The remote Debian host is missing a security-related update.
It was discovered that rebinding a receiver of a direct method handle may allow a protected method to be accessed.
Upgrade the openjdk-7 packages. For the oldstable distribution (wheezy), this problem has been fixed in version 7u91-2.6.3-1~deb7u1. For the stable distribution (jessie), this problem has been fixed in version 7u91-2.6.3-1~deb8u1.