innovation popping out of the property sector through initiatives just like the Wild Coast solar internet Zero Waste certification proves to the rest of the world that we can certainly put sustainability and environmental concerns on the coronary heart of how we design, construct, and operate stronger, greener structures and precincts - congratulations to solar international for demonstrating amazing environmental management," noted Manfred Braune, GBCSA managing executive: sector construction and transformation, following the announcement.

As part of their sustainability adventure, solar international has launched into an aggressive Zero-Waste-to-Landfill initiative to be done by means of the end of 2020 at all its South African units. Wild Coast sun is the primary unit within the neighborhood to achieve this goal. Jennifer van Niekerk of GCX, the accredited expert who carried out the internet Zero Certification defined, "The Wild Coast solar’s waste management approach contains the composting of organic waste onsite, recycling of recyclables by means of skill of accredited recyclers, donation and resale of reusable gadgets and the manufacturing of bricks from non-valuable non-recyclable waste."

Brick manufacturing and recycling is carried out offsite with the assistance of a waste contractor, despite the fact wide measures were put in region to reduce, reuse, separate and treat 70% of the waste produced on website.

"Our zero waste to landfill undertaking is just one of many initiatives we are implementing. The triple improvement of cutting back and converting waste into a constructive useful resource is that we achieve our dedication to be environmentally accountable, we support the local economy via job introduction, and we minimise the have an effect on on our final analysis. I call that a win-win-win circumstance," delivered head of sustainability at sun international Jannette Horn.

Green buildings must do more to fix our climate emergency

eco-friendly constructions must do greater to fix our local weather emergency

After more than three a long time of talk in regards to the expertise of building green, we now have nevertheless failed to exchange the way we design and construct constructions...

Meg Holden and Rebecca Holt 6 Feb 2019

As an indispensable step within the success of their zero waste to landfill answer, the Wild Coast solar has positioned tremendous emphasis on the separation of biological waste at supply in all its personal kitchens. It has supported, informed and helped strengthen a full-time business to get rid of organic waste from the kitchens and type the waste to eradicate all contaminants with the aid of hand. a different enterprise, also informed and assisted by using the Wild Coast sun, then composts the organic waste and uses it in an onsite vegetable backyard, the produce from which is offered lower back to the lodge for use within the kitchens. An additional requirement of the certification, the Wild Coast sun were required to meet here standards: put into effect onsite waste recycling, habits average waste flow audits of ongoing consumables and have an up-to-date operational waste and materials administration plan.

"Waste should not be viewed as whatever thing to be disposed and as a value - it's going to be viewed as a resource. Landfill sites are filling up, and we have to prepare for an entire shift in pondering round waste. it is a no brainer that green building, including waste minimisation and reuse, is not any longer a lofty most effective on the continent and the relaxation of the world, we can now see the tangible benefits that are tied to sustainability from an African context and the undeniable fact that inside a number of years the South African business anticipates that we are going to have a a great deal greater stage of eco-friendly constructing exercise is fascinating," said Braune.


sun certified enterprise Architect for Java EE look at book | killexams.com Real Questions and Pass4sure dumps

examine a free excerpt from solar certified enterprise Architect for Java EE examine guide

becoming a sun certified enterprise Architect for Java EE requires an superior understanding of all features of the Java EE platform, from JSF and JSP to EJBs and POJOs. It additionally requires a established potential to mix these diverse add-ons and patterns into a thoughtfully designed system that addresses a selected difficulty. Passing the certification exam—which comprises 64 distinctive choice questions, a techniques design problem and a written assessment of that equipment, can also be difficult even for experienced architects.

solar licensed enterprise Architect for Java EE examine book by Mark Cade and Humphrey Sheil is meant to aid examinees put together for the exam. every writer is a developer and assessor for the exam, and the ebook continues an examination focal point all the way through: All phrases are defined in response to how they're used on the verify, and each chapter is divided into a prerequisite assessment, a discussion area, and pattern questions with explanations of the proper reply. The closing chapters of the booklet provide guide on the way to approach the design element of the examination.

it's important to be aware that this ebook is not designed to teach the reader a way to turn into a business architect. The authors expect that a reader has extensive event with systems design and object-oriented programming and needs to obtain sun certification. whereas the focus is on the examination, although, the simple evaluate the book provides in regards to the Java EE stack makes it a slim and convenient reference for any commercial enterprise architect who works generally with these technologies.


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Sun Certified Enterprise Architect (R) Java EE5 Upgrade

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Comparing the Technologies | killexams.com real questions and Pass4sure dumps

Language and Runtime Support

Java. Developed in 1995 by Sun. All code is compiled into bytecode and interpreted by a virtual machine (JVM). May also be selectively JIT compiled, depending on the JVM, or fully natively compiled with ancillary products (such as JOVE). Can run on any platform that supports a JVM. IBM supports v1.3 of the J2SE SDK.

