ISTWCMS-5809: using the interface for module handler so that things work correctly

requested review from @lily.yan

assigned to @ebremner

added 5 commits

• 7bc40d84...a133a7b8 - 4 commits from branch 1.0.x
• 5af48667 - ISTWCMS-5809: using the interface for module handler so that things work correctly

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requested review from @ibiki and removed review request for @lily.yan

mentioned in commit d218ced8

merged