Need help, new client

[justtesting]

I know there are many versions of this. but i am trying to make a new client.(DUH) I have the runescape.jar (ul6.runescape.com/runescape.jar) i have deobfusticated it(weird word) and then i got rid of the invalid host. after that i cant get past the break block errors. examples:
.\Applet_Sub1.java:379: undefined label: MISSING_BLOCK_LABEL_134
break MISSING_BLOCK_LABEL_134;
^
.\Applet_Sub1.java:382: undefined label: MISSING_BLOCK_LABEL_98
break MISSING_BLOCK_LABEL_98;
^
.\Applet_Sub1.java:390: undefined label: MISSING_BLOCK_LABEL_134
break MISSING_BLOCK_LABEL_134;
^
Note: .\Class53.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
3 errors
*.class : no such file or directory


after that i cant find anything else to edit. when i remove the labels it does something else. It gives 100 errors :\ that and i just removed the method19 (the method that shows the error page like invalidhost and wrongjava and such) and again i keep the block error. anyone help me? i know using this will get me banned so i am tryin to get it to load then i can get the new client. find all the files it links to. Download them. and make a new client all together.(and Silab isnt one step ahead of the rest anymore) and after this. i need to find out how to make item Dumps lol im a noob