Can we avoid string interning in java?

Question

Can we completely disable string interning. This may not be very useful, but just a thought. I can think of at least one point where this might be useful, for example, during jvm setup, controlling the size of perm gen.

For example, if I give the OSGI infrastructure, and everyone can add any number of their own packages, and each set of lines inside the line can completely ruin my settings. (Of course, I know that we need to tune in to a specific fixed distribution, but still ...)

Any thoughts!

Answer 1

/ JVM. , .

( , "" ).

Answer 2

, . char [] . .

String hi = new String(new char[] { 'h', 'i' }); // not interned.

, .

OSGI, ,

, , , , NewSize, GC. - OSGi.

, , .

Answer 3

Oracle Java 7, PerGen. http://java-performance.info/string-intern-in-java-6-7-8/

Answer 4

String is final class and can not be extended. Therefore, no - you cannot remove the ability to put lines in Java.