java source code minifier?

java source code minifier?

References

Reference NO 1

http://stackoverflow.com/questions/13635421/java-source-code-minifier

Reference NO 2

http://en.wikipedia.org/wiki/Minification_(programming)

Reference NO 3

http://yui.github.io/yuicompressor/

Reference NO 4

http://code.google.com/p/wro4j/

Reference NO 5

http://jscompress.com/

Reference NO 6

http://jsbeautifier.org/

Reference NO 7

http://grepcode.com/file/repo1.maven.org/maven2/com.liferay.portal/portal-impl/6.0.2/com/liferay/portal/servlet/filters/minifier/MinifierFilter.java

Reference NO 8

http://blogs.wrox.com/article/4-javascript-minifiers-compared/