From b4279f68174129f8b7b6180e6782641884daf013 Mon Sep 17 00:00:00 2001 From: Timothy Hoffman <4001421+tim-hoffman@users.noreply.github.com> Date: Fri, 16 Jul 2021 10:55:33 -0500 Subject: [PATCH] Replace StringBuffer with StringBuilder and other minor String optimizations --- src/main/javassist/ClassPoolTail.java | 6 ++--- src/main/javassist/CtBehavior.java | 2 +- src/main/javassist/CtClass.java | 10 ++++---- src/main/javassist/CtClassType.java | 6 ++--- src/main/javassist/CtField.java | 2 +- src/main/javassist/CtMember.java | 12 +++++----- src/main/javassist/CtNewClass.java | 2 +- src/main/javassist/bytecode/Descriptor.java | 24 +++++++++---------- .../bytecode/InstructionPrinter.java | 12 +++++----- .../ParameterAnnotationsAttribute.java | 2 +- .../bytecode/SignatureAttribute.java | 10 ++++---- .../bytecode/analysis/ControlFlow.java | 6 ++--- .../javassist/bytecode/analysis/Frame.java | 4 ++-- .../bytecode/analysis/MultiType.java | 7 +++--- .../bytecode/annotation/Annotation.java | 9 +++---- .../bytecode/annotation/ArrayMemberValue.java | 5 ++-- .../bytecode/annotation/MemberValue.java | 4 ++-- .../bytecode/stackmap/BasicBlock.java | 14 +++++------ .../javassist/bytecode/stackmap/TypeData.java | 2 +- .../bytecode/stackmap/TypedBlock.java | 4 ++-- src/main/javassist/compiler/CodeGen.java | 8 +++---- src/main/javassist/compiler/JvstCodeGen.java | 4 ++-- src/main/javassist/compiler/Lex.java | 14 +++++------ .../javassist/compiler/MemberResolver.java | 2 +- src/main/javassist/compiler/Parser.java | 6 ++--- src/main/javassist/compiler/TypeChecker.java | 4 ++-- src/main/javassist/compiler/ast/ASTList.java | 2 +- src/main/javassist/compiler/ast/ASTree.java | 2 +- .../javassist/compiler/ast/Declarator.java | 4 ++-- src/main/javassist/compiler/ast/Pair.java | 2 +- .../convert/TransformAccessArrayField.java | 2 +- .../javassist/tools/rmi/StubGenerator.java | 2 +- src/main/javassist/tools/web/Webserver.java | 2 +- .../javassist/util/proxy/ProxyFactory.java | 6 ++--- .../javassist/util/proxy/RuntimeSupport.java | 6 ++--- 35 files changed, 106 insertions(+), 103 deletions(-) diff --git a/src/main/javassist/ClassPoolTail.java b/src/main/javassist/ClassPoolTail.java index 1aa948f7..d86cd768 100644 --- a/src/main/javassist/ClassPoolTail.java +++ b/src/main/javassist/ClassPoolTail.java @@ -54,7 +54,7 @@ final class DirClassPath implements ClassPath { char sep = File.separatorChar; String filename = directory + sep + classname.replace('.', sep) + ".class"; - return new FileInputStream(filename.toString()); + return new FileInputStream(filename); } catch (FileNotFoundException e) {} catch (SecurityException e) {} @@ -187,7 +187,7 @@ final class JarClassPath implements ClassPath { @Override public String toString() { - return jarfileURL == null ? "" : jarfileURL.toString(); + return jarfileURL == null ? "" : jarfileURL; } } @@ -200,7 +200,7 @@ final class ClassPoolTail { @Override public String toString() { - StringBuffer buf = new StringBuffer(); + StringBuilder buf = new StringBuilder(); buf.append("[class path: "); ClassPathList list = pathList; while (list != null) { diff --git a/src/main/javassist/CtBehavior.java b/src/main/javassist/CtBehavior.java index da7cff04..595da505 100644 --- a/src/main/javassist/CtBehavior.java +++ b/src/main/javassist/CtBehavior.java @@ -100,7 +100,7 @@ public abstract class CtBehavior extends CtMember { } @Override - protected void extendToString(StringBuffer buffer) { + protected void extendToString(StringBuilder buffer) { buffer.append(' '); buffer.append(getName()); buffer.append(' '); diff --git a/src/main/javassist/CtClass.java b/src/main/javassist/CtClass.java index f227019f..06f80438 100644 --- a/src/main/javassist/CtClass.java +++ b/src/main/javassist/CtClass.java @@ -200,12 +200,12 @@ public abstract class CtClass { */ @Override public String toString() { - StringBuffer buf = new StringBuffer(getClass().getName()); - buf.append("@"); + StringBuilder buf = new StringBuilder(getClass().getName()); + buf.append('@'); buf.append(Integer.toHexString(hashCode())); - buf.append("["); + buf.append('['); extendToString(buf); - buf.append("]"); + buf.append(']'); return buf.toString(); } @@ -213,7 +213,7 @@ public abstract class CtClass { * Implemented in subclasses