Very often while working in Eclipse I realize that I remember class name, but forgot in which package this class is. Using Search is not very convenient. Too many clicks and key presses. I wonder, is there a plugin to simplify this process? For example, would be great if there was text-edit box in the top of package explorer which could filter showing packages and .java files depending of entered text. Anyone knows something like that?
Eclipse does provide similar functions:
Open Resource Shift+Ctrl+R for all resource files (including Java files)
Open Type Shift+Ctrl+T for all Java classes in classpath.
They also filter the list as you type.
Note that they search all files of all opened projects in current workspace.
Related
I'm working with eclipse and want to find a specific line that is being output in an error message. The line is not in any code I've written, but I believe it's comeing from a specific library I've included. Eclipse is able to navigated through classes within the library so it has the source from somewhere, the jars were fetched from Mavin and I assume the jar it fetched was a source jar?
The problem is that, by default, the simple java search does not search inside of jar's for lines, and I didn't see an obvious way to tell it to. IN addition I don't want to search all the jars, or even all the code within the one suspected jar, for a line as it could take awhile. Is there a way I can tell eclipse to do a text search of every file within a specific package only? Failing that how would I tell it to do a text search of all code within a specific jar?
Thanks.
Eclipse's 'File Search' which you'd need to find arbitrary text in files doesn't "look into" JARs. Its 'Java Search' on the other hand doesn't look at source code specifically but allows to search types, methods, fields etc. (i.e. things Eclipse doesn't need source code for). Hence, Eclipse can't help you here.
You weren't asking for alternatives but on Unix there's zipgrep and for Windows I believe Actual Search & Replace does the same.
I'm looking for a way to get a window (like the package explorer) that just lists the files that eclipse has open - ideally like a permanent ctrl-e, or ctrl-F6.
I was thinking this might be possible with some kind of configuration of mylyn. Currently when I have the package explorer in 'context focus' mode, it lists the entities I'm interested in but provides too much detail; I'd like to hide the method and class elements.
Anyone know if this is possible?
This won't give you exactly what you're asking for, but it might work for you. You can get mylyn to only show you the files and not their structural contents.
In the package window, select filters from the drop-down. Exclude all the java things you don't want. Then switch the mylyn context filter on for the package window. You now have only the files visible in the current context excluding all the usual expanded structural information.
Hi I wondering if there is the equivalent to an App Explorer in Sublime Text 2.
When using eclipse, I use the App Explorer panel to search by file name.
I have a file naming convention that helps me find files by there functionality within the system.
So say I want to list all files relating to the registration process. I search for "regis" via the App Explorer and get a nice list of the relevant files. This filtered list is available all the time until I search again.
I can use Sublime Text's cmd+p but prefer the above as I can see the folder hierarchy etc.
In essence it is merely a file name filter on the folder list.
Are there any plugins that may give me something similar.
Any help much appreciated.
No, as far as I can tell nothing like this has been implemented in Sublime Text 2. I would suggest opening an issue at Sublime's UserEcho forum.
In the meantime:
Typing "regis" into Sublime's 'GoTo Anything' panel will bring up the files you're looking for, and show you their paths (I realize this doesn't help you with visualizing the hierarchy, but that's as close as it gets).
I use a package called SyncedSideBar - this will at least show you a visual representation of the folder hierarchy in the sidebar, for the open file, if it's added to the project.
The GoTo Folder package by freewizard may do something similar to what you're looking for, but I had trouble getting it to work. Maybe you'll have more success.
Good luck!
Sometimes, in Eclipse , i press a combination of keys which take me to the editor page that shows contents of my .class file (bytecode). I never seem to be able to remember what that key combination is.
Can someone please let me know?
Or in other words, how can one see own bytecode?
Eclipse's default class file viewer shows the source (see VonC's answer) if it has been associated with the binaries, otherwise it gives a javap-like view of the class (with an option to attach source). I'm guessing it's the latter that you are looking for.
I've never found a way to cleanly force Eclipse to show that output rather than the linked source. What you probably want is an Eclipse plug-in that provides Javap like functionality (or an interface to javap). Look for plugins stating they "disassemble" (as opposed to "decompile," like jad).
Barring a plug-in, you could probably configure an external tool to perform javap but it might not play nicely with other eclipse features.
Edit: Let me be clear about the above: If you hit F3, Eclipse does the following (generally, the actual procedure might be slightly different):
Resolves the target (if you are selecting a Java file, it will be the Java file itself; if you are selecting or your cursor is over a class name it will be the class declaration, similar for a method declaration, etc).
Searches the build path (same project first) for a Java file containing the target. If found, opens up an writable editor displaying that Java source file.
For class/method declarations, it continues searching references on your build path for a class file that contains the declaration. If it is found, then
a) If the class file has had source attached to it, open up a read-only editor of the linked Java file.
b) If the class file does not have source attached to it, then open up a read-only panel showing the disassembled (javap-like) bytecode of the compiled class file.
My guess would be that you're thinking there's a dedicated key sequence to 3.b), but I don't think there is. But again, I would love to be proven wrong here.
Using the following external tool configuration we can view java byte code in eclipse with the help of javap:
To get the above pop-up select Run option and select External Tools and select External Tools configuration...
