Unable to install Groovy Eclipse after installing Gradle

Running into the same issue as originally reported in STS-1966.

• Fresh install of STS 2.7.1.RELEASE
• Install Gradle extension
• Install Groovy Eclipse extension, receive below error:

  Problems occurred while performing installation: Operation details
  Operation details
  Cannot complete the install because of a conflicting dependency.
  Software being installed: Groovy-Eclipse Feature 2.5.2.xx-20110811-0900-e37 (org.codehaus.groovy.eclipse.feature.feature.group 2.5.2.xx-20110811-0900-e37)
  Software currently installed: Shared profile 1.0.0.1310203805388 (SharedProfile_com.springsource.sts.ide 1.0.0.1310203805388)
  Software currently installed: SpringSource Tool Suite Gradle Integration 2.7.0.201106290413-RELEASE (com.springsource.sts.gradle.feature.feature.group 2.7.0.201106290413-RELEASE)
  Only one of the following can be installed at once: 
  Java Development Tools Core 3.7.0.v_B61 (org.eclipse.jdt.core 3.7.0.v_B61)
  Java Development Tools Core 3.7.0.xx-20110811-0900-e37 (org.eclipse.jdt.core 3.7.0.xx-20110811-0900-e37)
  Cannot satisfy dependency:
  From: Shared profile 1.0.0.1310203805388 (SharedProfile_com.springsource.sts.ide 1.0.0.1310203805388)
  To: org.eclipse.jdt.core [3.7.0.v_B61]
  Cannot satisfy dependency:
  From: SpringSource Tool Suite (required) 2.7.1.201107091000-RELEASE (com.springsource.sts.feature.group 2.7.1.201107091000-RELEASE)
  To: org.springframework.ide.eclipse.feature.feature.group [2.7.1,3.0.0)
  Cannot satisfy dependency:
  From: SpringSource Tool Suite Gradle Integration 2.7.0.201106290413-RELEASE (com.springsource.sts.gradle.feature.feature.group 2.7.0.201106290413-RELEASE)
  To: com.springsource.sts.feature.group 0.0.0
  Cannot satisfy dependency:
  From: Groovy-Eclipse Feature 2.5.2.xx-20110811-0900-e37 (org.codehaus.groovy.eclipse.feature.feature.group 2.5.2.xx-20110811-0900-e37)
  To: org.codehaus.groovy.jdt.patch.feature.group [2.1.3.xx-20110811-0900-e37]
  Cannot satisfy dependency:
  From: Spring IDE Core (required) 2.7.1.201107082359-RELEASE (org.springframework.ide.eclipse.feature.feature.group 2.7.1.201107082359-RELEASE)
  To: org.eclipse.jdt.feature.group 3.3.0
  Cannot satisfy dependency:
  From Patch: org.codehaus.groovy.jdt.patch.feature.group 2.1.3.xx-20110811-0900-e37 Eclipse Java Development Tools 3.7.0.v20110520-0800-7z8gFchFMTdFYKuLqBLqRja9B15B (org.eclipse.jdt.feature.group 3.7.0.v20110520-0800-7z8gFchFMTdFYKuLqBLqRja9B15B)
  To: org.eclipse.jdt.core [3.7.0.xx-20110811-0900-e37]