Fixed issue #140

src/test/java/com/openpojo/validation/utils/AClassWithSyntheticStaticFieldDumper.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2010-2021 Osman Shoukry
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied.
+ *
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.openpojo.validation.utils;
+
+
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.FieldVisitor;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+/**
+ * this class dumps a class that looks like this:
+ *
+ * public class AClassWithSytheticStringField {
+ *   private static "synthetic" String syntheticStaticString;
+ * }
+ */
+public class AClassWithSyntheticStaticFieldDumper implements Opcodes {
+  public static byte[] dump(String className) {
+    ClassWriter cw = new ClassWriter(0);
+    FieldVisitor fv;
+    MethodVisitor mv;
+
+    cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, className, null, "java/lang/Object", null);
+
+    {
+      fv = cw.visitField(ACC_PRIVATE + ACC_STATIC + ACC_SYNTHETIC, "syntheticStaticString", "Ljava/lang/String;", null, null);
+      fv.visitEnd();
+    }
+    {
+      mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
+      mv.visitCode();
+      mv.visitVarInsn(ALOAD, 0);
+      mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
+      mv.visitInsn(RETURN);
+      mv.visitMaxs(1, 1);
+      mv.visitEnd();
+    }
+    cw.visitEnd();
+
+    return cw.toByteArray();
+  }
+}