VBScript and JScript for Web pages and any COM-based language for server components (typically VB or VC++). Scripts are interpreted, while components are natively compiled. VB code also requires a runtime DLL (MSVBMxx.DLL). VBScript and JScript came into use in 1997, while COM grew out of OLE in 1993.

Any language that supports the Common Language Runtime (20-plus in development). Initially compiled to an intermediate language (MSIL) and then JIT compiled to native code by the CLR at runtime or natively compiled (PreJit) at install time. Code written for the CLR is referred to as managed code. Support for the CLR will be shipped with future OSes starting with Windows XP Server released by the end of 2001.

Class Libraries

Standard Java classes found in the J2SE, plus the APIs (JDBC, JSP, EJB, JMS, JAXP, JCA, JFC, JNDI, and so on, as defined in the J2EE specification). In addition, vendors include their own extensions to J2EE for integration and differentiation in the marketplace.

Win32, COM, MFC, ATL, and ASP. Five primary programming models that contain APIs that developers use in building solutions.

Services Framework. A hierarchical set of managed classes arranged in namespaces. Provides a consistent programming model and unifies the APIs needed to build solutions.

Deployment

Java Package. Collection of Java classes assembled as a unit and arranged hierarchically. Weak versioning. Server-based deployment uses XML-based deployment descriptors, which are read and handled differently by each vendor's implementation. WebSphere includes an application assembly tool to handle this process.

DLL, EXE. DLLs contain a collection of functions with weak versioning. EXEs represent an executable program with weak versioning. COM components are housed in DLLs, rely on the registry, and support immutable interfaces but no runtime version checking. Server-based installation accomplished through third-party utilities such as InstallShield.

Assembly. Unit of deployment, security, and versioning. Includes built-in PKI support and metadata to tightly control binding of assemblies at runtime. Support exists in the class loader of the CLR for consistency and version checking. Server-based deployment can be done in a no-impact fashion by simply copying the relative paths that contain the application. Applications also can explicitly share components. Support for the Windows Installer included in VS.NET.

Thin Client

Java Server Pages (JSP). WAS supports JavaScript or Java in JSPs that are compiled into HttpServlets on the fly and are cached by the server. No native support exists for different devices, and there are no client-state services other than cookies. WAS ships with an HTTP engine (1.3.19) but can use Apache, Domino, Netscape, iPlanet, or IIS 4.0/5.0. WAS 4.0 is v1.1–compliant. The syntax of JSPs is a knockoff of ASP and was developed in 1998.

Active Server Pages (ASP 2.0). Technology introduced by MSFT in 1997 in which pages containing server-side code are interpreted by an ISAPI server extension and can use simple HTTP caching through headers. No native support exists for different devices, and there are no client-state services other than cookies. ASP runs primarily on IIS 4.0/5.0 but has been ported to other platforms (see Chili!Soft, purchased by Sun). Performance of JSP and ASP is similar on similar hardware platforms.

ASP.NET. ASP.NET pages are compiled into MSIL either statically or on the fly when a request is made. Server control architecture allows abstraction for different devices and state storage across HTTP POST events. Server controls allow developers to create "adaptive controls" to render HTML, WML, and so on as appropriate for the client platform. Runs on IIS 4.0/5.0. Beta performance tests indicate a 200–300% improvement over JSP and ASP.

Web Server Processing

HttpServlets provide a request/response model available to Java classes in addition to session-state services keyed with a client cookie. JSPs often call servlets as the controller that acts as the broker between presentation and business service layers to provide separation between the HTML and Java code. Because of the complexity of writing servlets many "two-tier Web apps" simply have the servlets make direct calls to the underlying database via JDBC. This leads to spaghetti code that is difficult to debug and maintain. The servlet engine is included in WAS and includes a JDBC connection manager that handles database connection pooling. WAS 4.0 is v2.2–compliant.

The ASP runtime implemented in the ISAPI server extension provides a request/response model in addition to session- (keyed with a client cookie) and application-state services. ASP pages often call business services directly implemented as COM components, although many "two-tier Web apps" simply have the ASP pages make direct calls to the database via ADO. This leads to spaghetti code that is difficult to debug and maintain.

The HTTP Runtime in ASP.NET provides an extensible mechanism by which developers can hook into the processing of resources on the Web server through HTTP Modules. Provides very tight integration with the Web server. Also supports a request/response model and application- and session-state services. Session-state services can be deployed on a separate server to increase scalability. Provides a sophisticated caching mechanism for pages and programming code. Provides complete separation of HTML code and programming logic through code behind.

