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I try to integrate maven in my eclipse helios by clicking in eclipse marketplace.
But when it becomes to install software , I have this error :
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=).
Comparison method violates its general contract!
Comparison method violates its general contract!
How can I resolve this please !!
Hi I assume you are running Eclipse Helios on a Machine that has a Java 7 JRE/JDK installed that is used by Eclipse. There is a known Bug that leads to this behavior because the Java Contract of the integrated sort algorithm has changed.
When you install (or use an already installed) Java 6 JRE/JDK to run Eclipse this should solve the problem.
To make sure the correct Java Installation is used for Eclipse edit the
eclipse.iniin your Eclipse installation folder and add the following two lines at the beginning:After that all should work as expected. In newer Indigo releases this is fixed.