Does every web client and/or app use 'significant energy?'

Brand new MacBook Pro (non-retina,) with upgraded 2.9 ghz Intel i7, and maxed 16GB 1600 DDR3 RAM.
So far, I've attempted to use Safari, Firefox, and Chrome. Upon using it for more than a few minutes, or having multiple tabs open, it shows under "Apps Using Significant Energy," with the battery icon. If used constantly, I could probably squeeze 3-4 hours of battery life before charging the laptop, which seems quite low for a newer machine. Certainly, it's no MacBook Air, but shouldn't it see a bit more juice than that? Only occasional videos, no constant YouTube or streaming services. Mostly searches, jobs, etc. I've also noticed that my installed Adobe CC programs take a loooong time to startup, but didn't know if that issue is common, or if anything can be done.
So:
** are all the web applications juice hogs? I kinda like Firefox the most, and Chrome has some neat customization features, but they all end up like little piggies in a sloth.
** could it be the MBP? Would resetting anything possibly positively affect the speed, battery longevity, programs on startup, etc?
I'm decent at tinkering if I know the proper steps to ensure I'm doing everything just right. Also, I have AppleCare on the expensive machine, so worst case, I can bring to an authorized store- but I don't want to waste their time if this is just nothing. I've searched the discussions forums for previous advice, and nothing really, precisely answered the issue.
Thanks, and cheers!

The point is you are bound to do VB.Net for web services and it is not VB at all.
The syntax surely resembles VB but wait till you see what you have instead of good old PRINT!
VB.Net is not a continuation of VB, it is something radically different that you will have to learn. And if I had to choose between learning VB.Net and Java/Swing, I would go for the latter. I think the third choice, C#, is definitely the winner on all aspects of programming on the Windows platform. The GUI building gap is not as wide as it was with Visual C++ and VB, in fact, it is almost non-existant: .Net's Windows-forms can be developed rapidly either with C# or VB.Net; basically you get the same tool to develop GUIs.
All things said, there is an excellent article at http://www.theserverside.com/resources/article.jsp?l=SOAP-And-EJB discussing when to opt for SOAP in an EJB environement.
Hope it helps.

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* [https://lists.mozilla.org/listinfo Mailing Lists at Mozilla]
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So I have a brand new MacBook Air (had it less than a week), and the Spotlight app shows up as using significant energy (hovering around 100) almost constantly. And it doesn't appear to be doing anything. Is that normal?

Step 1
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Triple-click anywhere in the line below on this page to select it:
syslog -F '$Time $Message' -k Sender mdworker -o -k Message Rne Norm -k Sender mds | tail | pbcopy
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the built-in Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window by pressing the key combination command-V. I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign ($) to appear.
The output of the command will be automatically copied to the Clipboard. If the command produced no output, the Clipboard will be empty. Paste into a reply to this message.
The Terminal window doesn't show the output. Please don't copy anything from there.
If any personal information appears in the output, anonymize before posting, but don’t remove the context.
Step 2
Enter the following command as in Step 1 and post the output:
mdutil -as 2>&- | pbcopy
You can then quit Terminal.
Step 3
Launch the Console application in the same way you launched Terminal. In the Console window, look under the heading DIAGNOSTIC AND USAGE INFORMATION on the left for crash reports related to Spotlight. If you don't see that heading, select
View ▹ Show Log List
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Please don’t post any other kind of diagnostic report, such as hang logs—they're very long and not helpful.

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Hi there,
I was wondering if anyone could help. I have noticed my battery draining quicker than usual. I clicked on the battery icon and it said that safari was using significant energy. It has never done this before so I am wondering why now, and is there nay way to fix this? I am running all current versions of yosemite and safari and have a mid 2014 mac book pro.
Thanks for your help

