Copying data from inputStream to OuputStream needs appropriate buffer size

In the file:

./openejb-3.1.4-src/container/openejb-loader/src/main/java/org/apache/openejb/loader/FileUtils.java line:149

It uses a fixed buffer size as 4096.

To copy 10M data with 1024-byte buffer it takes 338,591,180 nano-second, while it takes 105,384,689 nano-second with a 10240-byte buffer.

This is similar to the Apache Bug https://issues.apache.org/bugzilla/show_bug.cgi?id=32546

Similar code can be found in the files:
./openejb-3.1.4-src/container/openejb-core/src/main/java/org/apache/openejb/util/JarExtractor.java
./openejb-3.1.4-src/container/openejb-core/src/main/java/org/apache/openejb/util/JuliLogStreamFactory.java
./openejb-3.1.4-src/container/openejb-core/src/main/java/org/apache/openejb/util/Log4jLogStreamFactory.java
./openejb-3.1.4-src/container/openejb-core/src/main/java/org/apache/openejb/util/Pipe.java
./openejb-3.1.4-src/container/openejb-javaagent/src/main/java/org/apache/openejb/javaagent/Agent.java