Object Services

Enterprise Java Beans (EJB). Part of the original J2EE specification in 1998. Java classes that are deployed in component-oriented middleware (a container) that provides interception and adds services such as distributed transactions (using the Java Transaction Service [JTS] based on the OMG and using IIOP), security, and database connectivity. The container can run on the same server or remotely. EJBs come in two flavors: entity beans and session beans. Entity beans map to the state of an object as represented by a row in a database. Entity beans provide the mapping to the database and caching of the entity. Entity beans come in two styles: Container Managed Persistence (CMP) and Bean Managed Persistence (BMP). CMP beans allow the container to manage loading and saving the database information, whereas BMP beans provide methods for the developer to insert JDBC code directly. Session beans come in two flavors: stateful and stateless. Stateful beans maintain a conversation with a single client, whereas stateless beans can be reused by multiple clients, with the container handling the allocation. WAS 4.0 is EJB 1.1–compliant.

Microsoft Transaction Server (MTS). Provides component-oriented middleware for COM components introduced in 1996. Provides interception and adds distributed transactions through the Microsoft Distributed Transaction Coordinator service (MSDTC), security, and object activation support. Objects can be both stateful and stateless, depending on administrative settings. Programmers take advantage of MTS services through the use of an API. Only components built in VC++ are free-threaded and thus perform better. No support for automatically mapping database rows to object instances exists.

Component Services (COM+ 1.0). Released with Windows 2000 in 2000 and provides component-oriented middleware for COM components. Provides interception and adds distributed transactions, security, object construction, object pooling, queued components (for asynchronous integration with MSMQ), loosely coupled events for publishing and subscribing to components, and activation support. Objects can be both stateful and stateless, depending on administrative settings. Although built for COM, .NET programmers create serviced components in .NET by deriving their class from a system class and decorate it with attributes to describe the services that it uses. The system class then communicates with COM+ via Win32 and COM APIs. No support for automatically mapping database rows to object instances exists. (The IMDB product that was removed from prerelease versions of COM+ would have served a similar purpose as entity beans, although the ADO.NET DataSet object serves a similar purpose.)

Database Support

JDBC. Data Access API that allows SQL access to a tabular data source via drivers (there are currently 159 listed on Sun's site under 4 different types, ranging from JDBC to ODBC bridges to fully native-protocol Java implementations). Various drivers support connection pooling, distributed transactions, and rowsets, and some are J2EE-certified. The API is similar to the Win32 implementation of ODBC. JDBC 2.0 is the spec under J2EE 1.2, but 3.0 has been defined. Note that when using entity beans with CMP, the container provides the mapping to the database tables through a vendor-specific mechanism. WAS 4.0 supports JDBC core v2.1 and Extensions 2.0. WAS includes providers for DB2, MSSQL, Oracle, Informix, and Sybase.

ADO/OLE DB. OLE DB is both a specification for COM interfaces that database vendors implement (OLE Providers) and a set of services (such as cursor processing and connection pooling) implemented in Windows to provide data access to a variety of data sources. ADO is a simplified automation layer that sits on top of OLE DB to provide data access to scripting languages and COM-based languages such as VB. Although typically used for tabular data access, both ADO and OLE DB can be used to access nonstructured data such as email and XML. OLE DB also can be used to access data through the plethora of available ODBC drivers.

ADO.NET. A set of managed classes that provides access to data sources through what are called managed providers. These include TDS (SQL Server), OLE DB providers, and ODBC drivers. Each managed provider implements connections and connection pooling, commands/parameters, forward-only cursor processing, transaction processing, and error handling. ADO.NET also includes a middle-tier data cache object called a DataSet that provides an XML-based cache of data that can be used to bind to controls and synchronize changes to a data source through an adapter object implemented by the managed provider. Designed to support a loosely connected model with built-in XML representation of the data and XSD representation of the schema. Developers can work with relational data as XML data, and vice versa through the XMLDataDocument class.

Messaging

Java Messaging Services (JMS). JMS is a set of client interfaces to message-oriented middleware (MOM) products that supports both message queues and publish-and-subscribe metaphors. MOM vendors implement JMS providers. JMS includes a specification for a new type of EJB, message beans. WAS includes the (WebSphere MQ) MQSeries JMS provider. WAS 4.0 is compliant with the 1.0.2 specification and includes support for JMS-XA distributed transactions across MQSeries-enabled systems and databases. Need to obtain WebSphere MQ separately.

Microsoft Message Queue Server (MSMQ). A MOM server product running on NT 4 and W2K that supports message queues but does not include a publish-and-subscribe feature built into the product. The product includes a COM-based API for sending and receiving messages and administering queues. Supports distributed transactions through MSDTC. MSMQ is built into Windows NT 4.0 Server.

System.Messaging. A set of managed classes that provide the administrative and client APIs for working with MSMQ servers. MSMQ is built into Windows 2000 Server. It should be noted that developers can access MSMQ through queued components (QC) supported by COM+ 1.0. QC acts as an abstraction layer to allow clients to asynchronously make method calls on components that are backed by MSMQ.

Fat Client

Java Foundation Classes (JFC). JFC includes the Abstract Windowing Toolkit (AWT) and Swing as Java APIs for building GUII applications. Swing is a more abstract API and includes a "look and feel" for developing the same GUI on multiple platforms or adhering to a platform standard. Advanced graphics can be created with the Java2D and 3D APIs. GUI apps run as standalone applications or applets running in a browser.

