Prevent NPE if source method does not have a line number table

Guardsquare · Jul 3, 2023 · 3063e20 · 3063e20
1 parent 5694a24
commit 3063e20
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/base/src/main/java/proguard/classfile/editor/MethodCopier.java b/base/src/main/java/proguard/classfile/editor/MethodCopier.java
@@ -137,8 +137,12 @@ private static class MyLineFixer implements AttributeVisitor
 
         public void visitCodeAttribute(Clazz sourceClass, Method sourceMethod, CodeAttribute sourceMethodCodeAttribute) {
             LineNumberTableAttribute sourceMethodLineNumberTableAttribute = (LineNumberTableAttribute) sourceMethodCodeAttribute.getAttribute(sourceClass, Attribute.LINE_NUMBER_TABLE);
-            int                      lowestLineNumber                     = sourceMethodLineNumberTableAttribute.getLowestLineNumber();
-            int                      highestLineNumber                    = sourceMethodLineNumberTableAttribute.getHighestLineNumber();
+            int                      lowestLineNumber                     = sourceMethodLineNumberTableAttribute == null
+                                                                                ? 0
+                                                                                : sourceMethodLineNumberTableAttribute.getLowestLineNumber();
+            int                      highestLineNumber                    = sourceMethodLineNumberTableAttribute == null
+                                                                                ? 0
+                                                                                : sourceMethodLineNumberTableAttribute.getHighestLineNumber();
 
             String newSource = initializeLineNumberInfoSource(sourceClass,
                                                               sourceMethod,