3 files changed, 9 insertions, 5 deletions
diff --git a/src/org/traccar/helper/PatternUtil.java b/src/org/traccar/helper/PatternUtil.java
index 12536eaef..1bbb166a6 100644
--- a/src/org/traccar/helper/PatternUtil.java
+++ b/src/org/traccar/helper/PatternUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org)
+ * Copyright 2015 - 2017 Anton Tananaev (anton@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,6 +15,7 @@
  */
 package org.traccar.helper;
 
+import java.lang.management.ManagementFactory;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
@@ -49,6 +50,10 @@ public final class PatternUtil {
 
     public static MatchResult checkPattern(String pattern, String input) {
 
+        if (!ManagementFactory.getRuntimeMXBean().getInputArguments().toString().contains("-agentlib:jdwp")) {
+            throw new RuntimeException("PatternUtil usage detected");
+        }
+
         MatchResult result = new MatchResult();
 
         for (int i = 0; i < pattern.length(); i++) {
diff --git a/src/org/traccar/protocol/EskyProtocolDecoder.java b/src/org/traccar/protocol/EskyProtocolDecoder.java
index c12753881..0d3dcafb2 100644
--- a/src/org/traccar/protocol/EskyProtocolDecoder.java
+++ b/src/org/traccar/protocol/EskyProtocolDecoder.java
@@ -55,9 +55,6 @@ public class EskyProtocolDecoder extends BaseProtocolDecoder {
     protected Object decode(
             Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
 
-        org.traccar.helper.PatternUtil.MatchResult matchResult =
-                org.traccar.helper.PatternUtil.checkPattern(PATTERN.pattern(), (String) msg);
-
         Parser parser = new Parser(PATTERN, (String) msg);
         if (!parser.matches()) {
             return null;
diff --git a/test/org/traccar/helper/PatternUtilTest.java b/test/org/traccar/helper/PatternUtilTest.java
index b6b05e88c..77660078a 100644
--- a/test/org/traccar/helper/PatternUtilTest.java
+++ b/test/org/traccar/helper/PatternUtilTest.java
@@ -1,11 +1,13 @@
 package org.traccar.helper;
 
+import org.junit.Ignore;
 import org.junit.Test;
 
 import static org.junit.Assert.assertEquals;
 
 public class PatternUtilTest {
-    
+
+    @Ignore
     @Test
     public void testCheckPattern() {