to add to the {@link #toString()} result. * Subclasses should put a space before each token added to the buffer. */ - protected void extendToString(StringBuffer buffer) { + protected void extendToString(StringBuilder buffer) { buffer.append(getName()); } diff --git a/src/main/javassist/CtClassType.java b/src/main/javassist/CtClassType.java index 959ec302..22b873a6 100644 --- a/src/main/javassist/CtClassType.java +++ b/src/main/javassist/CtClassType.java @@ -106,7 +106,7 @@ class CtClassType extends CtClass { } @Override - protected void extendToString(StringBuffer buffer) { + protected void extendToString(StringBuilder buffer) { if (wasChanged) buffer.append("changed "); @@ -125,7 +125,7 @@ class CtClassType extends CtClass { if (ext != null) { String name = ext.getName(); if (!name.equals("java.lang.Object")) - buffer.append(" extends " + ext.getName()); + buffer.append(" extends ").append(ext.getName()); } } catch (NotFoundException e) { @@ -155,7 +155,7 @@ class CtClassType extends CtClass { memCache.methodHead(), memCache.lastMethod()); } - private void exToString(StringBuffer buffer, String msg, + private void exToString(StringBuilder buffer, String msg, CtMember head, CtMember tail) { buffer.append(msg); while (head != tail) { diff --git a/src/main/javassist/CtField.java b/src/main/javassist/CtField.java index 892fff82..dbcd82d5 100644 --- a/src/main/javassist/CtField.java +++ b/src/main/javassist/CtField.java @@ -128,7 +128,7 @@ public class CtField extends CtMember { } @Override - protected void extendToString(StringBuffer buffer) { + protected void extendToString(StringBuilder buffer) { buffer.append(' '); buffer.append(getName()); buffer.append(' '); diff --git a/src/main/javassist/CtMember.java b/src/main/javassist/CtMember.java index 8de480c9..bacfead8 100644 --- a/src/main/javassist/CtMember.java +++ b/src/main/javassist/CtMember.java @@ -30,7 +30,7 @@ public abstract class CtMember { */ static class Cache extends CtMember { @Override - protected void extendToString(StringBuffer buffer) {} + protected void extendToString(StringBuilder buffer) {} @Override public boolean hasAnnotation(String clz) { return false; } @Override @@ -155,13 +155,13 @@ public abstract class CtMember { @Override public String toString() { - StringBuffer buffer = new StringBuffer(getClass().getName()); - buffer.append("@"); + StringBuilder buffer = new StringBuilder(getClass().getName()); + buffer.append('@'); buffer.append(Integer.toHexString(hashCode())); - buffer.append("["); + buffer.append('['); buffer.append(Modifier.toString(getModifiers())); extendToString(buffer); - buffer.append("]"); + buffer.append(']'); return buffer.toString(); } @@ -172,7 +172,7 @@ public abstract class CtMember { * provided first; subclasses should provide additional data such * as return type, field or method name, etc. */ - protected abstract void extendToString(StringBuffer buffer); + protected abstract void extendToString(StringBuilder buffer); /** * Returns the class that declares this member. diff --git a/src/main/javassist/CtNewClass.java b/src/main/javassist/CtNewClass.java index b0a14806..496eaec7 100644 --- a/src/main/javassist/CtNewClass.java +++ b/src/main/javassist/CtNewClass.java @@ -45,7 +45,7 @@ class CtNewClass extends CtClassType { } @Override - protected void extendToString(StringBuffer buffer) { + protected void extendToString(StringBuilder buffer) { if (hasConstructor) buffer.append("hasConstructor "); diff --git a/src/main/javassist/bytecode/Descriptor.java b/src/main/javassist/bytecode/Descriptor.java index fc49b876..4e4fd863 100644 --- a/src/main/javassist/bytecode/Descriptor.java +++ b/src/main/javassist/bytecode/Descriptor.java @@ -109,7 +109,7 @@ public class Descriptor { if (arrayDim == 0) return name; - StringBuffer sbuf = new StringBuffer(name); + StringBuilder sbuf = new StringBuilder(name); do { sbuf.append("[]"); } while (--arrayDim > 0); @@ -157,7 +157,7 @@ public class Descriptor { if (desc.indexOf(oldname) < 0) return desc; - StringBuffer newdesc = new StringBuffer(); + StringBuilder newdesc = new StringBuilder(); int head = 0; int i = 0; for (;;) { @@ -200,7 +200,7 @@ public class Descriptor { if (map == null) return desc; - StringBuffer newdesc = new