Problem updating Eclipse (3.7.1 update)

Question

I'my trying to install update Eclipse IDE for Java EE Developers 1.4.1.20110909-1818 in my Eclipse 3.7. During update process a few times appears error

Multiple problems have occurred. 
An internal error occurred during: "Install download2". 
Instal download0 
Install download2

Finally error occurres:

An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=).
Problems downloading artifact: osgi.bundle,org.eclipse.jdt.debug,3.7.1.v20110802_r371.
File has invalid content:C:\Users\mich\AppData\Local\Temp\signatureFile3896558922293152803.jar
Invalid content:jdi.jar
The file "jdi.jar" in the jar "C:\Users\mich\AppData\Local\Temp\signatureFile3896558922293152803.jar" has been tampered!
Invalid content:jdimodel.jar
The file "jdimodel.jar" in the jar "C:\Users\mich\AppData\Local\Temp\signatureFile3896558922293152803.jar" has been tampered!
Problems downloading artifact: osgi.bundle,org.eclipse.jdt.launching,3.6.1.v20110803_r371.
File has invalid content:C:\Users\mich\AppData\Local\Temp\signatureFile4063890567513991593.jar
Invalid content:lib/launchingsupport.jar
The file "lib/launchingsupport.jar" in the jar "C:\Users\mich\AppData\Local\Temp\signatureFile4063890567513991593.jar" has been tampered!

Answer 1

I think you're using JRE7, please try with JRE6

Answer 2

When using Eclipse 3.7 with JDK 1.7, downloads where taking extremely long and occasionally giving me download1 and download2 errors.

After updating to 3.7.1 it downloaded without error. You can switch to JDK/JRE 1.6 to perform the update if you already have an installation you like.