Java PackTest, PackTest03 do not compile

Recent changes to PackOutputStream made java examples stop compiling, for example:

test/java/com/wiredtiger/test/PackTest.java:76: error: constructor PackOutputStream in class PackOutputStream cannot be applied to given types;
PackOutputStream packer = new PackOutputStream(format);
^
required: String,boolean
found: String
reason: actual and formal argument lists differ in length