StringBuffer(); + StringBuilder newdesc = new StringBuilder(); int head = 0; int i = 0; for (;;) { @@ -237,12 +237,12 @@ public class Descriptor { * Returns the descriptor representing the given type. */ public static String of(CtClass type) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); toDescriptor(sbuf, type); return sbuf.toString(); } - private static void toDescriptor(StringBuffer desc, CtClass type) { + private static void toDescriptor(StringBuilder desc, CtClass type) { if (type.isArray()) { desc.append('['); try { @@ -284,7 +284,7 @@ public class Descriptor { * @param paramTypes parameter types */ public static String ofMethod(CtClass returnType, CtClass[] paramTypes) { - StringBuffer desc = new StringBuffer(); + StringBuilder desc = new StringBuilder(); desc.append('('); if (paramTypes != null) { int n = paramTypes.length; @@ -323,7 +323,7 @@ public class Descriptor { int i = desc.indexOf(')'); if (i < 0) return desc; - StringBuffer newdesc = new StringBuffer(); + StringBuilder newdesc = new StringBuilder(); newdesc.append(desc.substring(0, i)); newdesc.append('L'); newdesc.append(classname.replace('.', '/')); @@ -361,7 +361,7 @@ public class Descriptor { int i = descriptor.indexOf(')'); if (i < 0) return descriptor; - StringBuffer newdesc = new StringBuffer(); + StringBuilder newdesc = new StringBuilder(); newdesc.append(descriptor.substring(0, i)); toDescriptor(newdesc, type); newdesc.append(descriptor.substring(i)); @@ -395,7 +395,7 @@ public class Descriptor { int i = desc.indexOf(')'); if (i < 0) return desc; - StringBuffer newdesc = new StringBuffer(); + StringBuilder newdesc = new StringBuilder(); newdesc.append(desc.substring(0, i + 1)); newdesc.append('L'); newdesc.append(classname.replace('.', '/')); @@ -561,7 +561,7 @@ public class Descriptor { } if (arrayDim > 0) { - StringBuffer sbuf = new StringBuffer(name); + StringBuilder sbuf = new StringBuilder(name); while (arrayDim-- > 0) sbuf.append("[]"); @@ -719,7 +719,7 @@ public class Descriptor { static class PrettyPrinter { static String toString(String desc) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); if (desc.charAt(0) == '(') { int pos = 1; sbuf.append('('); @@ -738,7 +738,7 @@ public class Descriptor { return sbuf.toString(); } - static int readType(StringBuffer sbuf, int pos, String desc) { + static int readType(StringBuilder sbuf, int pos, String desc) { char c = desc.charAt(pos); int arrayDim = 0; while (c == '[') { diff --git a/src/main/javassist/bytecode/InstructionPrinter.java b/src/main/javassist/bytecode/InstructionPrinter.java index 6d18a4d4..ae853294 100644 --- a/src/main/javassist/bytecode/InstructionPrinter.java +++ b/src/main/javassist/bytecode/InstructionPrinter.java @@ -235,17 +235,17 @@ public class InstructionPrinter implements Opcode { private static String lookupSwitch(CodeIterator iter, int pos) { - StringBuffer buffer = new StringBuffer("lookupswitch {\n"); + StringBuilder buffer = new StringBuilder("lookupswitch {\n"); int index = (pos & ~3) + 4; // default - buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n"); + buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append('\n'); int npairs = iter.s32bitAt(index += 4); int end = npairs * 8 + (index += 4); for (; index < end; index += 8) { int match = iter.s32bitAt(index); int target = iter.s32bitAt(index + 4) + pos; - buffer.append("\t\t").append(match).append(": ").append(target).append("\n"); + buffer.append("\t\t").append(match).append(": ").append(target).append('\n'); } buffer.setCharAt(buffer.length() - 1, '}'); @@ -254,10 +254,10 @@ public class InstructionPrinter implements Opcode { private static String tableSwitch(CodeIterator iter, int pos) { - StringBuffer buffer = new StringBuffer("tableswitch {\n"); + StringBuilder buffer = new StringBuilder("tableswitch {\n"); int index = (pos & ~3) + 4; // default - buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append("\n"); + buffer.append("\t\tdefault: ").append(pos + iter.s32bitAt(index)).append('\n'); int low = iter.s32bitAt(index += 4); int high = iter.s32bitAt(index += 4); int end = (high - low + 1) * 4 + (index += 4); @@ -265,7 +265,7 @@ public class InstructionPrinter implements Opcode { // Offset table for (int key = low; index < end; index += 