It appears that the Springsource Tool Suite is not installing Maven.

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The Springsource Tool Suite (STS) does include Maven by default, so it should be installed if you've downloaded and installed STS from the official source.

If you're having trouble using Maven within STS, make sure to check your Maven settings and ensure that your projects are configured to use the correct version of Maven.

If you're still having issues, you can try contacting the STS support team or the Maven community for additional assistance.