Fix parsing of double exponents in JSON (classgraph#353)

lukehutch · lukehutch · commit d8326131b1b4 · 2019-06-15T11:54:44.000-06:00
diff --git a/src/main/java/nonapi/io/github/classgraph/json/JSONParser.java b/src/main/java/nonapi/io/github/classgraph/json/JSONParser.java
@@ -248,7 +248,7 @@ private Number parseNumber() throws ParseException {
                 throw new ParseException(this, "Expected digits after decimal point");
             }
         }
-        final boolean hasExponentPart = peek() == '.';
+        final boolean hasExponentPart = peek() == 'e' || peek() == 'E';
         if (hasExponentPart) {
             next();
             final char sign = peek();
diff --git a/src/test/java/nonapi/io/github/classgraph/json/JSONParserTest.java b/src/test/java/nonapi/io/github/classgraph/json/JSONParserTest.java
@@ -1,19 +1,20 @@
 package nonapi.io.github.classgraph.json;
 
-import nonapi.io.github.classgraph.types.ParseException;
 import org.junit.Test;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Method;
-
-import static org.junit.Assert.*;
+import nonapi.io.github.classgraph.types.ParseException;
 
+/**
+ * Unit test.
+ */
 public class JSONParserTest {
+    /** Test double value. */
     @Test
     public void test1() throws ParseException {
         JSONParser.parseJSON("{\"doubleValue\":-2.147483648}");
     }
 
+    /** Test double value with exponent. */
     @Test
     public void test2() throws ParseException {
         JSONParser.parseJSON("{\"doubleValue\":-2.147483648E9}");

Original file line number	Diff line number	Diff line change
`@@ -248,7 +248,7 @@ private Number parseNumber() throws ParseException {`
`248`	`248`	`throw new ParseException(this, "Expected digits after decimal point");`
`249`	`249`	`}`
`250`	`250`	`}`
`251`		`- final boolean hasExponentPart = peek() == '.';`
	`251`	`+ final boolean hasExponentPart = peek() == 'e' \|\| peek() == 'E';`
`252`	`252`	`if (hasExponentPart) {`
`253`	`253`	`next();`
`254`	`254`	`final char sign = peek();`