Win32/ActiveX. Applications written in VB, VC++, or other Windows development tools. Ultimately these tools make calls to the Win32 API for the underlying window management. ActiveX is a COM-based technology for building reusable binary visual components (.ocx) across development environments. Applications run as standalone applications or as ActiveX controls hosted in MSIE. Advanced graphics are available through the DirectX set of COM-based APIs.

Windows Forms. Set of managed classes that allow for the creation of forms-based applications. Takes advantage of new Windows 2000 features such as nonrectangular forms. Includes a managed control architecture to build reusable visual controls. Third parties will provide wrappers for DirectX functionality. Windows Forms–based applications can run as standalone applications or can be hosted in MSIE on clients with the CLR installed.

Integration

J2EE Connector (JCA). JCA is a specification based on the IBM Common Connector Framework (CCF). WAS contains WAS adapters used to connect to packaged applications such as JDEdwards, SAP, Peoplesoft, and so on. These are JCA-compliant and are shipped with VisualAge for Java. You can also build new adapters using the MQSeries adapter offerings. WAS AE multiserver version only.

SNA Server 4.0. Server product that includes OLE DB and ODBC support for AS/400 and DB2. Also includes COM Transaction Integrator (COMTI) for working with CICS and IMS transactions as if they were COM objects. Includes MSMQ-MQSeries bridge and host printing services, among others. Basically, this is COM-based integration, and there are also connectors to packaged products such as the SAP DCOM Connector.

Host Integration Server 2000. Update of SNA Server. Also includes integration with Commerce Server, BizTalk, Active Directory, and Windows Management Instrumentation (WMI). BizTalk also supports application-integration components (AIC) that can be built to integrate with packaged applications; for example, there is a SAP R/3 AIC available.

XML Support

Java API for XML Parsing (JAXP). An API and abstraction layer to deal with various XML parsers. Not included in the J2EE 1.2, but 1.0 is in 1.3. v1.1 supports XSLT and DOM Level 2 and SAX v2.0. IBM has a 100% Java validating XML parser with JAXP support available on its Web site. WAS includes support for DOM 1.0, SAX 1.0, and XSLT 1.0.

MSXML. Microsoft's COM-based XML parser, included as a standalone addition to the OS and in products such as MSIE. Version 3.0 sp1 is the current version, with v4.0 as a technology preview on the MSDN Web site. V3.0 supports XSLT, XPath, and SAX2. Implements much of the DOM functionality specified by the WS3C, in addition to SAX support for event-based processing of large XML documents.

System.Xml. A set of managed classes that implement the DOM, XSLT, and XPath specifications by the W3C. Supports both a tree-based model (DOM) and an innovative stream-based approach for parsing XML documents. Also contains a class that maps XML documents to the ADO.NET DataSet class to provide XML-based access to relational data.

Web Services

WAS ships with the Apache SOAP 2.2 tool support. The toolkit is SOAP 1.1–compliant. Can expose Java classes, EJBs, BSF scripts, or DB2-stored procs as a Web Service. Includes a command-line utility to publish EJBs as SOAP services. Development tools contain wizards to create WSDL from an existing Java application or read WSDL to create a server stub or client proxy. UUDI4J support is also included for client-side interaction with UDDI registries.

SOAP Toolkit 2.0. Downloadable. Current release is sp2. Provides a COM wrapper for implementing Web Services. Wizard exposes COM objects as a Web Service using ASP or IIS ISAPI extensions. Support for WSDL 1.1. A separate UDDI SDK is available for download, and provides a COM API for building and querying a UDDI registry. The toolkit integrates into VS 6.0 so that creating Web Services from COM components is straightforward.

.NET Framework. SOAP 1.1 is implemented in a variety of the base class libraries and, therefore, is very tightly integrated from both consumer and implementer perspectives. Allows individual methods in managed classes to be exposed as Web Services through an attribute of the framework. Automatic creation of WSDL from XSD schemas and managed classes. Automatic creation of managed client proxies from WSDL through the command line and UI in VS.NET with full Intellisense. A separate UDDI SDK is available for download that provides managed classes for building and querying a UDDI registry.

Remoting

Remote Method Invocation (RMI)-Internet InterORB Protocol (IIOP). Provides the programming model (RMI) and the protocol layer for (CORBA IIOP) Java-to-Java communication. Servlets and applets communicate with EJBs via RMI. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.

DCOM. Extension of COM for component communication across the network using any of the Windows NT network protocols. Includes remote activation and security features. Remoting of object instances must be specifically programmed into the COM objects themselves. Assumes a tightly bound model that creates firewall issues and is not well suited to the Internet.