Back up all data before proceeding.
Quit Safari if it’s running. Then select
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from the menu bar. A small window will open with a list of running applications. Safari may appear in that list, even though you quit it. If so, select it and press return. Close the window.
Step 1
Hold down the option key and select
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          Preferences/com.apple.WebKit.PluginHost.plist
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          Saved Application State/com.apple.Safari.savedState
Leave the Library folder open. Try Safari again. If the problem is solved, stop here. Close the Library folder. If you still have a problem, continue.
Step 2
Move the following items from the open Library folder to the Desktop (again, some may not exist):
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          Preferences/com.apple.Safari.LSSharedFileList.plist
          Preferences/com.apple.Safari.plist
          Preferences/com.apple.WebFoundation.plist
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Here, "*" stands for a long string of letters, numbers, and dashes.
Note 1: You are not moving the Safari application. You’re moving a folder named “Safari.”
Note 2: This step will remove your Safari extensions, if any, and their settings. If you choose to reinstall them, do so one at a time, testing each time to make sure you haven’t restored the problem.
Try again. Your settings and bookmarks will be lost. The default set of bookmarks will be restored. Delete them all.
If Safari is now working normally (apart from the lost settings), look inside the “Safari” folder on the Desktop for a file named “Bookmarks.plist”. Select
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from the Safari menu bar. Import from that file. Recreate the rest of your Safari settings. You can then delete the items you moved to the Desktop.
If the issue is still not resolved, quit Safari again and put all the items you moved to the Desktop back where they were, overwriting the newer ones that may have been created in their place. You don’t need to replace the files you deleted in Step 1. Stop here and post again.
If you don’t like the results of the last step, you can undo it completely by quitting Safari and restoring the items you moved or deleted in that step from your backup, overwriting any that were created in their place.

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First, return values. I'd like each Command to return a result, even if it's just boolean true if nothing went wrong, so in my Command class I have a private Object result with a protected setter, public getter. The idea is, in the execute() method, after doing what needs to be done, setResult(someResult) is called. The invoker on the server, after running acommand.execute() eventually returns acommand.getResult(), which of course is casted by the client into whatever it should be. I don't see a way to do this using generics though, because I don't see a way to have the invoker's return value as anything other than Object. Suggestions? All this means is, if the client were sending a GetUserCommand cmd I'd have to cast like User user = (User)server.executeCommand(cmd), or sending an AssignWidgetToGroup cmd I'd have to cast like Boolean result = (Boolean)server.executeCommand(cmd). I guess that's not too bad, but can this be done better?
Second, exceptions. I can have the Command's execute() method throw Exception, and the server's invoker method can in turn throw that Exception. Problem is, with a try/catch on the client side, using RMI (or is this just a product of cajo?) ensures that any exception thrown by a remote method will come back as a java.lang.reflect.InvocationTargetException. So for example, if in MyCommand.execute() I throw new MySpecialException, the server's command invoker method will in turn throw the same exception, however the try/catch on the client side will catch InvocationTargetException e. If I do e.getCause().printStackTrace(), THERE be my precious MySpecialException. But how do I catch it? Can it be caught? Nested try/catch won't work, because I can't re-throw the cause of the original exception. For now, instead of throwing exceptions the server is simply returning null if things don't go as planned, meaning on the client side I would do something like if ((result = server.executeCommand(cmd)) == null) { /* deal with it */ } else { /* process result, continue normally */ }.
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First of all, thanks for taking the time to read, I know it's long.
Secondly, pardon me, but I don't see how you've understood that I wasn't going to or didn't want to use exceptions, considering half my post is regarding how I can use exceptions in my situation. My love for exception handling transcends time and space, I assure you, that's why I made this thread.
Also, you've essentially told me "use exceptions", "use exceptions", and "you can't really use exceptions". Having a nested try/catch anytime I want to catch the real exception does indeed sound terribly weak. Just so I'm on the same page though, how can I catch an exception, and throw the cause?
try {
catch (Exception e) {
Throwable t = e.getCause();
// now what?
}Actually, nested try/catches everywhere is not happening, which means I'm probably going to ditch cajo unless there's some way to really throw the proper exception. I must say however that cajo has done everything I've needed up until now.
Anyways, what I'd like to know is...what's really The Right Way (tm) of putting together this kind of client/server app? I've been thinking that perhaps RMI is not the way to go, and I'm wondering if I should be looking into more of a cross-language RPC solution. I definitely do want to neatly decouple the client from server, and the command pattern did seem to do that, but maybe it's not the best solution.
Thanks again for your response, ejp, and as always any comments and/or suggestions would be greatly appreciated.

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Web client and security

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On this photo you can see that certificate exist. I've tried to export certificate from my server computer and import it to client but it didn't help to fix problem.
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Attachments:
untitled11.jpg ‏136 KB

Does every web client and/or app use 'significant energy?'

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