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Set "potentialNullReference" to "error" level and fixed all issues 

There should be no functional change, the logic updated only to make
code simple so that compiler can understand what is going for. Removed
all @SuppressWarnings("null") annotations since they cannot be used if
"org.eclipse.jdt.core.compiler.problem.potentialNullReference" option is
set to the "error" level.

Bug: 470647
Change-Id: Ie93c249fa46e792198d362e531d5cbabaf41fdc4
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
This commit is contained in:
Andrey Loskutov 2015-07-26 14:42:52 +02:00
parent 847b3d1258
commit b5941c74e5
5 changed files with 39 additions and 16 deletions
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2
org.eclipse.jgit/.settings/org.eclipse.jdt.core.prefs
View File

@ -71,7 +71,7 @@ org.eclipse.jdt.core.compiler.problem.nullUncheckedConversion=ignore
org.eclipse.jdt.core.compiler.problem.overridingPackageDefaultMethod=warning
org.eclipse.jdt.core.compiler.problem.parameterAssignment=ignore
org.eclipse.jdt.core.compiler.problem.possibleAccidentalBooleanAssignment=error
org.eclipse.jdt.core.compiler.problem.potentialNullReference=warning
org.eclipse.jdt.core.compiler.problem.potentialNullReference=error
org.eclipse.jdt.core.compiler.problem.potentiallyUnclosedCloseable=ignore
org.eclipse.jdt.core.compiler.problem.rawTypeReference=ignore
org.eclipse.jdt.core.compiler.problem.redundantNullAnnotation=warning

1
org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheTree.java
View File

@ -478,6 +478,7 @@ void validate(final DirCacheEntry[] cache, final int cCnt, int cIdx,
// The entry is contained in this subtree.
//
assert(st != null);
st.validate(cache, cCnt, cIdx, pathOff + st.nameLength() + 1);
cIdx += st.entrySpan;
entrySpan += st.entrySpan;

24
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/dfs/DfsPackFile.java
View File

@ -533,7 +533,6 @@ private ByteBuffer newCopyBuffer(PackOutputStream out, ReadableChannel rc) {
return ByteBuffer.wrap(copyBuf, 0, bs);
}
@SuppressWarnings("null")
void copyAsIs(PackOutputStream out, DfsObjectToPack src,
boolean validate, DfsReader ctx) throws IOException,
StoredObjectRepresentationNotAvailableException {
@ -567,22 +566,26 @@ void copyAsIs(PackOutputStream out, DfsObjectToPack src,
c = buf[headerCnt++] & 0xff;
} while ((c & 128) != 0);
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
} else if (typeCode == Constants.OBJ_REF_DELTA) {
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
readFully(src.offset + headerCnt, buf, 0, 20, ctx);
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, 20);
crc2.update(buf, 0, 20);
}
headerCnt += 20;
} else if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
@ -599,6 +602,7 @@ void copyAsIs(PackOutputStream out, DfsObjectToPack src,
quickCopy = ctx.quickCopy(this, dataOffset, dataLength);
if (validate && idx(ctx).hasCRC32Support()) {
assert(crc1 != null);
// Index has the CRC32 code cached, validate the object.
//
expectedCRC = idx(ctx).findCRC32(src);
@ -622,6 +626,7 @@ void copyAsIs(PackOutputStream out, DfsObjectToPack src,
Long.valueOf(src.offset), getPackName()));
}
} else if (validate) {
assert(crc1 != null);
// We don't have a CRC32 code in the index, so compute it
// now while inflating the raw data to get zlib to tell us
// whether or not the data is safe.
@ -709,16 +714,21 @@ void copyAsIs(PackOutputStream out, DfsObjectToPack src,
while (cnt > 0) {
final int n = (int) Math.min(cnt, buf.length);
readFully(pos, buf, 0, n, ctx);
if (validate)
if (validate) {
assert(crc2 != null);
crc2.update(buf, 0, n);
}
out.write(buf, 0, n);
pos += n;
cnt -= n;
}
if (validate && crc2.getValue() != expectedCRC) {
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackName()));
if (validate) {
assert(crc2 != null);
if (crc2.getValue() != expectedCRC) {
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackName()));
}
}
}
}
@ -837,7 +847,6 @@ private static int read(ReadableChannel rc, ByteBuffer buf)
return buf.position();
}
@SuppressWarnings("null")
ObjectLoader load(DfsReader ctx, long pos)
throws IOException {
try {
@ -934,6 +943,7 @@ ObjectLoader load(DfsReader ctx, long pos)
if (data == null)
throw new LargeObjectException();
assert(delta != null);
do {
// Cache only the base immediately before desired object.
if (cached)