.NET Remoting. Implemented in a set of managed classes. Allows managed code to communicate across app domain boundaries. Can communicate via HTTP or TCP channels. Supports remoting of object instances via binary or SOAP protocols. Supports singletons and client activation. The use of HTTP and SOAP promotes a loosely coupled architecture that does not incur firewall problems.

Naming Services

Java Naming and Directory Interface (JNDI). Programming interface that provides access to directory services such as DNS, LDAP, Novell (NDS), and CORBA COS through vendor-specific providers.

WAS 4.0 is JNDI 1.2–compliant for EJB lookup. The IBM SecureWay Directory 3.2.1 product is included in WAS for access to Active Directory, Lotus Domino, and NDS.

Active Directory Services Interface (ADSI). COM programming interface that supports access to NT, LDAP, and Novell (NDS) directory services through vendor-specific providers.

Active Directory and System.DirectoryServices namespace. Windows 2000 Server includes the distributed directory used in a Windows 2000 domain while the managed classes, in DirectoryServices provide a wrapper around the ADSI interfaces to programmatically access a directory.

Development Tools

WebSphere Studio, Visual Age for Java. Both ship with WAS. Studio is used to build the visual representation of Web pages and JSPs, while Visual Age is used for Java coding of servlets, beans, and EJBs.

Visual Studio 6.0, released in 1998 (three IDEs). Separate IDEs exist for VC++/Visual Interdev for ASP development, and VB for form and component development. Graphical Web development.

Visual Studio.NET. Single IDE that supports unified debugging, project management, Intellisense, Server Explorer, graphical editor for the Web and forms, class view, dynamic help, add-ins, and scripting. Can be used to build console applications, Windows Forms, Web Forms, Web Services, Windows Services, and components. Third-party compiler vendors can plug into VS.NET.

B2B Integration

ebXML. An industry specification (not a shipping product) for performing business-to-business transactions using XML and the Web. Includes some support for SOAP. Not implemented in WAS. Would need to roll your own infrastructure perhaps using Web Services.

No support on NT 4. Would need to roll your own infrastructure using the SOAP Toolkit and Windows services.

BizTalk Server 2000, released in 2000. A separate server product that provides a messaging/scheduling engine and business process orchestration facilities. Messaging includes support for EDI, SOAP, and Rosettanet grammars, in addition to others.

Key Strengths

For organizations that must have platform neutrality, J2EE is the only alternative. The Java language is becoming more widely accepted. Vendors such as IBM offer a single-vendor solution when dealing with legacy applications. Separation of application logic and presentation exists, although, in practice, this is underutilized. EJB model includes automatic database-mapping facilities through CMP.

Large base of VB/ASP developers, resulting in reduced costs. Runs on commodity servers that can be scaled out. Software costs are low. Multiple language support through COM. Tight integration with the dominant client platform (Windows).

Multiple languages supported with a common set of class libraries. Unified programming model with the Services Framework. High productivity development environment. Web application performance. Runs on commodity servers that can be scaled out. Separation of application logic and presentation exists. Greater integration with XML and Web Services protocols. Tight integration with the dominant client platform (Windows).

Key Weakness

Single-language solution. Smaller base of developers. EJBs are complex and not widely used. Thus, JSPs are overused, resulting in spaghetti code. Varying levels of J2EE conformance across vendors. The need to use vendor-specific features leads to vendor lock-in. Performance varies due to vendor-specific implementations. Software cost is generally higher, developer costs are higher, and deployment time is increased.

Highly fragmented programming model. COM infrastructure is unwieldy, leading to DLL hell and versioning problems. ASP pages that do not utilize COM for business and data-access services lead to spaghetti code. Single-vendor solution.

Not a shipping product. OO nature of CLR makes development initially more complicated for VB/ASP developers. Single-vendor solution. Does not support an automatic mapping of database rows to objects as with CMP, although there is widespread disagreement within the industry as to whether entity beans are desirable because they do not promote transactional consistency and are questionable in terms of performance. For more information, see Roger Session's Web site.


Where is Java EE headed to? [UPDATE] | killexams.com real questions and Pass4sure dumps

Discussions about Java EE‘s future persist. After JAXenter launched its interview series with Java EE Guardians, people started a conversation on Reddit, so we decided to move it here and invite everyone to participate. 

Java Champion Lukas Eder

We asked Java Champion Lukas Eder to comment on the current state of Java EE, as well as on the rise of Java EE Guardians and MicroProfile.

JAXenter: Considering the current state of Java EE, do you think we need an initiative to protect its legacy?

Lukas Eder: That’s a very interesting open-ended question. And we can look at it from different angles (all subjective, of course). First off:

Do we need Java EE in the first place?

The Java EE “market” is big; a lot of companies (let’s call them companies) want to build “standard” software and a lot of infrastructure software vendors (let’s call them vendors) want to get a piece of the cake by selling “standard” software platforms (and/or services related to the “standard” platforms) to these companies.

These companies want to have as little cognitive friction as possible when going from one project to the next, but it is a poisonous thing to have too many choices in terms of technology. They pay the vendors to guarantee this lack of friction. Many companies get a free ride because many vendors offer the platform software for free as Open Source.