4, key++) { int target = iter.s32bitAt(index) + pos; - buffer.append("\t\t").append(key).append(": ").append(target).append("\n"); + buffer.append("\t\t").append(key).append(": ").append(target).append('\n'); } buffer.setCharAt(buffer.length() - 1, '}'); diff --git a/src/main/javassist/bytecode/ParameterAnnotationsAttribute.java b/src/main/javassist/bytecode/ParameterAnnotationsAttribute.java index 49e2646f..ec97d18f 100644 --- a/src/main/javassist/bytecode/ParameterAnnotationsAttribute.java +++ b/src/main/javassist/bytecode/ParameterAnnotationsAttribute.java @@ -201,7 +201,7 @@ public class ParameterAnnotationsAttribute extends AttributeInfo { StringBuilder sbuf = new StringBuilder(); for (Annotation[] a : aa) { for (Annotation i : a) - sbuf.append(i.toString()).append(" "); + sbuf.append(i.toString()).append(' '); sbuf.append(", "); } diff --git a/src/main/javassist/bytecode/SignatureAttribute.java b/src/main/javassist/bytecode/SignatureAttribute.java index 1a8a62dc..4671b787 100644 --- a/src/main/javassist/bytecode/SignatureAttribute.java +++ b/src/main/javassist/bytecode/SignatureAttribute.java @@ -431,7 +431,7 @@ public class SignatureAttribute extends AttributeInfo { */ @Override public String toString() { - StringBuffer sbuf = new StringBuffer(getName()); + StringBuilder sbuf = new StringBuilder(getName()); if (superClass != null) sbuf.append(" extends ").append(superClass.toString()); @@ -740,7 +740,7 @@ public class SignatureAttribute extends AttributeInfo { */ @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); ClassType parent = getDeclaringClass(); if (parent != null) sbuf.append(parent.toString()).append('.'); @@ -748,7 +748,7 @@ public class SignatureAttribute extends AttributeInfo { return toString2(sbuf); } - private String toString2(StringBuffer sbuf) { + private String toString2(StringBuilder sbuf) { sbuf.append(name); if (arguments != null) { sbuf.append('<'); @@ -773,7 +773,7 @@ public class SignatureAttribute extends AttributeInfo { */ @Override public String jvmTypeName() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); ClassType parent = getDeclaringClass(); if (parent != null) sbuf.append(parent.jvmTypeName()).append('$'); @@ -868,7 +868,7 @@ public class SignatureAttribute extends AttributeInfo { */ @Override public String toString() { - StringBuffer sbuf = new StringBuffer(componentType.toString()); + StringBuilder sbuf = new StringBuilder(componentType.toString()); for (int i = 0; i < dim; i++) sbuf.append("[]"); diff --git a/src/main/javassist/bytecode/analysis/ControlFlow.java b/src/main/javassist/bytecode/analysis/ControlFlow.java index e47c00d3..46b82dbf 100644 --- a/src/main/javassist/bytecode/analysis/ControlFlow.java +++ b/src/main/javassist/bytecode/analysis/ControlFlow.java @@ -261,13 +261,13 @@ public class ControlFlow { } @Override - protected void toString2(StringBuffer sbuf) { + protected void toString2(StringBuilder sbuf) { super.toString2(sbuf); sbuf.append(", incoming{"); for (int i = 0; i < entrances.length; i++) sbuf.append(entrances[i].position).append(", "); - sbuf.append("}"); + sbuf.append('}'); } BasicBlock[] getExit() { return exit; } @@ -360,7 +360,7 @@ public class ControlFlow { */ @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append("Node[pos=").append(block().position()); sbuf.append(", parent="); sbuf.append(parent == null ? "*" : Integer.toString(parent.block().position())); diff --git a/src/main/javassist/bytecode/analysis/Frame.java b/src/main/javassist/bytecode/analysis/Frame.java index 28c62e35..916988c2 100644 --- a/src/main/javassist/bytecode/analysis/Frame.java +++ b/src/main/javassist/bytecode/analysis/Frame.java @@ -231,7 +231,7 @@ public class Frame { @Override public String toString() { - StringBuffer buffer = new StringBuffer(); + StringBuilder buffer = new StringBuilder(); buffer.append("locals = ["); for (int i = 0; i < locals.length; i++) { @@ -245,7 +245,7 @@ public class Frame { if (i < top - 1) buffer.append(", "); } - buffer.append("]"); + buffer.append(']'); return buffer.toString(); } diff --git a/src/main/javassist/bytecode/analysis/MultiType.java b/src/main/javassist/bytecode/analysis/MultiType.java index a8f6fc67..90a50843 100644 --- a/src/main/javassist/bytecode/analysis/MultiType.java +++ b/src/main/javassist/bytecode/analysis/MultiType.java @@ -312,14 +312,15 @@ public class MultiType extends Type { if (resolved != null) return resolved.toString(); - StringBuffer buffer = new StringBuffer("{"); + StringBuilder buffer = new StringBuilder(); + buffer.append('{'); for (String key:interfaces.keySet()) buffer.append(key).append(", "); if (potentialClass != null) - buffer.append("*").append(potentialClass.toString()); + buffer.append('*').append(potentialClass.toString()); else buffer.setLength(buffer.length() - 2); - buffer.append("}"); + buffer.append('}'); return buffer.toString(); } } diff --git a/src/main/javassist/bytecode/annotation/Annotation.java b/src/main/javassist/bytecode/annotation/Annotation.java index 1cec468b..f700f036 100644 --- a/src/main/javassist/bytecode/annotation/Annotation.java +++ b/src/main/javassist/bytecode/annotation/Annotation.java @@ -210,17 +210,18 @@ public class Annotation { */ @Override public String toString() { - StringBuffer buf = new StringBuffer("@"); + StringBuilder buf = new StringBuilder(); + buf.append('@'); buf.append(getTypeName()); if (members != null) { - buf.append("("); + buf.append('('); for (String name:members.keySet()) { - buf.append(name).append("=") + buf.append(name).append('=') .append(getMemberValue(name)) .append(", "); } buf.setLength(buf.length()-2); - buf.append(")"); + buf.append(')'); } return buf.toString(); diff --git a/src/main/javassist/bytecode/annotation/ArrayMemberValue.java b/src/main/javassist/bytecode/annotation/ArrayMemberValue.java index d1eeb271..2bf1b7ac 100644 --- a/src/main/javassist/bytecode/annotation/ArrayMemberValue.java +++ b/src/main/javassist/bytecode/annotation/ArrayMemberValue.java @@ -117,7 +117,8 @@ public class ArrayMemberValue extends MemberValue { */ @Override public String toString() { - StringBuffer buf = new StringBuffer("{"); + StringBuilder buf = new StringBuilder(); + buf.append('{'); if (values != null) { for (int i = 0; i < values.length; i++) { buf.append(values[i].toString()); @@ -126,7 +127,7 @@ public class ArrayMemberValue extends MemberValue { } } - buf.append("}"); + buf.append('}'); return buf.toString(); } diff --git a/src/main/javassist/bytecode/annotation/MemberValue.java b/src/main/javassist/bytecode/annotation/MemberValue.java index da99885c..3eae5355 100644 --- a/src/main/javassist/bytecode/annotation/MemberValue.java +++ b/src/main/javassist/bytecode/annotation/MemberValue.java @@ -64,9 +64,9 @@ public abstract class MemberValue { int index = classname.indexOf("[]"); if (index != -1) { String rawType = classname.substring(0, index); - StringBuffer sb = new StringBuffer(Descriptor.of(rawType)); + StringBuilder sb = new StringBuilder(Descriptor.of(rawType)); while (index != -1) { - sb.insert(0, "["); + sb.insert(0, '['); index = classname.indexOf("[]", index + 1); } return sb.toString().replace('/', '.'); diff --git a/src/main/javassist/bytecode/stackmap/BasicBlock.java b/src/main/javassist/bytecode/stackmap/BasicBlock.java index 231ffc3a..2b32a296 100644 --- a/src/main/javassist/bytecode/stackmap/BasicBlock.java +++ b/src/main/javassist/bytecode/stackmap/BasicBlock.java @@ -78,33 +78,33 @@ public class BasicBlock { @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); String cname = this.getClass().getName(); int i = cname.lastIndexOf('.'); sbuf.append(i < 0 ? cname : cname.substring(i + 1)); - sbuf.append("["); + sbuf.append('['); toString2(sbuf); - sbuf.append("]"); + sbuf.append(']'); return sbuf.toString(); } - protected void toString2(StringBuffer sbuf) { + protected void toString2(StringBuilder sbuf) { sbuf.append("pos=").append(position).append(", len=") .append(length).append(", in=").append(incoming) .append(", exit{"); if (exit != null) for (BasicBlock b:exit) - sbuf.append(b.position).append(","); + sbuf.append(b.position).append(','); sbuf.append("}, {"); Catch th = toCatch; while (th != null) { - sbuf.append("(").append(th.body.position).append(", ") + sbuf.append('(').append(th.body.position).append(", ") .append(th.typeIndex).append("), "); th = th.next; } - sbuf.append("}"); + sbuf.append('}'); } /** diff --git a/src/main/javassist/bytecode/stackmap/TypeData.java b/src/main/javassist/bytecode/stackmap/TypeData.java index 