Why Doesn't Code Completion Work in My Eclipse 3.4.2?

Troubleshooting Eclipse's Code Completion Failure

Despite setting up Eclipse 3.4.2, code completion remains unresponsive, displaying "No Default Proposals" upon pressing Ctrl Space. Here's how to address this issue:

Solution: Reset Content Assist Preferences

Navigate to:

• Windows > Preferences
• Java > Editor > Content Assist > Advanced

In the "Advanced" tab, click on the Restore Defaults button to restore the default content assist list. This list includes the following proposal kinds:

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

As noted by Vadim in the blog post "Content Assist Duplicates in Eclipse (Mylyn)," it's crucial to uncheck any duplicate Mylyn entries that do not contain "(Mylyn)" in their name if they persist.

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