${system_path:javap} is used to locate javap in the JDK used by the Eclipse. You can use an absolute path to javap instead.
${project_loc} returns the absolute path to the project. This is used, since I could not find a pre-define variable to use, to locate the .class file of a resource, and that's why javap runs in the project's directory instead of the directory containing the .class file.
Among the arguments passed to javap:
bin is the default output folder for Eclipse projects. Change this to build/classes or whatever is used by the project. Note, the value is relative to ${project_loc}; you can specify absolute paths instead.
${java_type_name} is used to obtain the selected class name.
You can select a Java file in the Project explorer view or Project navigator view, or even a Java type in any of the views, and then run the external tool. Note - this approach doesn't work quite well when you select a method, an inner class etc. and then run the tool, as they are not resources on their own, leading to the scenario where ${project_loc} will be empty.
Source
Dr. Garbage Tools is a suite of Eclipse Plugins released under Apache Open Source license.
Install Bytecode Visualizer using Eclipse Marketplace.
To view a bytecode:
Right click on .java file, select open with and select other you will get the following popup:
Search "Bytecode Visualizer" and select the option it opens the file as follows there you can find Bytecode option as shown:
Enhanced Class Decompiler
"Window > Preferences > General > Editors > File Associations"
Change default to your for both .class association.
"*.class" : "Class Decompiler Viewer" is selected by default.
"*.class without source" : "Class Decompiler Viewer" is selected by default.
You can use ASM 4.0 Plugin.
Installation
The Bytecode Outline plugin can be installed from the Eclipse Update Manager with the ObjectWeb Eclipse Update Site http://download.forge.objectweb.org/eclipse-update/
Alternatively, the plugin can be downloaded from the ObjectWeb Forge site, and manually installed in the Eclipse plugins directory.
Usage
To see the bytecode of the current .java or .class file:
Window -> Show View -> Other -> Java -> Bytecode
To compare the bytecode of two .java or .class files:
select two *.class or *.java files -> right click -> Compare with -> Each Other Bytecode
or
select one *.class or *.java file -> right click -> Compare with -> Another Class Bytecode
http://asm.ow2.org/eclipse/index.html
Well... if the .class is selected in the Navigator View or Package Explorer view, a simple F3 is enough to open a decompiled version of it in the editor.
As hinted at by user833970: The Bytecode Outline plugin: http://andrei.gmxhome.de/bytecode/index.html
At its base, it provides a "bytecode" view for the currently opened Java file which is what you were looking for.
However, you can also assign it to load any random .class file instead of the default .class viewer, and it surpasses it in many ways. For example, this viewer actually jumps to the right spot in the bytecode if you click on a member in the Outline view.
Download links (for dropin use) can be found at the afore-mentioned link, the update-site is http://andrei.gmxhome.de/eclipse/.
If you are really interested in the bytecode there is a eclipse plugin that lets you open and edit the bytecode of a .class file using a text editor.
https://github.com/itemis/jbc
I've tried several different solutions for this.
Bytecode Visualizer (available here: https://sourceforge.net/projects/drgarbagetools/ ) is, in my opinion, the best solution. It neatly displays the output and makes clear how it links to the source code. I've noticed a few minor misinterpretations on some of the bytecodes, but you can get the gist of it.
Unfortunately, it doesn't seem to support Neon at time of writing. It does support Mars, though.
Simple question: how do I search all the files currently open in Eclipse? Note: I don't wanna search all the files I have in that workspace, just the ones open in tabs. Is there an easy way to do this?
Closest way is selecting several resources in Navigator or Package Explorer view, then press Ctrl+H and choose 'Selected Resources' radio button. It will limit search only to selected files.
CTRL+E on Windows or Linux, and Command+E on OSX.
There's no way to do that at the moment.
The easiest solution would be to select your files manually (holding CTRL + click on file) and to specify "selected resources" as your search scope.
This may come too late for the original poster, but just in case somebody else needs to find out an answer, I had the same problem and found my solution by installing a plug-in named Instasearch. You can get it by going to Help/Eclipse Marketplace and searching for Instasearch.
You can find more about this plug-in in the following address.
http://marketplace.eclipse.org/content/instasearch
Spring produces a stand-alone Eclipse plugin (no dependencies on Spring) called Quick Search
http://marketplace.eclipse.org/content/quick-search-eclipse
For efficiency, it searches your open files first. So while it isn't purely restricting to opened files as you requested, you can still get a similar effect in practice by just clicking the first results that come up.
The currently opened files simply aren't considered special in eclipse - you have far more advanced methods of organizing your files: projects and working sets.
Working sets allow you to define sets of files, which can be used as constraints for many operations. You have to define them explicitly, but then they don't change just because you've closed a file.
There is no find-in-open-files command in Eclipse, no.
I think that the main reason find-in-open-files is not implemented in Eclipse is probably because the set of open files is for many users rather insignificant. (In fact, I don't know (or care) which files I have open. (I even have Eclipse set to automatically close editors/files when they become too many). If I want to navigate to a file, I open it. Limiting a search to the files I currently have open would be completely pointless for me.)