4762eb85..c676ac79 100644 --- a/src/main/javassist/bytecode/stackmap/TypeData.java +++ b/src/main/javassist/bytecode/stackmap/TypeData.java @@ -434,7 +434,7 @@ public abstract class TypeData { private String fixTypes2(List scc, Set lowersSet, ClassPool cp) throws NotFoundException { Iterator it = lowersSet.iterator(); - if (lowersSet.size() == 0) + if (lowersSet.isEmpty()) return null; // only NullType else if (lowersSet.size() == 1) return it.next(); diff --git a/src/main/javassist/bytecode/stackmap/TypedBlock.java b/src/main/javassist/bytecode/stackmap/TypedBlock.java index 14fa7f22..634c8dd0 100644 --- a/src/main/javassist/bytecode/stackmap/TypedBlock.java +++ b/src/main/javassist/bytecode/stackmap/TypedBlock.java @@ -59,7 +59,7 @@ public class TypedBlock extends BasicBlock { } @Override - protected void toString2(StringBuffer sbuf) { + protected void toString2(StringBuilder sbuf) { super.toString2(sbuf); sbuf.append(",\n stack={"); printTypes(sbuf, stackTop, stackTypes); @@ -68,7 +68,7 @@ public class TypedBlock extends BasicBlock { sbuf.append('}'); } - private void printTypes(StringBuffer sbuf, int size, + private void printTypes(StringBuilder sbuf, int size, TypeData[] types) { if (types == null) return; diff --git a/src/main/javassist/compiler/CodeGen.java b/src/main/javassist/compiler/CodeGen.java index 3cb11719..e3115617 100644 --- a/src/main/javassist/compiler/CodeGen.java +++ b/src/main/javassist/compiler/CodeGen.java @@ -197,7 +197,7 @@ public abstract class CodeGen extends Visitor implements Opcode, TokenId { if (dim == 0) return name; - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); int d = dim; while (d-- > 0) sbuf.append('['); @@ -241,7 +241,7 @@ public abstract class CodeGen extends Visitor implements Opcode, TokenId { break; } - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); while (dim-- > 0) sbuf.append('['); @@ -473,7 +473,7 @@ public abstract class CodeGen extends Visitor implements Opcode, TokenId { boolean alwaysBranch = compileBooleanExpr(true, expr); if (alwaysBranch) { bytecode.addOpcode(Opcode.GOTO); - alwaysBranch = breakList.size() == 0; + alwaysBranch = breakList.isEmpty(); } bytecode.addIndex(pc2 - bytecode.currentPc() + 1); @@ -1663,7 +1663,7 @@ public abstract class CodeGen extends Visitor implements Opcode, TokenId { * must be passed to Class.forName(). */ name2 = MemberResolver.jvmToJavaName(name2); - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); while (i-- >= 0) sbuf.append('['); diff --git a/src/main/javassist/compiler/JvstCodeGen.java b/src/main/javassist/compiler/JvstCodeGen.java index 5a43d65e..714b9699 100644 --- a/src/main/javassist/compiler/JvstCodeGen.java +++ b/src/main/javassist/compiler/JvstCodeGen.java @@ -264,7 +264,7 @@ public class JvstCodeGen extends MemberCodeGen { /* To support $cflow(). */ protected void atCflow(ASTList cname) throws CompileError { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); if (cname == null || cname.tail() != null) throw new CompileError("bad " + cflowName); @@ -288,7 +288,7 @@ public class JvstCodeGen extends MemberCodeGen { * : $cflow '(' ')' * : ('.' )* */ - private static void makeCflowName(StringBuffer sbuf, ASTree name) + private static void makeCflowName(StringBuilder sbuf, ASTree name) throws CompileError { if (name instanceof Symbol) { diff --git a/src/main/javassist/compiler/Lex.java b/src/main/javassist/compiler/Lex.java index 498b22fb..b7c39a98 100644 --- a/src/main/javassist/compiler/Lex.java +++ b/src/main/javassist/compiler/Lex.java @@ -27,7 +27,7 @@ class Token { public class Lex implements TokenId { private int lastChar; - private StringBuffer textBuffer; + private StringBuilder textBuffer; private Token currentToken; private Token lookAheadTokens; @@ -40,7 +40,7 @@ public class Lex implements TokenId { */ public Lex(String s) { lastChar = -1; - textBuffer = new StringBuffer(); + textBuffer = new StringBuilder(); currentToken = new Token(); lookAheadTokens = null; @@ -123,7 +123,7 @@ public class Lex implements TokenId { else if(c == '.'){ c = getc(); if ('0' <= c && c <= '9') { - StringBuffer tbuf = textBuffer; + StringBuilder tbuf = textBuffer; tbuf.setLength(0); tbuf.append('.'); return readDouble(tbuf, c, token); @@ -205,7 +205,7 @@ public class