8240555: Using env of JAVA_TOOL_OPTIONS and _JAVA_OPTIONS breaks Quie…

…tOption.java test

Backport-of: 2eaeb20

test/langtools/jdk/javadoc/tool/QuietOption.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,6 +32,7 @@
 import java.io.File;
 import java.io.InputStreamReader;
 import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 
 /**
@@ -65,6 +66,18 @@ void run1() throws Exception {
                 "-quiet",
                 new File(testSrc, thisClassName + ".java").getPath());
 
+        if (!output.isEmpty()) {
+            // Remove any lines that might have been generated by the runtime
+            Iterator<String> iter = output.iterator();
+            while (iter.hasNext()) {
+                String line = iter.next();
+                if (line.matches("^Picked up .*JAVA.*OPTIONS:.*")) {
+                    System.out.println("IGNORING: " + line);
+                    iter.remove();
+                }
+            }
+        }
+
         if (!output.isEmpty()) {
             System.out.println(output);
             throw new Exception("run1: Shhh!, very chatty javadoc!.");