Caught that a few Arquillian classes are directly depending upon ShrinkWrap internals, for which we cannot provide guarantee of consistency between releases.

[alr@localhost trunk]$ egrep 'shrinkwrap.impl' -R . |grep .java
./demo/src/test/java/com/acme/cdi/InjectionTestCase.java:import org.jboss.shrinkwrap.impl.base.asset.ByteArrayAsset;
./demo/src/test/java/com/acme/cdi/.svn/text-base/InjectionTestCase.java.svn-base:import org.jboss.shrinkwrap.impl.base.asset.ByteArrayAsset;
./impl-base/src/main/java/org/jboss/arquillian/impl/ArquillianDeploymentAppender.java: Package.getPackage("org.jboss.shrinkwrap.impl.base"),
./impl-base/src/main/java/org/jboss/arquillian/impl/.svn/text-base/ArquillianDeploymentAppender.java.svn-base: Package.getPackage("org.jboss.shrinkwrap.impl.base"),
./junit/src/main/java/org/jboss/arquillian/junit/JUnitTestRunner.java:import org.jboss.shrinkwrap.impl.base.Validate;
./junit/src/main/java/org/jboss/arquillian/junit/.svn/text-base/JUnitTestRunner.java.svn-base:import org.jboss.shrinkwrap.impl.base.Validate;
./testng/src/main/java/org/jboss/arquillian/testng/TestNGTestRunner.java:import org.jboss.shrinkwrap.impl.base.Validate;
./testng/src/main/java/org/jboss/arquillian/testng/.svn/text-base/TestNGTestRunner.java.svn-base:import org.jboss.shrinkwrap.impl.base.Validate;
./demo-testng/src/test/java/com/acme/cdi/InjectionTestCase.java:import org.jboss.shrinkwrap.impl.base.asset.ByteArrayAsset;
./demo-testng/src/test/java/com/acme/cdi/.svn/text-base/InjectionTestCase.java.svn-base:import org.jboss.shrinkwrap.impl.base.asset.ByteArrayAsset;

Likely we'll want to evaluate these dependencies and instead move to API-only (for compile time, runtime requiring ShrinkWrap impls in "test" scope).