misc files with executable bit

A few stray java files set as executable:

% find . -type f -executable
./apis/swift/src/test/java/org/jclouds/openstack/swift/keystone/AccessKeyAndSecretKeyAndTenantIdAuthenticationExpectTest.java
./apis/swift/src/test/java/org/jclouds/openstack/swift/keystone/AccessKeyAndSecretKeyAuthenticationExpectTest.java
./providers/azureblob/src/main/java/org/jclouds/azureblob/blobstore/strategy/MultipartUploadStrategy.java
./providers/azureblob/src/main/java/org/jclouds/azureblob/domain/internal/BlobBlockPropertiesImpl.java
./providers/azureblob/src/main/java/org/jclouds/azureblob/xml/BlobBlocksResultsHandler.java