There is no Java EE standard.

Java EE evangelists used to like to paint a standards-biased picture where the UI framework market (often their favorite example) was shared mostly between Java EE’s JSF and Spring’s MVC. Of course, as the saying goes: “The only statistics you can trust are those you falsified yourself”. If you look at “the market” from a different angle, there’s also Angular JS which dominates it, probably much more than JSF and MVC combined.

We’ve had Struts, before that JSP (still the best Java web UI tech if you ask me) and before Java EE (and before J2EE), there were other technologies, and surely, in the future, there will be other technologies. And that’s just talking about UI frameworks. So, you can see that even within the “standards” scope there are a lot of choices — which is not surprising, given XKCD 927.

So, in my opinion, there is no Java EE standard. Java EE is only a recommended set of libraries that are guaranteed by Java EE certification to work together.

Therefore, the answer to the question do we need Java EE in the first place is “Yes.” However, this is the case only if said certification is your highest priority as an API consumer. Spring is an alternative to the Java EE “standards” where innovation and new features are added without too much of a formal process by a single vendor: Pivotal. They still add exactly the same value as Java EE to most customers, though. That value is: “It just works”. The difference is the following: there’s no certification, but trust in the vendor after many years of excellent delivery. And, there’s no competition in the implementation process because many APIs are proprietary Open Source.

Spring is an alternative to the Java EE “standards”.

Of course, if you build decent integration tests yourself, there’s a third alternative to Java EE and Spring. You don’t need either. You can choose any arbitrary set of third party libraries as long as you trust each individual vendor to “do the right thing” (which is often the case anyway, no matter if you’re using Java EE or Spring). For instance, if you’re using jOOQ (or Hibernate), you can use that library in a “standalone application”, in a Spring application, or in a Java EE application just the same.

Now back to the actual question:

Do we need a group like the Java EE Guardians?

If Java EE was a truly open standard (like HTML, or SQL to some extent), we wouldn’t be in the situation that we’re in. Oracle would just be one more stakeholder in a large consortium and it would be their own choice whether they withdraw from the consortium or not, without affecting the consortium as a whole.

Still, because of the way the JCP is organized, Oracle pretty much dictates what happens in the “standard”. For instance, the TCK for most aspects of Java EE are not open, freely available or even available without the need to accept very restrictive terms.

Should Oracle “secretly” want Java EE’s death, then that’s exactly what’s going to happen.

Now, Oracle seems to have lost interest in Java EE (although we do not know that for sure) and frankly they didn’t do an excellent PR job explaining their strategy. There is a lot of uncertainty in the industry with respect to the future of Java EE. Given Oracle’s tight grip on the legal aspects of Java EE, there can be no fork or truly open standard without Oracle’s consent. So, should Oracle “secretly” want Java EE’s death, then that’s exactly what’s going to happen.

I personally don’t think the Java EE Guardians can do a lot in this case. It’s worth trying, sure. The Guardians all have a big personal stake given the fact that their professional careers depend on Java EE. But as I explained above, there are non-certified alternatives like Spring, or random third party library collections that do the job just the same, so, perhaps, the best way to go forward is to create a new “Spring” from scratch that is governed by a true open standard consortium, free from any legal ties to Java EE, and with or without Oracle. Let’s call it … “Summer” (Note that the community just published “MicroProfile”, which seems to be an initiative which does precisely that.)

JAXenter: How could Java EE be brought forward? Should Oracle be convinced that they will get a better return from continuing to invest in Java EE? Should the focus remain on the community’s support? 

Lukas Eder: There was an interesting discussion on Reddit’s /r/java just recently. /user/thesystemx, who frequently comments on the subject, said:

At last Devoxx I spoke to several spec leads and people from Oracle, and they told me (off the record) that the direct licensing income alone is enough to run Java EE, and that excludes the tag on sales for related products.

And my first thought was…

The direct licensing income of a single Exadata installation is probably enough to run Java EE as well, so perhaps this is an order of magnitude thing (i.e. a “what’s this boring, irrelevant stuff over there stop wasting my time thing”)

As you can see, as a community, we can only speculate about what’s going on right now. I believe that the business is not interesting enough for Oracle. Plus, neither is the community because it isn’t Oracle’s. It’s Red Hat’s, Pivotal’s, IBM’s, and everyone else’s community. Oracle inherited a rather difficult legacy from Sun. Jonathan Schwartz (the former Sun CEO) testified in court in the Oracle vs. Google case that Java was “free”. Quoting from the Ars Technica series:

The strategy was, we agree on these open APIs, then we compete on implementations.

