Summary

Remove specialized readXxxEntry methods from ClassReader.

Problem

ClassReader provides a generic, type-aware readEntry to read an entry of a desired type, but there are still specialized methods for reading entries of different kinds; these methods bloat up the API.

Solution

Remove the specialized methods; users can always call readEntry(offset, DesiredPoolEntry.class) or readEntryOrNull(offset, DesiredPoolEntry.class) instead.

Specification

diff --git a/src/java.base/share/classes/java/lang/classfile/ClassReader.java b/src/java.base/share/classes/java/lang/classfile/ClassReader.java
index 7b181180c6f..ef4a36729e6 100644
--- a/src/java.base/share/classes/java/lang/classfile/ClassReader.java
+++ b/src/java.base/share/classes/java/lang/classfile/ClassReader.java
@@ -130,77 +126,6 @@ public sealed interface ClassReader extends ConstantPool
      */
     <T extends PoolEntry> T readEntryOrNull(int offset, Class<T> cls);

-    /**
-     * {@return the UTF8 entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a UTF8 entry
-     */
-    Utf8Entry readUtf8Entry(int offset);
-
-    /**
-     * {@return the UTF8 entry whose index is given at the specified
-     * offset within the classfile, or null if the index at the specified
-     * offset is zero}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or the index does not correspond to
-     *         a UTF8 entry
-     */
-    Utf8Entry readUtf8EntryOrNull(int offset);
-
-    /**
-     * {@return the module entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a module entry
-     */
-    ModuleEntry readModuleEntry(int offset);
-
-    /**
-     * {@return the package entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a package entry
-     */
-    PackageEntry readPackageEntry(int offset);
-
-    /**
-     * {@return the class entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a class entry
-     */
-    ClassEntry readClassEntry(int offset);
-
-    /**
-     * {@return the name-and-type entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a name-and-type entry
-     */
-    NameAndTypeEntry readNameAndTypeEntry(int offset);
-
-    /**
-     * {@return the method handle entry whose index is given at the specified
-     * offset within the classfile}
-     * @param offset the offset of the index within the classfile
-     * @throws ConstantPoolException if the index is out of range of the
-     *         constant pool size, or zero, or the index does not correspond to
-     *         a method handle entry
-     */
-    MethodHandleEntry readMethodHandleEntry(int offset);
-
     /**
      * {@return the unsigned byte at the specified offset within the classfile}
      * @param offset the offset within the classfile