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8340132: Remove internal CpException for reading malformed utf8

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Reviewed-by: asotona
This commit is contained in:
Chen Liang 2024-09-17 21:08:47 +00:00
parent f0ae90f30c
commit dfc90938ba
1 changed files with 9 additions and 13 deletions
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22
src/java.base/share/classes/jdk/internal/classfile/impl/AbstractPoolEntry.java
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@ -24,6 +24,7 @@
*/ */
package jdk.internal.classfile.impl; package jdk.internal.classfile.impl;
import java.lang.classfile.constantpool.ConstantPoolException;
import java.lang.constant.*; import java.lang.constant.*;
import java.lang.invoke.TypeDescriptor; import java.lang.invoke.TypeDescriptor;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
@ -258,11 +259,11 @@ public abstract sealed class AbstractPoolEntry {
// 110x xxxx 10xx xxxx // 110x xxxx 10xx xxxx
px += 2; px += 2;
if (px > utfend) { if (px > utfend) {
throw new CpException("malformed input: partial character at end"); throw malformedInput(utfend);
} }
int char2 = rawBytes[px - 1]; int char2 = rawBytes[px - 1];
if ((char2 & 0xC0) != 0x80) { if ((char2 & 0xC0) != 0x80) {
throw new CpException("malformed input around byte " + px); throw malformedInput(px);
} }
char v = (char) (((c & 0x1F) << 6) | (char2 & 0x3F)); char v = (char) (((c & 0x1F) << 6) | (char2 & 0x3F));
chararr[chararr_count++] = v; chararr[chararr_count++] = v;
@ -273,12 +274,12 @@ public abstract sealed class AbstractPoolEntry {
// 1110 xxxx 10xx xxxx 10xx xxxx // 1110 xxxx 10xx xxxx 10xx xxxx
px += 3; px += 3;
if (px > utfend) { if (px > utfend) {
throw new CpException("malformed input: partial character at end"); throw malformedInput(utfend);
} }
int char2 = rawBytes[px - 2]; int char2 = rawBytes[px - 2];
int char3 = rawBytes[px - 1]; int char3 = rawBytes[px - 1];
if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80)) { if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80)) {
throw new CpException("malformed input around byte " + (px - 1)); throw malformedInput(px - 1);
} }
char v = (char) (((c & 0x0F) << 12) | ((char2 & 0x3F) << 6) | (char3 & 0x3F)); char v = (char) (((c & 0x0F) << 12) | ((char2 & 0x3F) << 6) | (char3 & 0x3F));
chararr[chararr_count++] = v; chararr[chararr_count++] = v;
@ -287,7 +288,7 @@ public abstract sealed class AbstractPoolEntry {
} }
default: default:
// 10xx xxxx, 1111 xxxx // 10xx xxxx, 1111 xxxx
throw new CpException("malformed input around byte " + px); throw malformedInput(px);
} }
} }
this.hash = hashString(hash); this.hash = hashString(hash);
@ -295,7 +296,10 @@ public abstract sealed class AbstractPoolEntry {
this.chars = chararr; this.chars = chararr;
state = State.CHAR; state = State.CHAR;
} }
}
private ConstantPoolException malformedInput(int px) {
return new ConstantPoolException("#%d: malformed modified UTF8 around byte %d".formatted(index(), px));
} }
@Override @Override
@ -1134,12 +1138,4 @@ public abstract sealed class AbstractPoolEntry {
return false; return false;
} }
} }
static class CpException extends RuntimeException {
static final long serialVersionUID = 32L;
CpException(String s) {
super(s);
}
}
} }