25
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/PackFile.java
View File

@ -366,7 +366,6 @@ final void copyAsIs(PackOutputStream out, LocalObjectToPack src,
}
}
@SuppressWarnings("null")
private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
boolean validate, WindowCursor curs) throws IOException,
StoredObjectRepresentationNotAvailableException {
@ -393,22 +392,26 @@ private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
c = buf[headerCnt++] & 0xff;
} while ((c & 128) != 0);
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
} else if (typeCode == Constants.OBJ_REF_DELTA) {
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
readFully(src.offset + headerCnt, buf, 0, 20, curs);
if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, 20);
crc2.update(buf, 0, 20);
}
headerCnt += 20;
} else if (validate) {
assert(crc1 != null && crc2 != null);
crc1.update(buf, 0, headerCnt);
crc2.update(buf, 0, headerCnt);
}
@ -425,6 +428,7 @@ private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
quickCopy = curs.quickCopy(this, dataOffset, dataLength);
if (validate && idx().hasCRC32Support()) {
assert(crc1 != null);
// Index has the CRC32 code cached, validate the object.
//
expectedCRC = idx().findCRC32(src);
@ -457,6 +461,7 @@ private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
if (quickCopy != null) {
quickCopy.check(inf, tmp, dataOffset, (int) dataLength);
} else {
assert(crc1 != null);
long pos = dataOffset;
long cnt = dataLength;
while (cnt > 0) {
@ -476,6 +481,7 @@ private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
JGitText.get().shortCompressedStreamAt,
Long.valueOf(src.offset)));
}
assert(crc1 != null);
expectedCRC = crc1.getValue();
} else {
expectedCRC = -1;
@ -535,16 +541,21 @@ private void copyAsIs2(PackOutputStream out, LocalObjectToPack src,
while (cnt > 0) {
final int n = (int) Math.min(cnt, buf.length);
readFully(pos, buf, 0, n, curs);
if (validate)
if (validate) {
assert(crc2 != null);
crc2.update(buf, 0, n);
}
out.write(buf, 0, n);
pos += n;
cnt -= n;
}
if (validate && crc2.getValue() != expectedCRC) {
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackFile()));
if (validate) {
assert(crc2 != null);
if (crc2.getValue() != expectedCRC) {
throw new CorruptObjectException(MessageFormat.format(
JGitText.get().objectAtHasBadZlibStream,
Long.valueOf(src.offset), getPackFile()));
}
}
}
}
@ -712,7 +723,6 @@ private void onOpenPack() throws IOException {
, getPackFile()));
}
@SuppressWarnings("null")
ObjectLoader load(final WindowCursor curs, long pos)
throws IOException, LargeObjectException {
try {
@ -811,6 +821,7 @@ ObjectLoader load(final WindowCursor curs, long pos)
if (data == null)
throw new IOException(JGitText.get().inMemoryBufferLimitExceeded);
assert(delta != null);
do {
// Cache only the base immediately before desired object.
if (cached)

3
org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/RefDirectory.java
View File

@ -881,7 +881,6 @@ private Ref readRef(String name, RefList<Ref> packed) throws IOException {
return n;
}
@SuppressWarnings("null")
private LooseRef scanRef(LooseRef ref, String name) throws IOException {
final File path = fileFor(name);
FileSnapshot currentSnapshot = null;
@ -920,6 +919,7 @@ private LooseRef scanRef(LooseRef ref, String name) throws IOException {
final String target = RawParseUtils.decode(buf, 5, n);
if (ref != null && ref.isSymbolic()
&& ref.getTarget().getName().equals(target)) {
assert(currentSnapshot != null);
currentSnapshot.setClean(otherSnapshot);
return ref;
}
@ -934,6 +934,7 @@ private LooseRef scanRef(LooseRef ref, String name) throws IOException {
id = ObjectId.fromString(buf, 0);
if (ref != null && !ref.isSymbolic()
&& ref.getTarget().getObjectId().equals(id)) {
assert(currentSnapshot != null);
currentSnapshot.setClean(otherSnapshot);
return ref;
}