Karsten Thoms Messages: 353 Registered: July 2009 Location: Dortmund
Eclipse does not know by default that your JDK 1.7 is a match for J2SE-1.5 environment. This can be set as workspace setting. Open setting Java/Installed JREs/Execution Environments/J2SE-1.5.
On the right side of the dialog your JDK should appear. Check the option there.
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Twitter : @kthoms
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