Getting a lightweight installation of Java Eclipse

You can use a thirdparty distribution builder like Yoxos and download just what you want.

The "Eclipse IDE for Java Developers" version isn't the smallest one! Look for "Eclipse Classic" - it doesn't contain most of the things you mentioned. It's larger in download size only, because it comes with source code.

See this comparison: http://www.eclipse.org/downloads/compare.php

You can download the empty Eclipse platform and then manually install the JDT tools.

1. Go to the The Eclipse Project Downloads page.
2. Choose the bundle you want, probably Latest Release.
3. On the download page of the chosen bundle:
   1. Download Platform Runtime Binary
   2. Download JDT Runtime Binary
4. Extract the Platform Runtime Binary archive file and run it (for example, by double clicking on eclipse.exe).
5. Install the JDT binary:
   1. Click Help → Install New Software → Add... → Archive.
   2. Choose the JDT zip file you downloaded.
   3. Uncheck Group Items by category.
   4. Select the Eclipse Java Development Tools.
   5. Click next to install and restart Eclipse when prompted.

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JDT from the Eclipse update site

You can also install JDT from the Eclipse update site, instead of downloading the binary.

To do this, do this following:

1. Skip downloading the JDT Runtime Binary, only download, extract and run the Platform Runtime Binary.
2. Go to the Install New Software, but instead of Archive chose the Eclipse download site.
3. Search and install Eclipse Java Development Tools.