ADDITIONAL SYSTEM INFORMATION :
Applies to JDK 19 and JDK 20ea

A DESCRIPTION OF THE PROBLEM :
When using an invalid pattern matching construct, i.e. using a class without decomposition pattern, in a super constructor call, javac produces a NullPointerException (at compile-time) instead of an error message.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Compile the provided example.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
This should produce an error message that java.awt.Point has no deconstruction pattern.
ACTUAL -
java.lang.NullPointerException: Cannot read field "type" because "sym" is null
        at jdk.compiler/com.sun.tools.javac.code.Types.asSuper(Types.java:2159)
        at jdk.compiler/com.sun.tools.javac.code.Types$4.visitClassType(Types.java:1189)
        at jdk.compiler/com.sun.tools.javac.code.Types$4.visitClassType(Types.java:1110)
        at jdk.compiler/com.sun.tools.javac.code.Type$ClassType.accept(Type.java:1013)
        at jdk.compiler/com.sun.tools.javac.code.Types$DefaultTypeVisitor.visit(Types.java:4906)
        at jdk.compiler/com.sun.tools.javac.code.Types.isSubtype(Types.java:1106)
        at jdk.compiler/com.sun.tools.javac.code.Types.isSubtype(Types.java:1077)
        at jdk.compiler/com.sun.tools.javac.code.Types.isCastable(Types.java:1655)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.checkCastablePattern(Attr.java:4148)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitRecordPattern(Attr.java:4223)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCRecordPattern.accept(JCTree.java:2459)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitTypeTest(Attr.java:4107)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCInstanceOf.accept(JCTree.java:2216)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:733)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitConditional(Attr.java:2000)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1519)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculative(DeferredAttr.java:500)
        at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculative(DeferredAttr.java:480)
        at jdk.compiler/com.sun.tools.javac.comp.DeferredAttr.attribSpeculative(DeferredAttr.java:467)
        at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr.lambda$processArg$0(ArgumentAttr.java:220)
        at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr.processArg(ArgumentAttr.java:242)
        at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr.processArg(ArgumentAttr.java:219)
        at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr.visitConditional(ArgumentAttr.java:255)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCConditional.accept(JCTree.java:1519)
        at jdk.compiler/com.sun.tools.javac.comp.ArgumentAttr.attribArg(ArgumentAttr.java:197)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:685)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribArgs(Attr.java:788)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitApply(Attr.java:2507)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1799)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribExpr(Attr.java:740)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitExec(Attr.java:2300)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1586)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:761)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStats(Attr.java:780)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitBlock(Attr.java:1463)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1082)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:761)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.visitMethodDef(Attr.java:1253)
        at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:912)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribTree(Attr.java:687)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribStat(Attr.java:761)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClassBody(Attr.java:5601)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5492)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attribClass(Attr.java:5316)
        at jdk.compiler/com.sun.tools.javac.comp.Attr.attrib(Attr.java:5255)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.attribute(JavaCompiler.java:1317)
        at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:946)
        at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:317)
        at jdk.compiler/com.sun.tools.javac.main.Main.compile(Main.java:176)
        at jdk.compiler/com.sun.tools.javac.Main.compile(Main.java:64)
        at jdk.compiler/com.sun.tools.javac.Main.main(Main.java:50)


---------- BEGIN SOURCE ----------
class Base { int i; Base(int j) { i = j; } }
class Sub extends Base {
  Sub(Object o) { super(o instanceof java.awt.Point(int x, int y)? x + y: 0); }
}

---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
After identifying the invalidity of the construct without the compiler's help, just fix the error in the source code.

FREQUENCY : always