This is what an open standard does, and it was certainly Sun’s intention to “sell” Java EE as an (almost) open standard. But perhaps, after all these years. After doing some proper math, it just showed that this particular (almost) open standard provides benefits to competitors much more than to Oracle. Again, as we’re lacking official PR from Oracle, we can only guess. The fact is, we as a community cannot bring forward Java EE without Oracle. Oracle CEO Safra Catz made this very clear in the Oracle vs. Google lawsuit:

[…] And that Android was an unauthorized fork of Java.

This means that any unauthorized fork of Java EE will have the same fate as Android. Besides, I sincerely doubt that we can convince Oracle to give us more free lunch, so the future of Java EE is, without an actual statement from Oracle’s side, on hold.

Mike Croft —Java Middleware consultant at Payara

We asked Payara’s Mike Croft to comment on the current state of Java EE, as well as on the rise of Java EE Guardians and MicroProfile.

JAXenter: Considering the current state of Java EE, do you think we need an initiative to protect its legacy? 

Mike Croft: Work on Java EE has slowed, but it hasn’t stopped. The JCP involves more than just Oracle, though they are the biggest players at the moment. The Java EE Guardians’ focus is on getting some action from Oracle; their opinion is that this is crucial to the success of Java EE. I agree that movement from Oracle is important for the future of Java EE, whether that is Oracle working on the JSRs they lead or in relinquishing them to the community. It is important to remember that Java EE isn’t only Oracle, however, and there are a huge number of people and corporations of varying size which have a vested interest in its future. The Guardians group is just one effort of many and all efforts are needed in this, just as in any community-led project.

Java EE isn’t only Oracle, however, and there are a huge number of people and corporations of varying size which have a vested interest in its future.

JAXenter: How could Java EE be brought forward? 

Mike Croft: Java EE already has a way to move forward in the version 8 specifications. My personal view is that Oracle can still stand to grow their business by investing in Java EE. We have not heard any official, public response from Oracle as to their plans, so we can’t be sure that the lack of activity is permanent or only temporary as they put more resource into the “other projects” that has been noted on mailing lists. We, as a community, can’t stand still and wait for confirmation, though.

It’s this lack of knowledge which has driven Red Hat, Payara, Tomitribe, IBM and the LJC, who each have significant interests in Java EE, to announce microprofile.io as a way to bring about open collaboration. This is not an effort designed to exclude Oracle, but to leverage the incredible power of the wider Java community to address the needs of modern Java EE users. The aim is to iterate quickly and to collaborate openly on a standard. Standards are incredibly important in technology to avoid fragmentation and, from here, the future looks bright.

Java Champion Lukas Eder

JAXenter: Mike Croft said that the JCP involves more than just Oracle. What’s your take on that? 

Lukas Eder: That’s exactly how it ought to be, but for historic reasons it’s not true, and probably never will be. The JCP *is* Oracle, mostly, from a legal and operative perspective.

But Payara and the others who joined forces to create this MicroProfile initiative can create their own committee (as I’ve mentioned in my previous responses on JAXenter), which is truly open, governed by a foundation, not a corporation. There will still be politics, of course, but it would certainly help move this forward as the legal hurdles would probably be much reduced.

[MicroProfile’s strategy is to] catch up with Spring whose Spring Boot totally dominates the microservices hype.

JAXenter: Do you think MicroProfile is hoping for a reaction from Oracle?

Lukas Eder: I think that MicroProfile backers do not want to add more FUD to the debate. They thus openly invite Oracle to join. In my opinion, however, the strategy is to move forward with innovation and not wait for Oracle, but most importantly: to catch up with Spring whose Spring Boot totally dominates the microservices hype. If Oracle does decide to become part of MicroProfile, fine. But in my opinion, that would be rather surprising.

JAXenter: He also mentioned that “standards are incredibly important in technology to avoid fragmentation”; you said there is no Java EE standard. Why are your viewpoints so different?

Lukas Eder: Of course he says that. He couldn’t run Payara and not have this opinion :).

And I don’t fully disagree with Mike. What I mean by Java EE is not a “standard” is this: There are good, “obvious” standards and less good, less “obvious” ones.

A good standard is a standard that removes fragmentation where fragmentation creates friction, overhead, bureaucracy in the market without adding any value. Good examples for good standards are:

  • Electric voltages
  • Electric outlets (I still hope there will eventually be a world-wide standard, instead of dozens, but at least the EU mostly uses just one)
  • USB
  • Train track widths
  • DIN A4, A5 paper formats
  • JDBC
  • JMS
  • All of these standards simplify business for everyone by destroying the business of those who try to sell deviating, proprietary interfaces. For example, DIN A4 means 297mm x 210mm. Vendors of printers, photocopying machines, document processing software, paper, envelopes, binders, briefcases, etc. etc. can all support “the standard” and consumers don’t have to purchase a briefcase for JAXenter publications and a different briefcase for other documents.

    A bad standard is a “standard” that hinders innovation by adding complexity in a very opinionated environment.

    JDBC is an exceptionally good standard in software, as it removes the need for knowing about vendor-specific APIs and network protocols in order to access mostly RDBMS (although it works also with other data stores).

