8235530: Removed duplicated threadByName methods in nsk/jdi tests

Reviewed-by: dholmes, sspitsyn

Author: lmesnik

test/hotspot/jtreg/vmTestbase/nsk/jdi/BooleanType/_itself_/booleantype001.java

@@ -142,13 +142,6 @@ private static void log3(String message) {
 
     static int  testExitCode = PASSED;
 
-
-    class JDITestRuntimeException extends RuntimeException {
-        JDITestRuntimeException(String str) {
-            super("JDITestRuntimeException : " + str);
-        }
-    }
-
     //------------------------------------------------------ methods
 
     private int runThis (String argv[], PrintStream out) {
@@ -292,7 +285,7 @@ private void testRun()
         String lineForComm  = "lineForComm";
         BreakpointRequest bpRequest;
 
-        bpRequest = settingBreakpoint(threadByName("main"),
+        bpRequest = settingBreakpoint(debuggee.threadByNameOrThrow("main"),
                                       debuggeeClass,
                                       bPointMethod, lineForComm, "zero");
         bpRequest.enable();
@@ -347,20 +340,6 @@ private void testRun()
         return;
     }
 
-    private ThreadReference threadByName(String name)
-                 throws JDITestRuntimeException {
-
-        List         all = vm.allThreads();
-        ListIterator li  = all.listIterator();
-
-        for (; li.hasNext(); ) {
-            ThreadReference thread = (ThreadReference) li.next();
-            if (thread.name().equals(name))
-                return thread;
-        }
-        throw new JDITestRuntimeException("** Thread IS NOT found ** : " + name);
-    }
-
    /*
     * private BreakpointRequest settingBreakpoint(ThreadReference, ReferenceType,
     *                                             String, String, String)

test/hotspot/jtreg/vmTestbase/nsk/jdi/BreakpointRequest/addInstanceFilter/instancefilter002.java

@@ -155,12 +155,6 @@ private static void log3(String message) {
     static int  testExitCode = PASSED;
 
 
-    class JDITestRuntimeException extends RuntimeException {
-        JDITestRuntimeException(String str) {
-            super("JDITestRuntimeException : " + str);
-        }
-    }
-
     //------------------------------------------------------ methods
 
     private int runThis (String argv[], PrintStream out) {
@@ -310,7 +304,7 @@ private void testRun()
         String bPointMethod = "methodForCommunication";
         String lineForComm  = "lineForComm";
 
-        ThreadReference   mainThread = threadByName("main");
+        ThreadReference   mainThread = debuggee.threadByNameOrThrow("main");
 
         BreakpointRequest bpRequest = settingBreakpoint(mainThread,
                                              debuggeeClass,
@@ -419,20 +413,6 @@ private void testRun()
         return;
     }
 
-    private ThreadReference threadByName(String name)
-                 throws JDITestRuntimeException {
-
-        List         all = vm.allThreads();
-        ListIterator li  = all.listIterator();
-
-        for (; li.hasNext(); ) {
-            ThreadReference thread = (ThreadReference) li.next();
-            if (thread.name().equals(name))
-                return thread;
-        }
-        throw new JDITestRuntimeException("** Thread IS NOT found ** : " + name);
-    }
-
    /*
     * private BreakpointRequest settingBreakpoint(ThreadReference, ReferenceType,
     *                                             String, String, String)