Channel Manager Unit test failures

8 unit test failures in addon-channel-manager:
jjava.lang.NullPointerException: null
at java.io.Reader.<init>(Reader.java:78)
at java.io.InputStreamReader.<init>(InputStreamReader.java:72)
at org.onehippo.cms7.channelmanager.AbstractJavascriptTest.injectJavascript(AbstractJavascriptTest.java:199)
at org.onehippo.cms7.channelmanager.templatecomposer.iframe.AbstractTemplateComposerTest.initializeIFrameHead(AbstractTemplateComposerTest.java:85)
at org.onehippo.cms7.channelmanager.templatecomposer.iframe.AbstractTemplateComposerTest.setUp(AbstractTemplateComposerTest.java:68)
at org.onehippo.cms7.channelmanager.templatecomposer.iframe.CmsEditContentTest.startPage(CmsEditContentTest.java:35)

org.onehippo.cms7.channelmanager.templatecomposer.iframe.CmsEditContentTest.testSurfAndEdit 0.92 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.CmsEditContentTest.clickLinkSendsMessage 0.5 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.CmsEditMenuTest.buttonReplacesHtmlComment 0.51 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.CmsEditMenuTest.clickButtonSendsMessage 1.9 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.InitializationTest.testInitialisation 1.2 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.InitializationTest.testHostToIFramePubSub 0.4 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.InitializationTest.testBuildOverlayXTypeHSTvBox 1.1 sec 1
org.onehippo.cms7.channelmanager.templatecomposer.iframe.InitializationTest.testEmptyContainerItem