Check for the existence of the next significant bracket (#985)

json-path/src/main/java/com/jayway/jsonpath/internal/path/PathCompiler.java

@@ -625,7 +625,11 @@ private boolean readBracketPropertyToken(PathTokenAppender appender) {
             fail("Property has not been closed - missing closing " + potentialStringDelimiter);
         }
 
-        int endBracketIndex = path.indexOfNextSignificantChar(endPosition, CLOSE_SQUARE_BRACKET) + 1;
+        int endBracketIndex = path.indexOfNextSignificantChar(endPosition, CLOSE_SQUARE_BRACKET);
+        if(endBracketIndex == -1) {
+            fail("Property has not been closed - missing closing ]");
+        }
+        endBracketIndex++;
 
         path.setPosition(endBracketIndex);
 

json-path/src/test/java/com/jayway/jsonpath/Issue_970.java

@@ -0,0 +1,12 @@
+package com.jayway.jsonpath;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThatNoException;
+
+public class Issue_970 {
+    @Test
+    public void shouldNotCauseStackOverflow() {
+        assertThatNoException().isThrownBy(() -> Criteria.where("[']',"));
+    }
+}

json-path/src/test/java/com/jayway/jsonpath/Issue_973.java

@@ -0,0 +1,12 @@
+package com.jayway.jsonpath;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.*;
+
+public class Issue_973 {
+    @Test
+    public void shouldNotCauseStackOverflow() {
+        assertThatNoException().isThrownBy(() -> Criteria.parse("@[\"\",/\\"));
+    }
+}