8345622: test/langtools/tools/javac/annotations/parameter/ParameterAnnotations.java should set processorpath to work correctly in the agentvm mode

Reviewed-by: darcy, liach

Author: lahodaj

test/langtools/tools/javac/annotations/parameter/ParameterAnnotations.java

@@ -640,8 +640,9 @@ private void doTest(Path base, String code, String binaryNameToCheck,
         }
 
         Task.Result result = new JavacTask(tb)
-                .processors(new TestAP())
                 .options("-classpath", classes.toString(),
+                        "-processorpath", System.getProperty("test.classes"),
+                        "-processor", TestAP.class.getName(),
                         "-XDrawDiagnostics",
                         "-Xlint:classfile")
                 .outdir(classes)