diff --git a/runtime/Java/src/org/antlr/v4/runtime/misc/Interval.java b/runtime/Java/src/org/antlr/v4/runtime/misc/Interval.java
index 1dd949442f..a07d035407 100644
--- a/runtime/Java/src/org/antlr/v4/runtime/misc/Interval.java
+++ b/runtime/Java/src/org/antlr/v4/runtime/misc/Interval.java
@@ -16,11 +16,6 @@ public class Interval {
 	public int a;
 	public int b;
 
-	public static int creates = 0;
-	public static int misses = 0;
-	public static int hits = 0;
-	public static int outOfRange = 0;
-
 	public Interval(int a, int b) { this.a=a; this.b=b; }
 
 	/** Interval objects are used readonly so share all with the
diff --git a/tool-testsuite/test/org/antlr/v4/test/tool/TestATNParserPrediction.java b/tool-testsuite/test/org/antlr/v4/test/tool/TestATNParserPrediction.java
index 51a1f91859..6831287813 100644
--- a/tool-testsuite/test/org/antlr/v4/test/tool/TestATNParserPrediction.java
+++ b/tool-testsuite/test/org/antlr/v4/test/tool/TestATNParserPrediction.java
@@ -491,7 +491,6 @@ public class TestATNParserPrediction {
 	public void checkPredictedAlt(LexerGrammar lg, Grammar g, int decision,
 	                              String inputString, int expectedAlt)
 	{
-		Tool.internalOption_ShowATNConfigsInDFA = true;
 		ATN lexatn = createATN(lg, true);
 		LexerATNSimulator lexInterp =
 		new LexerATNSimulator(lexatn,new DFA[] { new DFA(lexatn.modeToStartState.get(Lexer.DEFAULT_MODE)) },new PredictionContextCache());
diff --git a/tool/src/org/antlr/v4/Tool.java b/tool/src/org/antlr/v4/Tool.java
index 951f0ef6bb..1b7eea7535 100644
--- a/tool/src/org/antlr/v4/Tool.java
+++ b/tool/src/org/antlr/v4/Tool.java
@@ -139,10 +139,6 @@ public Option(String fieldName, String name, OptionArgType argType, String descr
 	protected boolean haveOutputDir = false;
 	protected boolean return_dont_exit = false;
 
-    // The internal options are for my use on the command line during dev
-    public static boolean internalOption_PrintGrammarTree = false;
-    public static boolean internalOption_ShowATNConfigsInDFA = false;
-
 
 	public final String[] args;
 
@@ -365,7 +361,6 @@ public void process(Grammar g, boolean gencode) {
 
 	public void processNonCombinedGrammar(Grammar g, boolean gencode) {
 		if ( g.ast==null || g.ast.hasErrors ) return;
-		if ( internalOption_PrintGrammarTree ) System.out.println(g.ast.toStringTree());
 
 		boolean ruleFail = checkForRuleIssues(g);
 		if ( ruleFail ) return;
diff --git a/tool/src/org/antlr/v4/misc/Utils.java b/tool/src/org/antlr/v4/misc/Utils.java
index 35d435bce8..06d8a6f48b 100644
--- a/tool/src/org/antlr/v4/misc/Utils.java
+++ b/tool/src/org/antlr/v4/misc/Utils.java
@@ -31,8 +31,6 @@ public interface Func1<T1, TResult> {
 		TResult exec(T1 arg1);
 	}
 
-	static Integer[] ints = new Integer[INTEGER_POOL_MAX_VALUE+1];
-
     public static String stripFileExtension(String name) {
         if ( name==null ) return null;
         int lastDot = name.lastIndexOf('.');