    There are some good Java EE standards, like JMS, Servlets, JavaMail and others, mostly those that define (again) protocol abstractions, or things that are too boring to be implemented a second time in a different way (JAXB, JavaMail).

    A bad standard is a “standard” that hinders innovation by adding complexity in a very opinionated environment, where differing opinions are good for the market, as each opinion can vary greatly in how it adds value to a consumer. There are a lot of business standards like the ISO 9001 for quality management or the ISO 29119 software testing standards, which are mostly certifications that companies like to show off to impress customers. They don’t really mean anything concrete as it is much too complex to derive from a simple yes/no flag what this really means in the context of a concrete corporation.

    Java EE “shines” here with bad “standards” like EJB, MVC, JPA, JSF, CDI, Bean Validation, Batch, and much more. All of these things do not belong in a standard because they are:

  • Complex
  • Often a bad default choice
  • Often not the only choice, specifically not the de-facto choice (e.g. bean validation, batch)
  • Very opinionated in terms of architecture and design, which greatly restricts the solution space for consumers
  • Take JSF, for instance. It’s a server-side UI component API specification. How many component APIs did we already have? AWT, Swing, JavaFX, Gwt, Vaadin, Wicket, JSF, and many others, lesser known ones. In this case, JSF is “just another” component API (specification). Of course, it’s one of the most popular ones today, but that’s only the case because it profits from the Java EE “brand”.

    JPA is a different story. It solves dozens of problems, which is a very bad thing for a “standard” API. It solves:

  • Mapping (that’s the best part)
  • Querying (in several different, conflicting ways: mapping, utility finder methods, JPQL, criteria API, fetch graphs, native queries, query annotations, etc. etc., none of them are satisfactory, given that SQL is incredibly more powerful)
  • Native SQL (in my opinion, the stored procedure support shows the desperation in this API to keep up with real world needs by shoe horning a feature into an API that was not designed for the mere existence of stored procedures)
  • Transactions (Why? There’s already JTA…)
  • Locking
  • Caching
  • It’s a heterogeneous monster that should be split in 10 different APIs. Don’t get me wrong. It’s fine for an *implementation* like Hibernate to offer all these features out of the box. But the specification shouldn’t do that. It’s simply not a good standard.

    To answer your question: As I mentioned already in my previous answers, the industry likes having guarantees that certain things work together. It’s good to know that JDBC works and that jOOQ or Hibernate work on top of JDBC and that none of these APIs will break in the future. JDBC is a standard. jOOQ and Hibernate aren’t. They’re complex tools that profit from the standard. They drive innovation. They add things, deprecate things, remove things. They should not be standards. Otherwise, their complex innovation will stop.

    I’m hoping that the MicroProfile initiative will take a fresh look at “standardization” in Java and prevent the “standard feature creep” that has happened in J2EE and later on in Java EE from happening. Mark Little’s comment on the topic looks precisely like it.

    Java Rock Star Adam Bien

    JAXenter: Considering the current state of Java EE, did we need an initiative like MicroProfile? Should Oracle take part in this initiative?

    Adam Bien: Sure! Oracle is highly welcome.

    JAXenter: Do you think MicroProfile will have any impact on Java EE Guardians? 

    Adam Bien: Java EE Guardians is just another group of passionate Java EE fan girls and fan boys. I’m sure they appreciate it. At least they retweeted everything what was microprofile.io-related.

    I will ask the Java EE Guardians about their opinion next time I get the chance.

    JAXenter: Mike Croft said that the JCP involves more than just Oracle while Lukas Eder opined that the JCP is Oracle. What is your opinion?

    Adam Bien: I asked the question myself. I asked Heather VanCura What is the relation between JCP and Oracle? The answer can be found here.

    Oracle has a permanent seat on the JCP Executive Committee (EC), and together with the other EC members, the EC votes on the work of the Expert Groups and evolves the JCP itself. The EC is led by a non-voting Chair from the PMO; the PMO is the group within Oracle that is responsible for administering the JCP and chairing the EC. The EC does not micro-manage the day-to-day workings of Expert Groups – the EC has the opportunity to review the work of each Expert Group at well-defined points as their specifications proceed through the JCP program. The primary function of the EC is to ensure that specifications do not overlap or conflict with one another and that the specifications meet the needs of the industry segment for which they are being written.

    Heather VanCura

    On the spec-level it is even clearer. Some specs JSR-365, CDI 2.0, Dependency Injection for Java, JSR 330 were / are led by other companies entirely without Oracle.

    More to come. 

    If you’d like to take part in our debate, drop us an email at editor@jaxenter.com.


    Whatever Happened to JAAS? | killexams.com real questions and Pass4sure dumps

    No result found, try new keyword!With the Java 2 Platform, Enterprise Edition (J2EE), Sun revamped the Java platform security model and introduced a fine-grained, flexible, and extensible security model for code-based security. This ...


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