Revert "Revert "Print full diagnostics file when Java process crashes.""

This reverts commit d71dc6b5e0b01e4835a033bb51c278a10b0c1481.

Reason for revert: ag/974065 fixes the problem that caused the revert

Change-Id: I3ba9eecdab34602aaf19fa518520ac932c9b97af
diff --git a/java/app_builder.go b/java/app_builder.go
index 82a390f..cfe75f9 100644
--- a/java/app_builder.go
+++ b/java/app_builder.go
@@ -31,7 +31,7 @@
 var (
 	Signapk = pctx.AndroidStaticRule("signapk",
 		blueprint.RuleParams{
-			Command: `${config.JavaCmd} -Djava.library.path=$$(dirname $signapkJniLibrary) ` +
+			Command: `${config.JavaCmd} ${config.JavaVmFlags} -Djava.library.path=$$(dirname $signapkJniLibrary) ` +
 				`-jar $signapkCmd $flags $certificates $in $out`,
 			CommandDeps: []string{"$signapkCmd", "$signapkJniLibrary"},
 		},