hg: jdk/sandbox: 8146986: JDI: Signature lookups for unprepared classes can take a long time

[chris.hegarty at oracle.com]

Changeset: 176e8aec3097
Author:    sspitsyn
Date:      2019-03-25 19:16 -0700
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/176e8aec3097

8146986: JDI: Signature lookups for unprepared classes can take a long time
Summary: Do not cache classes if signature is not provided
Reviewed-by: sspitsyn, jcbeyler

! src/jdk.jdi/share/classes/com/sun/tools/jdi/VirtualMachineImpl.java