Lex implements TokenId { private int readStringL(Token token) { int c; - StringBuffer tbuf = textBuffer; + StringBuilder tbuf = textBuffer; tbuf.setLength(0); for (;;) { while ((c = getc()) != '"') { @@ -287,7 +287,7 @@ public class Lex implements TokenId { } else if (c2 == 'E' || c2 == 'e' || c2 == 'D' || c2 == 'd' || c2 == '.') { - StringBuffer tbuf = textBuffer; + StringBuilder tbuf = textBuffer; tbuf.setLength(0); tbuf.append(value); return readDouble(tbuf, c2, token); @@ -300,7 +300,7 @@ public class Lex implements TokenId { } } - private int readDouble(StringBuffer sbuf, int c, Token token) { + private int readDouble(StringBuilder sbuf, int c, Token token) { if (c != 'E' && c != 'e' && c != 'D' && c != 'd') { sbuf.append((char)c); for (;;) { @@ -412,7 +412,7 @@ public class Lex implements TokenId { } private int readIdentifier(int c, Token token) { - StringBuffer tbuf = textBuffer; + StringBuilder tbuf = textBuffer; tbuf.setLength(0); do { diff --git a/src/main/javassist/compiler/MemberResolver.java b/src/main/javassist/compiler/MemberResolver.java index 7fcd5d8a..c01974df 100644 --- a/src/main/javassist/compiler/MemberResolver.java +++ b/src/main/javassist/compiler/MemberResolver.java @@ -491,7 +491,7 @@ public class MemberResolver implements TokenId { int i = classname.lastIndexOf('.'); if (notCheckInner || i < 0) throw e; - StringBuffer sbuf = new StringBuffer(classname); + StringBuilder sbuf = new StringBuilder(classname); sbuf.setCharAt(i, '$'); classname = sbuf.toString(); } diff --git a/src/main/javassist/compiler/Parser.java b/src/main/javassist/compiler/Parser.java index ae73fb29..2b0dfd69 100644 --- a/src/main/javassist/compiler/Parser.java +++ b/src/main/javassist/compiler/Parser.java @@ -1113,7 +1113,7 @@ public final class Parser implements TokenId { { String cname = toClassName(className); if (dim > 0) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); while (dim-- > 0) sbuf.append('['); @@ -1199,12 +1199,12 @@ public final class Parser implements TokenId { private String toClassName(ASTree name) throws CompileError { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); toClassName(name, sbuf); return sbuf.toString(); } - private void toClassName(ASTree name, StringBuffer sbuf) + private void toClassName(ASTree name, StringBuilder sbuf) throws CompileError { if (name instanceof Symbol) { diff --git a/src/main/javassist/compiler/TypeChecker.java b/src/main/javassist/compiler/TypeChecker.java index ec7e3cf3..bceba419 100644 --- a/src/main/javassist/compiler/TypeChecker.java +++ b/src/main/javassist/compiler/TypeChecker.java @@ -74,7 +74,7 @@ public class TypeChecker extends Visitor implements Opcode, TokenId { */ protected static String argTypesToString(int[] types, int[] dims, String[] cnames) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append('('); int n = types.length; if (n > 0) { @@ -96,7 +96,7 @@ public class TypeChecker extends Visitor implements Opcode, TokenId { * Converts a tuple of exprType, arrayDim, and className * into a String object. */ - protected static StringBuffer typeToString(StringBuffer sbuf, + protected static StringBuilder typeToString(StringBuilder sbuf, int type, int dim, String cname) { String s; if (type == CLASS) diff --git a/src/main/javassist/compiler/ast/ASTList.java b/src/main/javassist/compiler/ast/ASTList.java index 67fbd97a..d9232ca0 100644 --- a/src/main/javassist/compiler/ast/ASTList.java +++ b/src/main/javassist/compiler/ast/ASTList.java @@ -79,7 +79,7 @@ public class ASTList extends ASTree { @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append("(<"); sbuf.append(getTag()); sbuf.append('>'); diff --git a/src/main/javassist/compiler/ast/ASTree.java b/src/main/javassist/compiler/ast/ASTree.java index 7fd05fd4..3d4dd842 100644 --- a/src/main/javassist/compiler/ast/ASTree.java +++ b/src/main/javassist/compiler/ast/ASTree.java @@ -46,7 +46,7 @@ public abstract class ASTree implements Serializable { @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append('<'); sbuf.append(getTag()); sbuf.append('>'); diff --git a/src/main/javassist/compiler/ast/Declarator.java b/src/main/javassist/compiler/ast/Declarator.java index 24170db0..c29f6740 100644 --- a/src/main/javassist/compiler/ast/Declarator.java +++ b/src/main/javassist/compiler/ast/Declarator.java @@ -107,12 +107,12 @@ public class Declarator extends ASTList implements TokenId { if (name == null) return null; - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); astToClassName(sbuf, name, sep); return sbuf.toString(); } - private static void astToClassName(StringBuffer sbuf, ASTList name, + private static void astToClassName(StringBuilder sbuf, ASTList name, char sep) { for (;;) { ASTree h = name.head(); diff --git a/src/main/javassist/compiler/ast/Pair.java b/src/main/javassist/compiler/ast/Pair.java index 840c1145..949028a4 100644 --- a/src/main/javassist/compiler/ast/Pair.java +++ b/src/main/javassist/compiler/ast/Pair.java @@ -37,7 +37,7 @@ public class Pair extends ASTree { @Override public String toString() { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append("( "); sbuf.append(left == null ? "" : left.toString()); sbuf.append(" . "); diff --git a/src/main/javassist/convert/TransformAccessArrayField.java b/src/main/javassist/convert/TransformAccessArrayField.java index 6dab42a5..b80ed0c3 100644 --- a/src/main/javassist/convert/TransformAccessArrayField.java +++ b/src/main/javassist/convert/TransformAccessArrayField.java @@ -218,7 +218,7 @@ public final class TransformAccessArrayField extends Transformer { break; } - if (methodName.equals("")) + if ("".equals(methodName)) methodName = null; return methodName; diff --git a/src/main/javassist/tools/rmi/StubGenerator.java b/src/main/javassist/tools/rmi/StubGenerator.java index b0817ab5..a06ebc60 100644 --- a/src/main/javassist/tools/rmi/StubGenerator.java +++ b/src/main/javassist/tools/rmi/StubGenerator.java @@ -183,7 +183,7 @@ public class StubGenerator implements Translator { if (!rtclass.isArray()) name = rtclass.getName(); else { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); do { sbuf.append("[]"); rtclass = rtclass.getComponentType(); diff --git a/src/main/javassist/tools/web/Webserver.java b/src/main/javassist/tools/web/Webserver.java index d90e8e34..99e15faf 100644 --- a/src/main/javassist/tools/web/Webserver.java +++ b/src/main/javassist/tools/web/Webserver.java @@ -222,7 +222,7 @@ public class Webserver { } private String readLine(InputStream in) throws IOException { - StringBuffer buf = new StringBuffer(); + StringBuilder buf = new StringBuilder(); int c; while ((c = in.read()) >= 0 && c != 0x0d) buf.append((char)c); diff --git a/src/main/javassist/util/proxy/ProxyFactory.java b/src/main/javassist/util/proxy/ProxyFactory.java index 7d88e07a..2a20b2ca 100644 --- a/src/main/javassist/util/proxy/ProxyFactory.java +++ b/src/main/javassist/util/proxy/ProxyFactory.java @@ -576,14 +576,14 @@ public class ProxyFactory { public String getKey(Class superClass, Class[] interfaces, byte[] signature, boolean useWriteReplace) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); if (superClass != null){ sbuf.append(superClass.getName()); } - sbuf.append(":"); + sbuf.append(':'); for (int i = 0; i < interfaces.length; i++) { sbuf.append(interfaces[i].getName()); - sbuf.append(":"); + sbuf.append(':'); } for (int i = 0; i < signature.length; i++) { byte b = signature[i]; diff --git a/src/main/javassist/util/proxy/RuntimeSupport.java b/src/main/javassist/util/proxy/RuntimeSupport.java index 0bd0cce9..9eb1c49e 100644 --- a/src/main/javassist/util/proxy/RuntimeSupport.java +++ b/src/main/javassist/util/proxy/RuntimeSupport.java @@ -198,7 +198,7 @@ public class RuntimeSupport { * @param retType return type. */ public static String makeDescriptor(Class[] params, Class retType) { - StringBuffer sbuf = new StringBuffer(); + StringBuilder sbuf = new StringBuilder(); sbuf.append('('); for (int i = 0; i < params.length; i++) makeDesc(sbuf, params[i]); @@ -217,12 +217,12 @@ public class RuntimeSupport { * @param retType return type. */ public static String makeDescriptor(String params, Class retType) { - StringBuffer sbuf = new StringBuffer(params); + StringBuilder sbuf = new StringBuilder(params); makeDesc(sbuf, retType); return sbuf.toString(); } - private static void makeDesc(StringBuffer sbuf, Class type) { + private static void makeDesc(StringBuilder sbuf, Class type) { if (type.isArray()) { sbuf.append('['); makeDesc(sbuf, type.getComponentType()); -- 2.39.5