java - IllegalArgumentException at URLPermission in jre8 -



java - IllegalArgumentException at URLPermission in jre8 -

when run code below,

-in applet on jre8, on line con.getinputstream() throws exception

-in applet on jre7 or jre6 it not throws.

-in desktop app on jre it not throws.

when remove lines starts setrequestpropery, does not throws exception on jre.

urlconnection con = new url(adress).openconnection(); con.setdooutput(true); con.setdoinput(true); con.setusecaches(false); con.setrequestproperty("content-type", "application/octet-stream"); con.setrequestproperty("pragma:", "no-cache"); printstream ps = new printstream(con.getoutputstream()); ps.println("test"); ps.close(); in = new datainputstream(conn.getinputstream());

exception:

java.lang.illegalargumentexception: invalid actions string @ java.net.urlpermission.init(unknown source) @ java.net.urlpermission.<init>(unknown source) @ sun.net.www.protocol.http.httpurlconnection.urltosocketpermission(unknown source) @ sun.net.www.protocol.http.httpurlconnection.getoutputstream(unknown source)

in applet, trying open connection , need request properties.

do know causes exception on jre8? , why in applet , not desktopapp.

debugin code snippet in applet, shows parameter actions passed urlpermission, ist new win java8, has value get:pragma: not valid according javadoc argument:

the actions string of urlpermission concatenation of method list , request headers list. these lists of permitted request methods , permitted request headers of permission (respectively). 2 lists separated colon ':' character , elements of each list comma separated. examples are:

"post,get,delete" "get:x-foo-request,x-bar-request" "post,get:header1,header2"

and according code in oracle's jdk8:

int colon = actions.indexof(':'); if (actions.lastindexof(':') != colon) { throw new illegalargumentexception("invalid actions string"); }

the code above expects 1 single colon or none.

to solve problem need remove colon after pragma in call

con.setrequestproperty("pragma", "no-cache");

running snippet simple junit test not provoke exception, because urlpermition class not invoked. whether invoked or not depends on context application running.

note. depending on context of use, request methods , headers may permitted @ times, , others may not permitted @ time. example, http protocol handler might disallow headers such content-length beingness set application code, regardless of whether security policy in force, permits it.

so seems, when in context of applet permition checks performed.

java applet httpurlconnection japplet illegalargumentexception

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