fixup! JBR-9238 Introduce distinct test groups for Vulkan runs

src/hotspot/share/services/attachListener.cpp

@@ -172,8 +172,8 @@ volatile AttachListenerState AttachListener::_state = AL_NOT_INITIALIZED;
 
 AttachAPIVersion AttachListener::_supported_version = ATTACH_API_V1;
 
-// Default is true (if jdk.attach.vm.streaming property is not set).
-bool AttachListener::_default_streaming_output = true;
+// Default is false (if jdk.attach.vm.streaming property is not set).
+bool AttachListener::_default_streaming_output = false;
 
 static bool get_bool_sys_prop(const char* name, bool default_value, TRAPS) {
   ResourceMark rm(THREAD);

src/jdk.attach/share/classes/sun/tools/attach/HotSpotVirtualMachine.java

@@ -63,8 +63,10 @@ public abstract class HotSpotVirtualMachine extends VirtualMachine {
     static {
         String s = VM.getSavedProperty("jdk.attach.allowAttachSelf");
         ALLOW_ATTACH_SELF = "".equals(s) || Boolean.parseBoolean(s);
+        // For now the default is false because it makes jstack hang with
+        // buffer overflow on lengthy outputs, which occur often in automatic tests.
         String s2 = VM.getSavedProperty("jdk.attach.allowStreamingOutput");
-        ALLOW_STREAMING_OUTPUT = !("false".equals(s2));
+        ALLOW_STREAMING_OUTPUT = "".equals(s2) || Boolean.parseBoolean(s2);
     }
 
     private final boolean selfAttach;

test/jdk/TEST.groups

@@ -447,14 +447,8 @@ jdk_editpad = \
 
 jbr_all = \
      jb \
-     -jb/java/awt/wayland/VulkanBlitTest.java \
-     -jb/java/awt/wayland/RobotGetPixelsTest.java \
-     -jb/java/awt/wayland/ImageTransformTest.java \
-     -jb/java/awt/wayland/VulkanGCCompatibilityTest.java \
-     -jb/java/awt/wayland/RobotGetPixelTest.java \
-     -jb/java/awt/wayland/RobotGetOOBPixelsTest.java \
-     -jb/java/awt/wayland/VulkanCompositeTest.java \
-     -jb/java/awt/wayland/VulkanMaskFillTest.java
+     -jb/java/awt/vulkan \
+     -jb/java/awt/wayland/vulkan \
 
 jdk_desktop = \
     :jdk_desktop_part1 \
@@ -823,6 +817,7 @@ jdk_since_checks = \
 jdk_awt_wayland = \
     :jdk_awt \
     jb/java/awt/wayland \
+    -jb/java/awt/wayland/vulkan \
     jb/java/awt/Focus/ActivateAfterHide.java \
     -com/apple/eawt \
     -com/apple/laf \