Why Is My Eclipse Code Completion Not Working After Installing Plugins?

Troubleshooting Eclipse Code Completion Failure

In Eclipse, Java code completion is an indispensable feature that streamlines coding. However, users may occasionally encounter issues where code completion ceases to function. If you have experienced this problem after installing Eclipse 3.4.2 along with EPIC, Clearcase, QuantumDB, and MisterQ plugins, consider investigating the following solution:

Restoring the Default Content Assist Options

Often, the culprit for failed code completion lies in modified preferences. Navigate to "Windows > Preferences > Java > Editor > Content Assist > Advanced." Within this preference screen, you will find a list of options related to content assist behavior.

Resetting the Default List

In the preferences, locate the "Additional Content Assist Processors" section. Ensure that the following options are selected in the default list:

• Other Java Proposals
• SWT Template Proposals
• Template Proposals
• Type Proposals

This configuration aligns with the recommended default list provided by the Eclipse help page. Resetting these options should resolve the code completion issues.

If you have duplicate Mylyn entries, uncheck the entries that do not contain "(Mylyn)" in their name to further refine the content assist functionality.

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