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test/langtools/tools/javac/classfiles/InnerClasses/SyntheticClasses.java

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 27  *           inner_name_index zero (for synthetic classes)
 28  *  @compile SyntheticClasses.java
 29  *  @run main SyntheticClasses
 30  */
 31 
 32 import java.io.*;
 33 import java.util.*;
 34 import java.lang.classfile.*;
 35 import java.lang.classfile.attribute.*;
 36 
 37 public class SyntheticClasses {
 38 
 39     public static void main(String[] args) throws IOException {
 40         new SyntheticClasses().run();
 41     }
 42 
 43     private void run() throws IOException {
 44         File testClasses = new File(System.getProperty("test.classes"));
 45         for (File classFile : Objects.requireNonNull(testClasses.listFiles(f -> f.getName().endsWith(".class")))) {
 46             ClassModel cf = ClassFile.of().parse(classFile.toPath());





 47             if (cf.thisClass().asInternalName().matches(".*\\$[0-9]+")) {
 48                 EnclosingMethodAttribute encl = cf.findAttribute(Attributes.enclosingMethod()).orElse(null);
 49                 if (encl != null) {
 50                     if (encl.enclosingMethodName().isPresent())
 51                         throw new IllegalStateException("Invalid EnclosingMethod.method: " +
 52                                                         encl.enclosingMethodName().get().stringValue() + ".");
 53                 }
 54             }
 55             InnerClassesAttribute attr = cf.findAttribute(Attributes.innerClasses()).orElse(null);
 56             if (attr != null) {
 57                 for (InnerClassInfo info : attr.classes()) {
 58                     if (cf.majorVersion() < 51)
 59                         throw new IllegalStateException();
 60                     if (info.innerName().isEmpty() && info.outerClass().isPresent() )
 61                         throw new IllegalStateException("Invalid outer_class_info: " +
 62                                                         info.outerClass().get().asInternalName() +
 63                                                         "; inner_name is empty");
 64                 }
 65             }
 66         }

 27  *           inner_name_index zero (for synthetic classes)
 28  *  @compile SyntheticClasses.java
 29  *  @run main SyntheticClasses
 30  */
 31 
 32 import java.io.*;
 33 import java.util.*;
 34 import java.lang.classfile.*;
 35 import java.lang.classfile.attribute.*;
 36 
 37 public class SyntheticClasses {
 38 
 39     public static void main(String[] args) throws IOException {
 40         new SyntheticClasses().run();
 41     }
 42 
 43     private void run() throws IOException {
 44         File testClasses = new File(System.getProperty("test.classes"));
 45         for (File classFile : Objects.requireNonNull(testClasses.listFiles(f -> f.getName().endsWith(".class")))) {
 46             ClassModel cf = ClassFile.of().parse(classFile.toPath());
 47             if ((cf.flags().flagsMask() & (ClassFile.ACC_SYNTHETIC | ClassFile.ACC_ABSTRACT)) == ClassFile.ACC_SYNTHETIC) {
 48                 if ((cf.flags().flagsMask() & ClassFile.ACC_IDENTITY) == 0) {
 49                     throw new IllegalStateException("Missing ACC_IDENTITY on synthetic concrete identity class: " + cf.thisClass().asInternalName());
 50                 }
 51             }
 52             if (cf.thisClass().asInternalName().matches(".*\\$[0-9]+")) {
 53                 EnclosingMethodAttribute encl = cf.findAttribute(Attributes.enclosingMethod()).orElse(null);
 54                 if (encl != null) {
 55                     if (encl.enclosingMethodName().isPresent())
 56                         throw new IllegalStateException("Invalid EnclosingMethod.method: " +
 57                                                         encl.enclosingMethodName().get().stringValue() + ".");
 58                 }
 59             }
 60             InnerClassesAttribute attr = cf.findAttribute(Attributes.innerClasses()).orElse(null);
 61             if (attr != null) {
 62                 for (InnerClassInfo info : attr.classes()) {
 63                     if (cf.majorVersion() < 51)
 64                         throw new IllegalStateException();
 65                     if (info.innerName().isEmpty() && info.outerClass().isPresent() )
 66                         throw new IllegalStateException("Invalid outer_class_info: " +
 67                                                         info.outerClass().get().asInternalName() +
 68                                                         "; inner_name is empty");
 69                 }
 70             }
 71         }
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